GRASSES. 335 
Erianthus brevibarbis Michx. Fl. Bor. Am. 1:55. 1803. 
SHORT-BEARDED PLUME GRass. 
Erianthus alopecuroides var. brevibarbis Chap. Fl. 583. 1860. 
E. saccharoides subspec. brevibarbis Hackel in DC. Monogr. 6:131. 1889. 
Ell. Sk, 1:39. Gray, Man. ed. 6, 637. Coulter, Contr. Nat. Herb. 2:493. Scrib- 
ner, Grass. Tenn. 18, ¢. 7, f. 8. 
Carolinian and Louisianian areas. Virginia and Tennessee, south to Florida and 
southeastern Texas, 
ALABAMA: Coast plain. Low sandy borders of pine-barren streams. Mobile 
County. Baldwin County, Josephine. Not rare. September to October. 
Type locality: ‘Hab. in collibus Tennassée et Carolinac.” 
Herb. Geol. Surv. Herb. Mohr. 
Hrianthus strictus Bald.; Ell. Sk. 1:39. 1816. CLOSE-PANICLED ERIANTHUS. 
ee Fl. 583. Coulter, Contr. Nat. Herb. 2:494. Scribner, Grass. Tenn. 18, 
£1, f. 2. 
Carolinian and Louisianian areas. Georgia, southeastern Tennessee, and from 
Florida to Texas. 
ALABAMA: Lower Pine belt. Margins of swamps. Mobile County, Pierce’s Land- 
ing, Mount Vernon. Baldwin County, Stockton. September to October. Not 
infrequent. 
Type locality: ‘‘Grows near Savannah.” 
Herb. Geol. Surv. Herb. Mohr. 
Brianthus smallii Nash, Bull. N. Y. Bot. Gard. 1:429. 1900. 
Tall, densely tufted perennial, 4 to 74 feet high; nodes pubescént with long 
appressed hairs, summit of the culm and floral axis copiously appressed- pubescent ; 
sheaths nearly glabrous; ligule scarious, ciliolate at the apex; leaves 4 to 7 inches 
long, $ to #inch wide, rough; panicle 8 inches and over long and 1} to 24 inches wide, 
its branches erect; spikelets crowded, about equaling the basal hairs; outer scales 
pilose with long hairs; fourth scale two-toothed at the apex, teeth long-subulate, 
the awn { to a little over an inch long, the included portion long and tightly spiral, 
the remainder loosely spiral. 
Carolinian and Louisianian areas. Tennessee, Georgia, Florida, and Mississippi. 
ALABAMA: Central Prairie region. Low grounds. Montgomery (G. McCarthy, 
August, 1888). 
Related to £. contortus Ell., but clearly distinct. In L. contortus the summit of the 
culm and axis of the panicle are glabrous and the spikelets are considerably smaller. 
Type locality: ‘‘Type collected by Dr. J.K.Small * * * on Stone Mountain, 
Dekalb County, Ga., Sept. 6 to 12, 1894.” 
MANISURIS L. Mant. 2:164. 1771. 
(RoTTBOELLIA L. f. Diss. Nov. Gram. 23. 1779.) 
About 33 species, warmer temperate and tropical regions in both hemipheres. 
Atlantic North America, 3 species. Perennials. 
Manisuris rugosa chapmani (Hackel) Scribner, Mem. Torr. Club, 5:28. 1894. 
WRINKLED MANISURIS. 
Rottboellia rugosa Chap. Fl. 575. 1860. Not Nutt. 
R. rugosa chapmani Hackel, in DC. Monogr. Phan. 6:308. 1889. 
Chap. Fl. 575. 
Louisianian area. North Carolina to Florida and Alabama. 
ALABAMA: Lower Pine region. Coast plain. Borders of sandy, pine-barren 
swamps. Mobile County, Kelly’s pond. Baldwin County, Pierce’s Landing. Sep- 
tember to October. : ; 
Type locality: ‘‘Pine-barren swamps and ponds, Florida to North Carolina.” 
Herb. Geol. Surv. Herb. Mohr. 
Manisuris corrugata (Bald.) Mohr. Bull. Torr. Club, 24:21. 1897. 
CORRUGATED MANISURIS. 
Rottboellia corrugata Bald. Am. Journ. Sci. 1:355. 1819. 
Chap. FI. 579. Coulter, Contr. Nat. Herb. 2: 492. 
Louisianian area. Georgia and Florida to Texas. 
ALABAMA: Coast plain. Low damp pine barrens. Mobile County, Dog River, 
pine flats. August to September. Frequent. ; 
Type locality: ‘‘ Discovered between St. Mary’s and Jefferson, in Camden County, 
Georgia, on the 13th of July, 1813.” 
Herb. Geol. Surv. Herb. Mohr. 
