Panicum Polycaulon
Panicum Polycaulon N. Sp. •plant Yellowish Green, With The Habit Of P. Ciliatum Ell., Smooth And Glabrous, Excepting The Margins Of The Sheaths And Leaves, And The Axis Of The Panicle Which Is Sparingly Pilose. Culms Densely Caespitose, The Upper Portion Naked, 2 Dm. Tall Or Less, Erect, Simple, Or ...
Panicum
Panicum All30-hiarginatum 0. Sp. Whole Plant, With The Exception Of The Spikelets And The Lower Most Sheaths, Smooth And Glabrous. Culms Erect, Slender, 1.5-4.5 Dm. Tall, Somewhat Branched Toward The Base ; Sheaths Short, Often Sparingly Ciliate On The Margins, Those On The Culm One-third The Length Of The Internodes ...
Panicum_2
Panicum Leucotukix N. Sp. Culms Caespitose, 1-4.5 Dm. Tall, Erect Or Ascending, Somewhat Branched, Sparingly Pubescent With Ascending Hairs, The Nodes Glabrous. Sheaths Less Than One-half As Long As The Internodes, 2 Cm. Long Or Less, Usually Purplish, Pubescent With Ascending Or Nearly Appressed Long White Hairs, Those At The ...
Panicuni Malacophyllum
Panicuni Malacophyllum N. Sp. Whole Plant, Except The Leaves, Papillose-hirsute With Rather Soft Long Spreading Hairs. Culms 4 Din, Tall Or Less, Erect, At Length Branching Toward The Summit; Nodes Densely Barbed With Reflexed Hairs ; Ligule A Ring Of Hairs About I Mm. Long ; Sheaths Shorter Than The ...
Paronychia Chorizanthoides
Paronychia Chorizanthoides. Annual, Slender, Minutely Pubescent. Stem Erect, 1-2 Dm. Tall, Forking From A Point 3-8 Cm. Above The Base; Leaves Linear Filiform, .8-2 Cm. Long, Acute, With A Stout Midrib, Sessile ; Stipules Lanceolate, Silvery, Acuminate ; Calyx Short-pedicelled, Or Nearly Sessile, 1.5 Mm. Long, Strigose At The Base, ...
Paronyci I Ia Scoparia
Paronyci I Ia Scoparia. Perennial, Rather Slender, The Foliage Minutely Pubescent. Stem Much Branched At The Base, The Branches Tufted, Erect Or Ascending, 2-3 Dm. Tall, Simple Below, Sparingly Forked Above, Roughish ; Leaves Linear-filiform, 1-3 Cm. Long, Acute, Grooved On Either Side Of The Midrib, Serrulate-ciliate, Especially Near The ...
Paspalum Blodgetii
Paspalum Blodgetii Chapman. It Would Seem Best To Maintain The Above Name, Although Per Haps Not The Oldest, For The Plants That Have Been Referred To P. Caespitasuni Fluegge. Chapman's Type Is Preserved In The Her Barium Of Columbia University, So That The Positive Identification Of That Species Is Possible. ...
Paspalum Simpsoni
Paspalum Simpsoni N. Sp. Culms, Upper Sheaths, And Surfaces Of The Leaves Smooth And Glabrous. Culms Erect, Slender, 2-8 Dm. Tall ; Sheaths Loosely Em Bracing The Culm, The Basal Ones Short And Appressed-villuos, The Remainder Longer And Usually Much Exceeded By The Inter Nodes Of The Mature Culms, The ...
Paspalum Villosissimum 11
Paspalum Villosissimum 11. Sp. Whole Plant, Except The Culm And Spikelets, Densely Vilous, Particularly The Lower Sheaths. Culms Erect, Smooth And Glabrous, 5-10 Dm. Tall, From A Thick And More Or Less Branching Rootstock, Extending, When Mature, Much Beyond The Uppermost Sheath, Branching At The Highest Node, The Usually Single ...
Paspalum
Paspalum Bifidu? (a. Bertol.) Panicum Floridanum Trin. Mein. Acad. St. Petersb. (vi.) 3: Pt. 2, 248. 1834. Not Paspalum Floridaimm Mx. 1803. Panicum In:ficium A. Bertol. In Mem. Acad. Sci. Bolog. 2: 598. Pl. 41. F. 2, E-11. 1850. Panicum Alabamcnse Trin.; Steud. Syn. Pl. Gram. 64. 1855. Paspalum Raccmulosum ...
Pedicularis Ctenophora
Pedicularis Ctenophora. Stem From A Thickened Caudex, About 3 Din. High, Glabrous, Strict, Striate ; Leaves Numerous, Especially At The Base, Glabrous, Rather Thickish, Pinnately Divided Into Linear-lanceolate Serrate Segments; Spike About 1 Dm. Long, Rather Loose ; Bracts Broadly Ovate In Outline, Pectinately Divided ; Calyx Gibbous Above, Purple ...
Pedicularis
Pedicularis Stem 3-4 M. High, Simple, Rather Slender, More Or Less Tinged With Dark Purple, Glabrous ; Leaves Pinnate, Glabrous ; Segments Inch Long, Lanceolate, Doubly Serrate ; Spike Short And Dense, 3-6 Cm., Seldom 8 Or 9 Cm. Long ; Bracts Ovate, Acuminate, About Half As Long As The ...
