THE GENUS GAYLUSSACIA IN THE SOUTHERN STATES.
During several seasons I have had ample opportunity to study this imperfectly understood group in the field and have made ob servations on all except one of the species recognized in the ap pended revision. As far as I can see, the forms hitherto con sidered as varieties of other species are abundantly distinct and should be treated as species. Mr. Nash came to the same con clusion during his field-work in Florida. The diagnostic char acters are brought out in the following key and descriptions.
Corolla campanulate or globose campanulate ; leaves destitute of sticky resin. Stems horizontal, underground, the branches erect.
Pubescence consisting of gland-tipped hairs.
Twigs and racemes pilose. r. C. duviosa.
Twigs and racemes bristly-llispid. 2. G. hirtella.
Pubescence consisting of simple non-glandular hairs.
Leaves glaucous, glabrous or nearly so. 3. G. nano.
Leaves densely tornentose, especially beneath. 4. G. tomentosa, Stems erect, the branches spreading.
Leaves leathery, obtuse or retuse; drupe glaucous. 5. G. frondosa.
Leaves thin, acuminate and apiculate ; drupe black. 6. G. ursina.
Corolla conic; leaves sticky with a resinous secretion. 7. G. resinosa.