TRIAXDRIA MOXOGYNIA 23 



13, S. Briofhobuk, Mx. Panicle supradecompound, large, loose, 

 flaccid, somewhat nodding ; bristles much exserted, capillary, curled, 



Torr. Fl. Up. 60. 



Eriophorum cyperinum. Willd. Sp. 1. />. 313. Ait. Kerw. I. p. 134. 



Muhl.Catal.p.7. 



Trichophorum cvporinum. Pers. Syn. I. p. 69. Muhl. Gram. p. 47. 

 JSTutt. Gen. 1. p. 36. 7*«r/. PAtf. L p. 36. /;//. 5*. Up. 91. Icon, 

 Uff. /. (\*a4, Z.f A. Florid. Cestr. p. 8. XtiuA Ency. p. 50. i?ecfc., 



ffof.j*. 426. 



Wool-bearing Scinrus. Vulgd— Brown Cotton-grass. 



#00/ perennial. Ou/w 3 to 5 feet high, leafy, nodose, obtusely triangular, glab- 

 rous, £ecires lance-linear, about 2 feet long, nerved, margins and midrib scab 

 rous ; sheaths about half the length of the internodes, glabrous. Involucre of 4 long 

 leaves resembling those of the culm, with several intermediate small ones. Pani- 

 rle much divided and proliferous, the upper part pendulous ; branches scabrous, 

 g heath ed at base. Spikelets ovoid, obtuse, in small umbels, or clusters, at the ends 

 of the branches. Glumes lance-oblong, rather acute, membranaceous, sides brown, 

 keel ■ roen. Style 3-cleft, fuscous. Seed white, obo vale -oblong, compressed, keel- 

 ed on the back, acuminate. Bristles 6, five or six times as long as the seed, pro- 

 jecting much beyond the glumes, curled, Light brown. 

 Hub. Swamps, and wet places : common. /V. July. Fr. Aug.— Sept. 



Obs. The spikelets, in some intances, are nearly all pedunculate ; and in others 

 they are sessile, indense terminal clusters, of 3 to G or 8 in a cluster. Thisspecies 

 approaches Eriophorum ; and forms a kind of connecting link between that cenus 

 ami Seirpus. There arc, in the V. States, some 25 or 26 other species of Scirpus, 

 as the genus is here constituted ;— which is nearly in accordance with the sugges- 

 tions of my friend, Prof. Torrey. Several distinct genera have been formed from 

 Scirpus, by modern Botanists, upon characters which are here used to groupe the. 

 species in Sections. 



21. ERIOPHORUM. /.. Xutt. Gen. 55. 

 [Gr. Brian, wool, and/V^ro, to bear; the seeds being invested with wool-like hairs.] 



Glumes membranous, imbricated on all sides. Seed densely invested 

 with long, soft, woolly or cottony hairs. 



1. E. viRGiNicuM, L. Culm nearly terete below, obtusely triangular 

 above ; leaves flat, long ; spikelets clustered, erect, nearly sessile ; invol- 

 ucre 2 to 4-leaved. Beck, Bot. p. 427. Icon, Ell. Sk. Utah. 4. / U 

 Specim. Gray, Gram. l,?£o.89. 



VntGiiriAS Ejuothorum. Vultrd — Cotton Grass. 



^-« 



Hoot perennial, creeping, fibres numerous. Culm 2 to 4 feet high, nodose, leafy, 

 smooth. Leaves few, lance-linear, 12 to IS inches long, margins scabrous. Invo- 

 lucre generally of 2 narrow leaves, 4 to 6 inches Long, and 1 or 2 smaller ones, dis- 

 tinctly serrulate on the margins. Peduncles 3 or -1, short, forming a kind of umbel; 

 spikelets conglomerated, sessile on the peduncle, ovoid and acute when youn<,. 

 Glumes ovate, acute, membranous, nerved, sides brown, keel green, the lower 

 ones empty. Stamen 1, Torr. (2, Mx) Style 3-cleft, somewhat scabrous. Seed 

 Jbrown, obovate-oblong, plano-convex, strongly keeled, slightly acuminate. Hatre 

 ▼ery numerous, finally long and cottony, whitish, with a rusty, ferruginous tinge* 

 Hab> Sphagnous swamps : Mica Slate range : frequent. JF7. July. Fr. Sept. 