Peronospora Plantaginis 11
Peronospora Plantaginis 11. Sp. Mycelium Parasitic In Well-defined Yellow Areas Of The Leaf, Occupying The Entire Width And A Length Of 1-3 Cm.; Conidiophores Usually Solitary, Long Exserted, Irregularly 5-6 Times Dichotomous ; Ultimate Ramulae Short, Unequal, Recurved, 4-12p Long ; Conidia Narrowly Oval Or Lemon-shaped, Pointed At Each End, ...
Peronospora Sevmourii
Peronospora Sevmourii Burrill N. Sp. Sparse, Forming White Patches Or Lines On Leaves And Stems ; Oospores On Floral Organs. Mycelium Large, Distorted, Haustoria Knob-like ; Conidiophores Slender, Seven' Or Eight Times Dichoto Mous, Branches Flexuous, Spreading, Tips Short Or Of Moderate Length, Subulate ; Conidia Subglobose To Elliptical, Variable, ...
Plus Pungens
Plus Pungens Michx. F. Hist. Arb. Am. 1: 61. P1. S. Isio. I Can Now Report This Most Locally Distributed Of Our Mountain Inhabiting Pines For The Flora Of Georgia, Having Encountered It In The Lower Part Of The Canon At Tallulah Falls. For The Same Rea Son Given In ...
Polemonium Parvifol1um
Polemonium Parvifol1um Nutt. Mss. P. 7lexic0111181 Nutt. Journ. Acad. Phil. 7: 41. 1834. Not Cerv. P. Viscosum Gray, Proc. Am. Acad. 7: 280. Not Nutt. I Have Also Examined Nuttall's Type Of P. Col Lected By Wyeth, On The Flathead River. It Differs From Gray's P. Viscosum In No Respect ...
Polemonium Viscosum
Polemonium Viscosum Nutt. Journ. Acad. Phil. (ii.) 1: 154. 1847. Not Gray. In Describing P. Viscos1t711, Gray* States That It Has Rounded Calyx-lobes, And Gives As Reference: Pl. Gamb. 154 Mainly, Ex Cluding What Relates To The " Elongated Lanceolate Segments Of The Calyx." The Plantae Ganzbellzi Were Published In ...
Polvporcs Earlei Ii
Polvporcs Earlei Ii. Sp. Mesopous; Terrestrial ; Stem 4-5 Cm. Long, 1-1.5 Cm. Or More Thick, Colored Like The Pileus; Pileus 7-12 Cm. Each Way, Cinereous, Slightly Darker Towards The Centre ; Margin Very Thin, Much In Curved In Drying ; Context Soft-fleshy, Grayish, Drying To A Thin Layer; Pores ...
Polygonella Americana F M
Polygonella Americana (f. & M.) Small, Mem. Torr. Club, 5: 141. 1894. Goi1opy11/111 Amc17call11111 F. & M. Mem. Acad. St. Petersb. (vi.) Poly:row/la Erica/tics Engelm. & Gray, Bost. Journ. Nat. Hist. 23o. 1847. Polygonella Jkisncriana Shuttlw.; Meisn. In Dc. Prodr. 14: 81. 1856. Sandy Soil, Missouri To Georgia, South To ...
Polygonella Articulata L
Polygonella Articulata (l.) Meish. Gen. 2 : 228. 1836-43. Polygon/1m Adieu/alum L. Sp. Pl. 363. 1753. Sandy Beaches Along The Atlantic Coast From Maine To Florida And Along The Great Lakes. ...
Polygonella Brachystachya
Polygonella Brachystachya Meisn. In Dc. Prodr. 14: So. 1856. Polygonella Croomii Chapm. Fl. S. States, 387. Is6o. As Far As I Can See, These Two Species Must Be United. Having The Types Of Both At Hand I Cannot Find Any Distinctive Characters And In Addition The Labels Show That Polygonella ...
Polygonella Gracilis
Polygonella Gracilis (nutt.) Meisn. In Dc. Prodr. 14: So. 1856. Polygonum Gracile Nutt. Gen. 1: 256. Isis. Polygonum Setacewm Nutt.; Meisn. In Dc. Prodr. 14 : So. 1856. Sand Hills, South Carolina To Florida And Louisiana. ...
Polygonella Macrophylla 11
Polygonella Macrophylla 11. Sp. Perennial (?), Stoutish, Glaucous, Glabrous. Stem Solitary, Erect, S Dm. Tall, Simple Below, Branched Above ; Leaves Obovate Or Ob Lanceolate, 2-6 Cm. Long (sometimes Shorter On The Branchlets), Obtuse, 3-5-nerved, Leathery, Exceeding The Internodes Except On The Upper Part Of The Stem ; Ocreae Cylindric, ...
Polygonella Polygama
Polygonella Polygama (vent.) A. Gray, Bost. Journ. Nat. Hist. 5 : 231. 1847. Polygonum Polygamum Vent. Hort. Cels, P1. 65. I Soo. Polygonella Parvora Michx. Fl. Bor. Am. 2: 241. 1803. Atraphaxts Dioica Bose; Meisn. In Dc. Prodr. 14: So. 1856• Polygonella Parvifolia Var. Subenemis Meisn. In Dc. Prodr. 14: ...
