Muricate ; armed or covered with short spreading points or acute excrescences, like a murex.
Mutic, or muticoua; awnless or pointless; the opposite of mucronate.
Naked ; destitute of the usual covering or appendage, as a stem without leaves or scales, leaves without pubes cence, corolla without a calyx or crown, needs without • a perictrp, a receptacle without chaff or hairs, an umbel without an involucre, etc.
Napifornz ; turnip-shaped.
Natural Order, family, or tribe. An association or group of kindred genera, or of plants which are nearly related in their structure, and most important characters. Nectariferous ; producing honey.
Nectary. That organ, or portion of a flower which secretes honey; a term formerly applied to all disguised os mod ified forms of petals and stamens. • Nerved; having nerves or coarse rib-like fibres.
Nerves. Rib-like fibres (in leaves, etc.) which usually ex tend from the base to, or towards, the apex.
Neuter, or neutral flower. Having neither stamen nor pistil.
Nodding' turning downwards; somewhat drooping. Node. The knot, or solid and often tumid joint of a stem or branch.
Nodose ; having numerous nodes or tumid joints. Normal; according to rule; agreeing with the pattern or type.
Numforn z; nat-like• resembling a nut.
Nucleus. A central body; the seed or kernel of a nut. Nuclides. Little nuts. or nut-like fruit.
Nut. A hard one-celled indehiecent fruit, usually con-, taining a single seed.
Ob ; a preposition which inverts the usual meaning of the word to which it is prefixed.
Obcompresaed akenes (in the compositce). Flattish, with the greatest diameter from right to left, or with the flatted side to the front, orperiphery of the head.
Obconic; inversely conical; I. e. with the point or apex downwards.
Obcorelate ; heart-form, with the sinus at summit, and the narrowed point at the place of insertion.
Obdanceolate ; inversely lanceolate, or with the widest part above the middle, and tapering gradually to the base.
Oblique; a position between horizontal and erect: also descriptive of the base of a leaf, etc., when it is unequal
or produced on one aide.
Oblong; longer than wide, with the aides paallel, or nearly so.' Obovale ; inversely ovate, or with the broadeat eud above. Obovoid ; inversely ovoid.
Obsolete ; indistinct, as if worn out.
Obtuse; blunt, or rounded.
Obversely; turned contrary to the usual position.
Ochrea. A. membranous etipular sheath, embracing the stem like a boot-leg; as in polygonum, etc.
Ochrodeucous ; yellowish-white or cream colored. Octandro us ; having eight stamens.
Odd-pinnate leaf, Having the leaflets in opposite pairs, with a terminal odd one; often termed impari-pinnate. Officinal; uged in, or belonging to, a shop, or medical office.
Oleraceaus ; of the nature or quality of pot-herba. Opaque; not transparent.
Opercular ; opening like a lid that is fixed by a hinge at one side.
Opposite; situated directly against each other, or at the same height, on contrary sides of the stem.
Orbicular; circular and flat, like a coin; the length and breadth equal and the circumference an even circular line : a term applied to leaves, or flatted bodied. (See Terete.) Order. A family or gronp of allied natural objects; a subdivision of a class, embracing kindred genera. Ordinal; belonging to the orders, or to an order.
Ordinal names. The names or the natural orders, or families of plants.
Oraotropous ovele or seed. Straight; not curved, or turned from its original or natural direction.
Oval; longer than broad, with the two ends of equal breadth and curvature, and the sides curving from end to end.
Ovary. The young seed-vessel, or fruit; the hollow por tion at the base of the pistil, containing the ovulee, or bodies destined to become seeds. Ovate ; flat, with the outline of a longitudinal section' of , an egg; a somewhat oval figure but broader near the base. ' Ovate-lancpolate ; lanceolate, inclining to ovate at base. Ovate-oblong; oblong, with an ovate dilatation near the base.
Ovoid; egg-shaped; terete, and swelling near the base; i.e. having the outline of an entire egg.