CIPEBACEAE. 67 



Spikelets few-several in numerous, rather loose clus- 

 ters. 6. B. glomerata. 

 Spikelets very numerous in 2-6 very dense, globose 

 heads. 7. B. axillaris. 

 Bristles up^vardly barbed. 



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



7. B. axillaris. 

 Spikelets few-several in rather loose clusters. 



Achene smooth. 



Leaves setaceous; achene obovate, shining. 



8. B. fusca. 

 Leaves narrowly linear, f3at; achene broadly oval, dull. 



9. B. gracilenta. 

 Achene transversely wrinkled. 



Leaves flat ; spikelets nearly or quite sessile. 



10. B. cymosa. 

 Leaves involute ; spikelets distinctly pedicelled. 



11. B. Torreyana. 



1. Rynchospora corniculata (Lam.) A. Gray. M. p. 184. Wet places. 



Summer. 

 Gloucester— Center Square (He.). 

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

 Swamps. Summer. 

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

 Gloucester— y^enT Mickleton (He.), Swedesboro (Li.). Salem— Fenn's 

 Grove (C). Oceatt— Beaver Dam, Manchester (C). 



2. Rynchospora pallida M. A. Curtis. M. p. 184. Bogs in pine barrens. 



Summer. 

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

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

 Woodbury (C). Atlantic— Egg Harbor (Ke.) (Li.). Ocean — Toma 

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



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



4. Rynchospora capillacea Torr. M. p. 185. Bogs. Summer. 



La7icas/er— Dillerville, Porter (Fu.). 



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



Burlington — Iron-ore banks below Atsion, E. Difenhaugli (B. C), 

 Quaker Bridge (C). ^tianfic— Egg Harbor (He.) (Li.). Ocean— Paint 

 Hollow, Cassville (C). Monmouth— Shark River, Hope Village (C). 



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



mer. 



Philadelphia— Byherry, Mart. (B. C). J5w-cAs— Rock Hill (Fr.), Bris- 

 tol (P.). Montgomery— (F.). Delaicare—YaWej of Darby Creek (B. 

 Sm.), Tinicum (VP.). Lancaster— (P.). Chester— liineoln University, 

 Porter (B.C.). Le7uV//i— Laury 's (Kr.). 



New Jersey — Frequent. 



New Castle — Thompsons; not common. 



7. Rynchospora axill.\ris (Lam.) Britton. M. p. 185. Swamps. Sum- 



mer. 

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

 Atlayitic-'Kammonton (C). Ocean— Manchester (C). 