Polygonum Austinae
Polygonum Austinae Greene, Bull. Cal. Acad. 2 212. This Little Interesting Polygonum Was Collected On The Side Of One Of The Highest Peaks Of The Crazy Mountains, September S, 1896, At An Altitude Of 800o Feet. ...
Polygonum Engelmannii
Polygonum Engelmannii Greene, Bull. Cal. Acad. 1: 126. 1884. This Has Hitherto Only Been Collected In The Higher Mountains Of Colorado. It Is Not Uncommon In Central Montana At An Alti Tude Of 6000 Feet Or More. Cottonwood Creek, July 3o, 1896, Flodman, No. 400. Sweet Grass Caiion, Crazy Mountains, ...
Polyporus Decurrens
Polyporus Decurrens N. Sp. Mesopous; Terrestrial ; Pileus Nearly Circular, 5 Cm. In Diameter, Plane Or Slightly Depressed At The Centre, Brown Or Bay-colored, Covered With A Thin Crust Which Is Glabrous Except Where It Is Raised At Certain Points To Simulate, When Dried, An Imbricated Sur Face ; Pores ...
Polyporus Flavo Squamosus
Polyporus Flavo-squamosus N. Sp. Pleuropous ; Terrestrial ; Stem 7-8 Cm. Long, 4-5 Cm. Thick, Slightly Flattened, Irregularly Roughened, Colored Like The Pileus ; Pileus 15 Cm. Each Way, Yellowish, With A Slight Tinge Of Greenish ; Covered With Rather Small Floccose Imbricate Scales, Which Form A Very Thin Fragile ...
Polyporus Irregular Is
Polyporus Irregular Is N. Sp. Pileus Irregular, More Or Less Branching, Brownish, Paler To Wards The Margin, Uneven, Subtomentose, With A Thin Imperfect Crust, The Under Layer Of Which Is Darker Colored, Forming A Deli Cate Brown Line In Section ; 4-6 Cm. Long, 3-4 Cm. Wide, The Margin Usually ...
Polyporus Meliae
Polyporus Meliae N. Sp. Pileus Convex, Dirty White, Subtomentose, Anoderm, 5-8 Cm. In Diameter, Occasionally Coalescing ; Margin Obtuse, Sometimes Extending Nearly Or Quite Around The Pores; Cortex Floccose Corky, Whitish ; Pores Cream White, Becoming Darker With Age, More Or Less Rirnose, 5-6 Mm. Deep, Minute (about 0.2 Mm.), ...
Polyporus Retipes
Polyporus Retipes N. Sp. Terrestrial ; Stem Excentric, 4-6 Cm. Long, 2 Cm Or More Thick, Yellowish-white Towards The Base ; Pileus 6-15 Cm. Each Way, Brown, Appressed Tomentose, Finely Areolate-rimose So As To Appear Finely Mottled ; Context Fleshy, Rather Thick (2 Cm. Or More) Be Coming Quite Thin ...
Potent I Lla Pseudorupestris
Potent I Lla Pseudorupestris N. Sp. (?) Potentiila Rupestris Presl, Epim. Bat. 198. 1849. Not L. Potentiila Glandulosa Nevadensis Wats. Bot. Cal. I : 178. In Part. 1876. Not P. Nevadensis Boiss. Stem Erect, Slender, Striate, 2-5 Dm. High, Branched, With Slen Der Ascending Branches, Sparingly Glandular-villous. Stipules Ovate, More ...
Potentilla Anii3igens
Potentilla Anii3igens Greene, Erythea, T : 4. 1893. It Is Strange That This Very Marked Species Should Not Have Been Described Before L893. It Was Collected By Hall And Har Bour In 1862, Wm. A. Bell In 1867 And•geo. Vascy In 1881. The First Specimens Were Included By Dr. Gray ...
Potentilla Anserina Concolor
Potentilla Anserina Concolor Ser. In Dc. Prod. 2 : 582. 1825. It Differs From The Species In The Leaves, Which Are Silky White On Both The Upper And Lower Surfaces. In America It Is Confined To The Rocky Mountain Region From Mackenzie River To New Mexico, California And Alaska. ...
Potentilla Anserina Grandis
Potentilla Anserina Grandis Torr & Gray, Fl. N. Am. I : 444. A Luxuriant Form Growing Among Grass, With Larger, Erect Or Ascending Leaves, Sometimes One Foot Long. It Is Common On The Pacific Coast From California To Alaska, But Also Collected In Montana, Newfoundland And Greenland. ...
Potentilla Anserina L
Potentilla Anserina L. Sp. Pl. 495. 1753. This Well Known Species Is Found In The Colder Part Of The North Temperate And The Arctic Zones Of Both Hemispheres, Ex Tending In North America As Far South As New Jersey And Ne Braska, And In The Mountains To New Mexico. The ...
Potentilla Argentea L
Potentilla Argentea L. Sp. P1., 497. P. Awentca Is One Of The Easiest To Identify, By Its Small Flowers, Deeply Dissected Leaves, Which Are White-tomentose, Especially Be Neath, And Have Revolute Margins. It Is A Native Of Europe And Asia, As Well As Of America. In This Country It Extends ...
