CYPERACEAE. 67 



Spikelets few-several in numerous, rather loose clus- 

 ters. , . L ,..i,.,,.> 6. B.glomerata. 

 Spikelets very numerous In 2-6 very dense, globose 

 heads. 7. B. axillaris. 

 Bristles upwardly barbed. .-. '; • ■ ■! '.i _•■ ,i ' '■ ' •"■'■. • 

 Spikelets very numerous, in 2-6 very ,, dense, globose heads. 



7. JJ. axillaris. 

 Spikelets few-several in rather loose clusters. 

 ■ Achene smooth. .''/,. -, 



Leaves setaceous; achene obovate, shining., 



,8. E. fusca. 

 Leaves narrowly linear, flat; achene broadly oval, dull. 

 !■ ,„ ■ . i , , 9. Bi gracilenta. 



Achene transversely wrinkled, },,■•• 



Leaves flat; spikelets nearly or quite sessile. 



id. B. cymosa. 

 Leaves involute; spikelets distinctly pedicelled. 



11. B. (Forretyaiia. 



1. Rtnchospora cobnioulata (Lam.) A. Gray. M. p. 184. Wet places. 



Summer. 

 Gloucester— Center Square; (He.). . ;: i, << 



la. Rynchospora corniculata macrostachta (Torr.) Britton. M. p. 184. 

 Swamps. Summer. " ,: ; 



Camden — Berlin,' Jos. Leidiy ' (Fu.), Longacoming, Gloucester (C). 

 Gloucester— Near Mickleton (He.), Swedesboro (Li.). Salem— Penn's 

 Grove (C). Oceans- Beaver Dam, Manchester (C.).. 



2. Rvnchospora pallida M.. A. Curtis. M. p. 184. : Bogs inpine barrens. 



Summer. , i ; 



Burlington— Atsion, E. Diffenbaugh (B. C), Bordentown, Batsto, Sha- 

 mong, Quaker Bridge (C). Camden— Merchantville (C). Gloucester — 

 Woodbury (C). Atlantic— "Egg, Harbor (Ke.) (Li.). Ocean— Toms 

 River, Dr. Geo. Smith (Fu.), Forked River (He.) (Wn.). 



3. Rtnchospora alba (L.) Vahl. M. p. 185. Bogs. Summer. 



4. Rtnchospora capillacea Torr. M. p., 186. Bogs. 'Slimmer. 



Lancaster— Dillerville, Porter (Fu.). '',',* 



5. Rtnchospora Knieskernii Carey. M. p. 185. Pine barrens. Summer. 



Burlington — Iron-ore banks below Atsion, : E'. Diffenbaugh (B. C), 

 Quaker Bridge (C). Atlantic— Egg Harbor (He.) (Li.)., Ocean— Paint 

 Hollow, Cassvill© (C). Monmouth— Shark River, Hope "Village .(C). ; 



6. IIyNchospora glomerata (L.) Vahl. M. p. 185. Low grounds. Sum- 



mer. ■ r ."•; ' 



Philadelphia— Bybeiry, Mart. (B. C). Bucks— Rock Hill (Fr.), Bris- 

 tol (P.). Montgomery— (P.). < Delaware— Valley of Darby Creek (B. 

 Sm.), Tinicum l(VP.). Lancaster— (P.).. > Chester^ Lincoln University, 

 Porter (B. C). Lehigh— Laury's (Kr.). ' • -, -' 

 New Jersey— Frequent. 

 New Castle— Thompsons; not common. 



7. Rtnchospora axillaris (Lam.) Britton. M. p. 185. Swamps. Sum- 



mer, t : i . 



Burlington — Quaker Bridge, E. Diffenbaugh (B. 0.), Atsion (C). 

 Atlantic— Hammonton (C). Ocean— Manchester (C). 



