■& TRIANDRIA. MONOGYNIA. 



§ 5. Spikes numerous, terminal. 1 1 1 Stem leafy. 



S. ATROVIR,E^^"<. Muhl. Stem 3 angled; leaves laiiceolate, keeled; pamcle proliferous: spikelets glomerate 

 jF/. Beginning of July. iPV. m«f. Middle of August. 



Hah. Qwamps, and wet places: South of Barren ridgp : frequent. 3 to4 feet high. 



26. RHYNCHOSPORA. Nutt. Gen. 49. 

 [Gr. ii/t!/nc/iOS, a beak, and iSjJora, seed: descriptive of the generic character.] 



Cal. Scales collected into a spike. Seed beaked with the persistent style, & beset with bristles at the base, 



R. GLOMERATA. Ph. Spikes corymbose-fasciculate, distant, by pairs; stem obtusely 3 angled; leaves linear. 



Synon- Schffinus glomeratus. Muhl. and IVilld. Vulgo — Brown Bog-rush. 



Fl. Last of June, and after. Fr: mat. Beginning of August, and after. 



Hah. Swampy ineadows: frequent. About 2 feet high : glumes chesnut brown. 



Ohs. Mr. Le Contp, of Georgia, stated to me that this was undoubtedly the R. fasciculai^is of the 

 .southern Botanists. Perhaps they are reallj' not distinct. 



27. CYPERUS. Nutt. Gen. 52. 

 [An ancient Greek name, of uncertain etymology.] 



Cal. Scales imbricated in two rows, in compressed spikelets. Style decidnous. 



C FLAVESCENs. Muhl. Stem 3 angled; involucre 3 leaved; umbels compound; spikelets crowded, lanceolate. 

 F«/g-o— Yellow cyperus. Galingale. 



Fl. Middle of August. Fr. mnt. Middle of September. 



Hah. Moist, low grounds: common. 6 to 9 inches high: glumes fuscous. 

 Obs. The glumes, in my speciitiens, are not remarkably acute- See Elliott. 



C- sTRiGosrs. Ell. Spikes oblong, loose; spikelets subulate, expanding; involucre very long. 



Fti/go— Bristle-spiked Galingale. 



Fl. Beginning of August. Fr. mat. Middle of September. 



Hab. Meadows, and low grounds: frequent. 1 to 2 feet high. 



28. DULICHIUM. Nutt. Gen. 53. 



[ 3 



Cax,. scales subulate, distichally sheathing. St^'Ie long, bifid. Ir.volucellate setm long, retror.<!ely scabrous, 



D. SPATHACEUM. Ell. Stem round; leaves pointing in 3 directions; spikelets in axillary racemes. 

 Synon. Cyperi^s spathaceus. 3Iuhl. Scirpus spathaceus. 3Ix. Fit/g-o— Sheathed Galingale. 

 Fl. Middle of July, and after. Fr. mat. Middle of September. 



Hab. Swamps, and low grounds: frequent. 1 to 2 feet high. 



29. TRICHOPHORUM. Nutt. Gen. 54. 

 [Gr. Thrix, trichos, hair, and Phero, to bear; the seeds being surrounded with long hairs.] 



Cal. scales imbricated in sub-ovate spikelets. Seed beset with hairs, mostly 6, long, slightly curled . 



T. CYPERiiv"UM. Ell. Stem obtusely 3 angled, leafj'; panicle supradecompound, somewhat pendulous. 

 Synon. Scirpus eriophorum. Mx. Eriophorum cyperinum . JVilld. P'lt/g-o— Brown Cotton-grass. 

 FL Middle of July. Fr. mat. Beginning of September. 



ira&. Swamps, and wet places: frequent. 3 to 5 feet high. 



Obs. This genus, if it really deserve the distinctioM, seemrs to be the connecting link between Scirpus.- 

 r.nd Eriophorura; but, if rejected, I should incline, with Willdenow, to place it among the species of 

 Eriophorum. 



30. ERIOPHORUM. Nutt. Gen. 55. 

 [Gr. Erion, wool, and Phero, to bear; the seeds being girted with tufts of long wopl.] 



Cal,. scales imbricated on all sides. Seed in a long, dense, woolly involucrum. 



.K Ais'GUSTiFOLnJM. Muhl- Stem 3 angled, leafy jleaves 3 sided, channelled; spikelets briefly pedunculate. 



Vulgo — Cotton-grass. 



Fl. Latter end of May. Fr. mat. Middle of August. 



Hub. Wet meadow grounds: Hayes' bridge, on the Street road: rare. 1 to 2 feet high. 



Obs. Remarkable for its white, woolly heads, v^hen in seed. In my specimens the culms are distincth' 

 M°onoiis. See Pursh, and J3art. Fl. PhiUul. 