Potentilla Atrorubens
Potentilla Atrorubens. Potent/i/a Thurber/ Rothrock, \vheeler Surv. 4 : 113. (mainly.) 1878. Stem 4-7 Dm. High, Finely Pubescent And With Scattered Long Villous Spreading Or Reflexed Hairs ; Stipules Ovate Or Lanceolate, 1-2 Cm. Long, Often Toothed ; Basal And Lower Stem-leaves Long.. Petioled, Digitately 5-7-foliolate, Glabrous Or Slightly Silky ...
Potentilla Bicrenata Il
Potentilla Bicrenata Il Sp. Low And Simple From An Erect Scaly Rootstock ; Stem Erect, Cm. High, About Equalling The Leaves, 1-3-flowered, Nearly Leafless ; Basal, Leaves On Petioles 3-6 Cm. Long, Digitately 5-foliolate, Silky And Greenish Above, White-tomentose Beneath ; Leaflets I4-2 Cm. Long, Oblong-cuneate, Margins Entire, Except At ...
Potentilla Biflora
Potentilla Biflora Willd.; Schlecht. Mag. Gesel. Nat. Fr. Berlin, 7 : 297. 1813. It Is A Native Of Northeastern Asia, Alaska And The Arctic Coast Of North America, But A Rather Rare Plant. ...
Potentilla Blaschkeana
Potentilla Blaschkeana Turcz ; Lehm. In Otto, Gart. & Blu Menz. 9: 506. 1853. Potentillez Graellic Most Authors, Not Dougl. This Differs From P. Grezeilis In Stouter Habit, Ascending Branches,. Larger Flowers And Broader Leaflets, Which Are Obovate, Deeply Toothed Or Cleft Into Ovate Or Oblong Teeth, Silky And Green ...
Potentilla Breweri Expansa S
Potentilla Breweri Expansa S. Wats. Bot. Cal. I : 179. 1876. Potentilla Plattensis Leucophylla Greene, Erythea, I : 4. 1893. This Resembles P. Plattensis Still More, Having The Open Cyme Of That Species. It Growl Also In Nevada And Is Apparently More Common Than The Species. ...
Potentilla Breweri S
Potentilla Breweri S. Wats. Proc. Am. Acad. 7 : 555. 1873. Paten/ilia Breweri Much Resembles P. Plattensis. It Has The Large Stipules Characteristic Of That Species And Also Essentially The The Same Flowers. The Leaflets Are, However, Broader And Less Di Vided And Densely Silky-villous. In The Typical Form The ...
Potentilla Canadensis L
Potentilla Canadensis L. Sp: P1. 498. 1753. It Is A Very Variable Plant, And Several Species Have Been Pro Posed. What I Take As The Original P. Canacicusis Is A. Less Luxu Riant Form Of What Has Generally Been Known As P. Callaa'ensis Sim Plex (michx.) T. & G. (p. ...
Potentilla Canadensis Pumila
Potentilla Canadensis Pumila (poir.) T. & G. Fl. N. Am. I : 443. 1840. Poteliala P1u1111a Poir. In Lam. Enc. Meth. 5 : 594. 1804. P. Is Common From Maine And North Carolina To Indian Territory And Minnesota. I Have Seen One Specimen Col Lected In Nevada, But This Was ...
Potentilla Candida 11
Potentilla Candida 11. Sp. Potentilla Gracilis Var. Wats. King's Exp. 5 : 88. 1871. Stem Low, 1-2 Dm. High, Densely White Silky-strigose ; Stipules Ovate, Entire, Nearly I Cm. Long ; Leaves On Rather Short Petioles, Densely Silvery Silky On Both Sides, Digitate; Leaflets 7-9, Obovate In Outline, 2-4 Cm. ...
Potentilla Candida
Potentilla Candida Rydberg, Bull. Torr. Club, 24: 6. 1896. A Few Specimens Of This Species Were Collected By Me In 1893, At Deer Lodge, No. 2688, And At Lima, No. 2687. ...
Potentilla Collina
Potentilla Collina Wibel, Prim. Fl Werth., 267. 1799. This Is Another Species That Has Been Collected In The Country At Least Once, Viz., By J. M. Holzinger (no. 3o) At Winona, Minn., In 1887_ It Differs From P. Alwentea, Which It Most Resembles, By Its Prostrate Or Spreading Habit, Less ...
Potentilla Concinna
Potentilla Concinna Richardson, Frank. Journ. 736. 1823. P. Concinna Resembles P. Rrivea In Many Respects, Especially The Variety Quinquefolia, But Is Always More Or Less Prostrate, And Has Broader Petals And Sepals. It Is Very Variable As To The Shape Of The Leaves. In The Typical Form The Leaflets Are ...
Potentilla Convallaria
Potentilla Convallaria N. Sp. Stem Tall, Erect, 4-10 Dm. High, Long•villous But Not Very Dyensel So, Glandular Or Viscid, Especially Above, Branched Above With Long Erect Branches. Stipules Ovate Or Lanceolate, More Or Less Toothed, About T Cm. Long ; Basal Leaves Several, With Villous Petioles 5-10 Cm. Long, Pinnate ...
