1892.] NEW YORK ACADEMY OF SCIENCES. 89 



Var. luiuor, n. var. 



Low, 1.5-2.5 dm. high, slender, simple ; clusters 2 or 3, with few spikelets ; 

 leaves very narrow. 



Base of the White Mountains (Tuckerman); Barnstable, Mass. 

 (Deane). 



Var. disciitiens, Clarke, MSS. 



Bristles scabroxis at the apex only, or glabrous throughout. 



Burke Co, N. C. (Buckley); Holmead Swnnip, D. C. (Coville); 

 Chester Co., Penna. (Porter); New Jersey (Halsted). 



The name Schoeiivs capiteUafvs, Michx., Fl. Bor. Anier., i, 36 

 (1803), apparently belongs to one or another of the forms of this 

 species or the next, to which of them I am unable at present to 

 decide. Kunth, however (Enum., ii, 297), refers it to i?. glauca, 

 which is unlikely. 



33. Ryncliospora axillaris (Lam.). 



Sclmvus axillaris, Lam., III., i, 137 (1791). 



IlijTxhospora cepliaUnitlia, A. Gray, Ann. Lye, iii, 218 (1835), 



liynchospora axillaris, Britton, Bull. Torr. Club, xv, 104 (1888). 



Long Island to Florida and Louisiana. 



Var. luici'OCepIiala, n. var. 

 Heads smaller ; spikelets only about 1 mm. wide. 

 Monmouth Co., N. J. (Knieskern), south to Florida and Louisiana. 



* * * * Bristles scabrous upwards ; achenium smooth. 



34. Ryucliospora fiisca (L.). 



Schanus fuscus, L. Sp. PI. Ed. 2, 16(34 (1763). 

 Bynchospora fusca, Link, Handb., 1, 100 (1829). 



New Brunswick to Lake Superior, south to Delaware, mainly 

 near the coast. [Europe.] 



35. Ryiiclioi^pora filifolia, Torr. 

 liynchospora Jilifolia, Torr., Ann. Lye, iii, 366 (1836). 

 North Carolina to Texas. 



36. Ryucliospora fuscoides, Clarke, n. sp. 



liynchospora filifolia, Sauv., Fl. Cub., 180 (1873), not Torrey. 

 li. Jascicularis, var. distans, Chapm., Fl. S. States, 527 (1860). 



Florida (Chapman); Texas (E. Hall, 717). [Cuba, Wright, 

 3783.] 



Vol. XL— 7 