Potentilla Crinita A
Potentilla Crinita A. Gray, Meni. Am. Acad. 1849: 41. 1849. This Is Of Similar Habit But Easily Distinguished By Its Condu Plicate, Appressed-silky Cuncate Leaflets, Which Are Slightly Crenate At The Apex. P. Crinita Grows On The Dry Plains Of Arizona, New Mexico, Southern Utah And Colorado. ...
Potentilla Decurrens
Potentilla Decurrens (wats.). P. Dissccia Decurrens Wats. Proc. Am. Acad. 7: 557. 1873. This Species Much Resembles The Preceding, Especially The Var. Glaucophylla, But It Is A More Cespitose Plant And Has Smaller And Thicker Leaves With Prominent Veins Beneath. The Leaflets Are Gener Ally Five And The Lower Often ...
Potentilla Dissecta Glaucophylla
Potentilla Dissecta Glaucophylla (lenin.) Wats. Prot. Am. Acad. 7 : 556. 1873. P. Diversifolia Glaucophylla Lehm. Rev. Pot. 73. 1856. Leaves Nearly Glabrous, Glaucous-green And Always Digitate. The Range Is The Same As That Of The Species, But It Is Much More Common Within The United States. ...
Potentilla Dissecta Rubricaulis
Potentilla Dissecta Rubricaulis (lehm.). Rubricaulis Lehm. Nov. Stirp. Pug. 2: 1830. Leaves Somewhat Tomentose Beneath When Young. It May Be A Hybrid Between P. Dis-secta And P. Nivca Or P. Continua, As It Is Rare And Only Found In The Mountains, Where These Species Also Grow. ...
Potentilla Dissecta
Potentilla Dissecta Pursh, Fl. Am. Sept. 355. 18i4. P. Diversifolia Lehm. Nov. Stirp. Pug. 2: 9. 1830. It Would Be Much Better If Lehmann's Name Were Used For This Species, As This, Without Any Doubt, Belongs To It. As To P. Dissecta Pursh, Nobody Seems To Know Absolutely What It ...
Potentilla Drummondii
Potentilla Drummondii Lehm. Nov. Stirp. Pug. 2 : 9. 1830. Watson Included This In P. Dissccia. As He Had Only Compara Tively Poor Specimens, With Few, More Approximate Leaflets, It Was Not Strange That He Did So, Especially With His Tendency Of Uniting Forms Somewhat Related. Had He Had Such ...
Potentilla Effusa
Potentilla Effusa Dougl. ; Lehm. Stirp. Pug. 2 : S. 1830. The Pubescence Is Grayish Or Whitish Tomentose, Not At All Silky ; The Branches Are Rather Divergent And The Bractlets Much Smaller Than The Acuminate Sepals. It Grows On The Dry Plains From New Mexico To Montana, Assiniboia And ...
Potentilla Egedii
Potentilla Egedii Wormsk. Fl. Dan. 9: Fasc. 27. 5. Patentilia Anserina Egedii Torr. & Gray, Fl. N. Am. I : 444. 184.0. Potentilla Anserina Give/dam/lc-a Tratt. Ros. Mon. 4: No. 13. 1824. I Think That This Is A Good Species, Differing From P. Anserzna In The Delicate Habit, The Deeper ...
Potentilla Etomentosa
Potentilla Etomentosa El. Sp. Potentilla Rigia'a Newberry, Pac. R. R. Rep. 6: Part 3. 72. Not Nutt. Potentilla Gracilis Rigida Coville, Cont. U. S. Nat. Herb. 4: 96. 1893. Stem 4-5 Dm. High, Slightly Hairy, Erect, From A Stout Caudex ; Stipules Ovate, Lanceolate, Entire; Leaves On Long Petioles, Digi ...
Potentilla Fastigiata
Potentilla Fastigiata Nutt. ; Torr. S Gray, Fl. N. Am. T : 440. 1840. Gracilic Fasts Iota Wats. Proc. Am. Acad. 7: 557. 1873. This Perhaps Comes Nearest To P. Pulcherrima, Resembling It In The Form Of The Leaflets And The Size Of The Flower, But It Is A Smaller ...
Potentilla Filicaulis
Potentilla Filicaulis (nutt.). Potentilla Effusa Hi/call/is Nutt.; Torr. & Gray, Fl. N. Am. I : 437. 1840. This Is Known From Only Two Fragmentary Specimens, One, The Original Of Nuttall, In The Torrey Herbarium At Columbia Univer Sity, The Othf.r Collected By Dr. J. M. Coulter, In 1872, Near Fort ...
Potentilla Flabelliform Is Ctenoph
Potentilla Flabelliform Is Ctenoph Ora N. V. Stem Stout ; Leaflets Less Deeply Divided Into Somewhat Broader Divisions, Which Are Not At All Revolute. Corolla Over 15 Mm. In Diameter, Petals Broadly Obcordate, Much Longer Than The Sepals. Both Forms Are Fairly Common From Wyoming And California To British Columbia ...
Potentilla Flabelliformis
Potentilla Flabelliformis Lehm. Stirp. Pug. 2: 12. 1830. Potentilla Gracdis Fiabelliformis Nutt.; Torr & Gray, Fl. N. Am. I This Stands Nearest To P. Blaschke-az/a, But I Think It Is Without Doubt A Good Species. I Have Had The Opportunity To Watch The Two In The Field And Found Them ...
Potentilla Fruticosa L
Potentilla Fruticosa L. Sp. Pl. 495. 1753. This Is A Native Of The North Temperate Zone, Extending In America From Labrador To Alaska South To New Jersey And Colo Rado. In Mountain Regions The Leaflets Are Narrower With Revolute Margins, And This Form Represents P. Floribunda Pursh, P. Fiwii Cosa ...
Potentilla H1ppiana
Potentilla H1ppiana Lehm. Stirp. Pug. 2: 7. 1830. Potentilla Leucophylla Torr. Ann. Lyc. Nat. Hist. N. Y. 2 : 197. 1827. Not Pallas. Potentilla Leneopkylla Eat. Man. Ed. 5, 344. '1829. The Name Used By Eaton Seems To 'have Been Overlooked Alto Gether. It May Be Claimed That The Name ...
Potentilla Hippiana Propinqua
Potentilla Hippiana Propinqua N. Il Potentilla Drfusa A. Gray, Mem. Am. Acad. 1849: 41. 1849. Not Willd. Po/oar/la Hipplana Pulchemnia S. Wats. Proc. Am. Acad. 555, In Part, 1873. Not P. Pulcherrima Lehm. The Stem Is More Diffuse Or Ascending, Rather Low ; The Leaflets Are More Appfoximatc And More ...
Potentilla Inclinata
Potentilla Inclinata Vill. Hist. Pi. Delph. 3 : 567. 1789. P. Canescens Besser, Prim. Fl. Galic. I : 330. 1809. It Much Resembles The Preceding Species, But Differs In A More Slender And Simple Stein And The Grayish Pubescence. The Only Specimens Collected On This Continent That I Have Seen ...
Potentilla Interniedia L
Potentilla Interniedia L. Mant. I: 76. 1767. This Species Very Much Resembles P. Illoweliensis, Especi Ally Var. Nolvegica, And Has In This Country Been Mistaken For It It Differs Mainly In The Mostly 5-foliolate Leaves, The Perennial Root And The Style. The Species Is Sparingly Introduced In The East. Some ...
Potentilla Lem Moni
Potentilla Lem Moni (wats.) Greene, Pittonia, I : 104, 1887. Ivesia Lemmoni Wats. Proc. Am. Acad. 20 : 365. I 885. This Species Should, I Think, Be Placed As An Appendix To This Group. It Has No Relationship To Any Of The Ivesias, And Is A True Potentilla In Every ...
Potentilla Millefolia 11
Potentilla Millefolia 11. Sp. Low, Prostrate Or Spreading ; Stems Numerous From The Caudex, About I Dm. Long, Few-leaved, Only A Little Exceeding The Basal Leaves, Appressed-strigose, Often Sparingly So. Lower Stipules Lanceolate And Scarious And Brown, The Upper Ovate-lanceolate, Acute Or Acuminate, Green, Often 2-3 Cleft. Basal Leaves Pinnate, ...
Potentilla Minutifolia 11
Potentilla Minutifolia 11. Sp. Cespitose, Stems About 1 Dm. Long, Slender, 1-2-leaved, Spar Ingly Silky Or Nearly Glabrous, Slightly Striate ; Stipules Ovate Lanceolate, The Lower Scarious And Brown ; Basal Leaves Very Small, On Slender Petioles 3-5 Cm. Long, Silky-hirsute, Slightly Grayish Beneath, Pinnate, Of Two Pairs Of Leaflets, ...
Potentilla Multijuga
Potentilla Multijuga Lehm. Rev. Pot. 29, 1856. This Species Has Been Lost For About 40 Years. As In The Col Lections Of This Country There Were No Specimens Of A Potent/11a Whose Leaves Resembled Those Of Lehmann's Plate, And As Those Of The Latter Resembled The Leaves Of Horkclia Cuneata, ...
Potentilla Multisecta
Potentilla Multisecta (wats.). P. Multisecta Wats. King's Rep. 5: 86. 1871. This Was Also Included In P. Dissecta By Watson. It Is A Proba Bility That It Is The Original P. Dissecta Pursh, The Description Of Which Fits This, As Well As P. Ranunculus Lange, Better Than The Plant For ...
Potentilla Nemoralis
Potentilla Nemoralis Nestler, Mon. Pot. 28 And 65. 1816. Tormentilla Reptans L. Sp. Pl. 500. 1753. Not Potc,,tilla Reptans L. Also A European Species Which Has Been Collected In Labrador. It Differs From P. Canadensis In The 4-merous Flowers And In The Leaves, Which Are All, Except The Basal Ones, ...
Potentilla Nittali11
Potentilla Ni:ttali.11 Lehm. Ind. Sem. Hort. Bot. Hamb. 1852 : 12. 1852. Potentilla Recta Nutt. Gen. R : 310. Not L. Potent/11a Rigida Nutt. Journ. Acad. Phila. 7: 20. 1834. Not Wall. Potentilla Gracilis Rekida Wats. Proc. Am. Acad. 7 : 557. 1873. The General Habit Of This Species Resembles ...
Potentilla Pinnatisecta
Potentilla Pinnatisecta (wats.) Aven Nelson, Bull. Wy. Exp. St. 28 : 104. 1896. P. Diversifolia Pinnatisecta Wats. King's Rep. 5 : 87 (in Part), 1871. P. Ovina James Macoun, Can. Rec. Sci. The Specimens From Which P. Diversifzaz Junnatzsccla Were De Scribed, Viz : Watson's Nos. 331 And 332 Of ...
Potentilla Plattensis
Potentilla Plattensis Nutt.; Torr. & Gray, Fl. N. Am. I : 439. 1840. The Type Specimens Of Nuttall Have Light Green Leaves With 4-8 Pairs Of Oblong-cuneate Leaflets, Dissected Into Broadly Oblong Obtuse Segments Cm. Long, And A Stem That Is More Or Less As Cending. In The More Common ...
Potentilla Pulciierrima
Potentilla Pulciierrima Lehill. Stirp. Pug. 2 : I0. 1830. Potentilla Hippiana Pulcherthna Wats. Proc. Am. Acad. 7: 555. Yin Part) 1873. As Originally Described, P. Pulcherrinta Lehm. Has Pinnate Leaves With Approximate Leaflets. This Was Undoubtedly The Reason Why Watson United It With P. Diffirsa Gray. As Far As I ...
Potentilla Ramulosa
Potentilla Ramulosa N. Sp. Stems Several From The Thick Perennial Root, About I Dm. High, Scarcely Exceeding The Basal Leaves, More Or Less Hirsute, And Branched. Stipules Lanceolate, The Lower Scarious And Brown, The Upper Herbaceous ; Basal Leaves On Hirsute Petioles 5-8 Cm. Long, Finely Pubescent, In Age Shining ...
Potentilla Recta
Potentilla Recta L Sp. P1. 497. 1753. It Somewhat Resembles P. Nutta In Pubescence And General Habit, But Differs In Being Paler And In Its Large Pale Yellow Petals. It Is Of European Origin And Occurs Sparingly In The Eastern States To The District Of Columbia And To Ohio. The ...
Potentilla Reptans L
Potentilla Reptans L. Sp. Pl. 499. 1753. This European Species Has Been Collected By Martindale In 1876 On Ballast In New Jersey. It Differs From P. Canacleitsis In The Creeping And Rooting Stem, Smaller Leaves And Large, Ovate Or Elliptical Bractlets, Which Exceed The Sepals. ...
Potentilla Rubens
Potentilla Rubens (crantz) Vill. Prosp. Fl. Dauph. 46. 1779. P. Ntaculata Pourr. Act. Toloss. 3 : 326. 1788. This Species Comes Very Near The Frigzdae, Especially To P. Nana And P. Friesiana. From The Latter It Differs Little Except In The Number Of Leaflets. The Leaves Are Much Smaller Than ...
Potentilla Saximontana
Potentilla Saximontana N. Sp. Densely Cespitosc ; Stems Several, 1-3-flowered, Less Than 5 Cm. Long, Silky Pubescent. Basal Leaves Numerous, Pinnate With 2-3 Often Approximate Pairs Of Leaflets, Silky Pubescent And Some What Tomentose Beneath, Short-petioled ; Leaflets Deeply Dissected Into Oblong Obtuse Or Acute Segments; Flowers About I Cm. ...
Potentilla Subjuga
Potentilla Subjuga N. Sp. Tufted From A Perennial Root; Stems Many, 1-3 Dm. High, Silky-villous, Few-leaved, Rather Divergently Branched Above, The Lower Portion Covered With The Brown Scarious Lower Stipules ; Up Per Stipules Green, Ovate, Entire. Basal Leaves Many, Digitately 5 (seldom 3-) Foliolate With An Additional Pair Of ...
Potentilla Subviscosa
Potentilla Subviscosa Greene, Bull. Tom Bot. Club, 8: 97. 1881. Differs From P. Wheeleri In The Leaflets, Which Are Deeply Cleft Into Oblong Divisions, And The Middle One Often 3-divided To Near The Midrib, In The Petals Which Are More Or Less Plainly Un Guiculate And About One-half Longer Than ...
Potentilla Tenerrima
Potentilla Tenerrima N. Sp. Tufted From A Perennial Root; Stems Many, Very Slender, Gener Ally Tinged With Red, I—i Dm. High, Sparingly Strigose ; Stipules Linear, Lanceolate, Acuminate, About I Cm. Long, The Lower Scarious And Brown. Leaves Digitately 3-foliolate, With A Pair Of Smaller Leaf Lets Below, Or, Which ...
Potentilla Thurberi A
Potentilla Thurberi A. Gray, Mem. Am. Acad. (ii.) 5 : 318. 1854. As Described By Gray And Lehmann, P. Thurbeni Should Be Per Fectly Green And Only Slightly Hairy. Such Specimens Have Been Collected As Follows : New Thurber, No. 1107, 1851 ; Dr. Henry, 1854; Dr. Bigelow (mex. Bound. ...
Potentilla Tridentata
Potentilla Tridentata Soland.; Ait. Hort. Kew. 2 : 216. 1789. P. Retusa Retz. Is Generally Cited As A Synonym Of P. Frit/oda/a And Is Much Older, But P. Relusa Is Described As Having Yellow Flow Ers, And In The Figure Of It In Flora Danica The Petals Are Also Yel ...
Potentilla Wheeleri
Potentilla Wheeleri Wats. Proc. Am. Acad. Ii : 148. 1876. The Pubescence Is Quite Densely Silky, And The Typical Form Is Apparently Without Glands. The Leaflets Are Obovate And Crenate At The Rounded Summit, 1-1.5 Cm. Long. The Petals Are Obcor Date, Slightly Contracted At The Base, And A Little ...
Potentilla Wiieeleri Viscidhla
Potentilla Wiieeleri Viscidhla N. V. Subcaespitose, Rather Hirsute With Spreading Hairs, Somewhat Glandular-granuliferous On The Calyx, Pedicel, Etc.; Leaflets Shorter And Broader,\generally Less Than I Cm. Lenvg. The Following Specimens Have Been Seen : Arizona : C. G. Pringle, 1881 ; J. G. Lemmon, No. 158. 1881. California : W. ...
Potentilla
Potentilla Pecrin Isecta N. Sp. Stem Slender, 3-4 Dm. High, Ascending, Finely Strigose Or Hir Sute ; Stipules Ovate, Often Toothed ; Leaves On Slender Petioles, Digitate, Of 5-8 Leaflets, Apressed-silky On Both Sides And Sometimes Slightly Tomentulose Beneath ; Leaflets Obovate, Deeply Pectinately Divided Into Oblong Or Linear Segments ...
Potentillla Gracilis
Potentillla Gracilis Dougl.; Hook. Bot. Mag. Pl. 298,/. 1829. The True P. Gracilis Is A Very Rare Plant And Confined To The Northern Pacific Coast. What Has Gone Under This Name Is Either The Preceding Or The Next Following Species. It Differs From Both In The Narrow Leaflets, Which Are ...
Prunus Gravesii
Prunus Gravesii N. Sp. A Low, Unarmed Shrub; Stems Erect Or Ascending, Reaching A Maximum Height Of 12 Dm., Much Branched, Clothed With A Dark Rough Bark, Leafless Like The Ascending Branches; Twigs And Branchlets Less Leafy, Usually Puberulent ; Leaves Orbicular Or Oval Orbicular, Varying Towards Orbicular-obovate, 2-4 Cm. ...
Quercus Geminata 11
Quercus Geminata 11. Sp. A Shrub Or Small Tree, 2-5 Meters Tall, With A Maximum Trunk Diameter Of About 15 Cm. Leaves Narrowly Oblong, Elliptic, Or Ob Long-oblanceolate, 3-6 Cm. Long, Entire, Obtuse Or Apiculate, Strongly Revolute, Mostly Gradually Narrowed At The Base, Glab Rous And Parchment-like Above, Finely Tomentose ...
Quercus Minima
Quercus Minima (sarg.) Quercus Virens Var. Dentata Chapm. Fl. S. States, 421. 1860. Not O. Dentata Bartr. 1794. Quercus Virgmiana Var. Minima Sarg. Silva N. A. : Tot. 1895. A Low Shrub Forming Wide Patches By The Extensive Spreading Of The Underground Stems. Branches Erect Or Ascending, Less Than I ...
Quercus Nana
Quercus Nana (marsh.) Sarg. Gard. & Forest, 8: 93. 1895. I Was Much Surprised To Find Quantities Of This Scrub Oak On The Summit Of King's And Crowder's Mountains Near The Southern Boundary Of North Carolina In The Summer Of 1894. The Locality Is Within Several Miles Of South Carolina ...
Quercus Rubra L
Quercus Rubra L. Sp. Pl. 996. 1753. The Existence Of The Red Oak In Georgia Was Unknown To Bot Anists Before 1893. In That Year I Discovered A Few Trees Just South Of The North Carolina Boundary, On The Summit Of The Thomas Bald, At An Altitude Of 5200 Feet. ...
Ranunculus Sabini R
Ranunculus Sabini R. Br. In Parry's 1st Voy. App. 264. Specimens Collected Near The Snow On Long L3aldy, Altitude 8000 Ft. In The Little Belt Mountains, Agree Fully With The Descrip Tion Of R. Brown's Species. It Is Not To Be Referred To R Py Maces, Neither Does Brown's Description, ...
Ranunculus Subaffinis
Ranunculus Subaffinis (gray). R. Arizonicus Subaffinis Gray, Proc. Am. Acad. 21: 370. 1886. R. Subsagittatus Subaffinis Greene, Pittonia, 2 : I 10 1890. The Author Agrees Fully With Prof. Greene That Both The Varie Ties Of R. Arizonzcus Ought To Be Removed From That Species, But Is Inclined To Believe ...
Ranunculus Suksdorfii
Ranunculus Suksdorfii Gray, Proc. Am. Acad. 21: 371. The Range Of This Species Is Much Extended Eastward By Its Discovery On The Spanish Peaks At An Altitude Of 8000 Ft., July 14, 1896, Flodman, No. 471. ...