AUKOSTIDE.E. 355 



Ed. 1:582 (1S48). AmniojiJu'Ia brevipih's Bcnth. Vase}!, ..t. Or. 

 U. S. 52 (IS85). 



Culms nitliur slender, '.»()-l','0 cm. lii,L!:li. Slioutlis shorter tluiii 

 the iiiteniodes; bltidos very narrow, nearly Hat or involute, attenu- 

 ate. Panicle pyramidal, jjurple. S])ikelet!:5 3.5-4.5 mm. lon^: 

 emi)tyglumori ovate, mueronate, first 3-".*. 5 mm. lonir; lloral iilume 

 a little shorter than the second: palea e(|ual to its glume or a little 

 longer, hairs about 1 mm. long. 



I'ennsylvauia (Philadelphia), ./. B. Jh'inton, 



Sandy swamps, pine-barrens of New Jersey. 



2. C. Curtissii N'asey, Contrib. I'. S. ^at. Herb. 3:85 (1802). 

 AmiiiDpltiht CV/;7/.s-.s'// Vasey, Bull. Torr. ("lub. 11:7 (1884). 



Culms single or in tul'ts. 1)0-180 em. high, base of cnlmselotlied 

 with the rigid imbricated sheaths. Sheaths 3-4 in number, distant, 

 shorter than the internodes; ligule obscure, a ciliate ring; blades 

 very smooth, firm, 10-30 cm. long, the ai)ex setaceous. Taniclo 

 12-30 cm. long; rays close, single or in pairs, the lower 4-10 cm. 

 long. 3-5 cm. distant, thiidy ilowered. Spikelets on sliort jiedicels 

 4-5 mm. long; empty glumes ovate, acute or ovate-lanceolate, first 

 3-4 mm. long, second 4.5-5 mm. long; fioral glume ovate-lanceo- 

 late, 5 mm. long, thitdy clothed with sliort hairs 1-2 mm. long; 

 palea about 4 mm. long, contaiiiiug a ft!W short hairs; basal hairs 

 few, one- third as long as the fioret. 



Dr. Vasey says: "It ditVers froni .1. hrevipUis Ik'nth. in its 

 greater size, its longer involute leaves, and its much longer and 

 mirrower panicle, with branches subdivided and llowering nearly to 

 the base; the latter has a ring of very short hairs at the base of the 

 outer glumes besides those at the base of the flowers." 



Florida, A. 11. Cnrtiss. 



3. C. longifolia (Hook.). Hack. True Crasses, 113 (180O). 

 Ammnphihi loin/ifoh'a Vasey, Cat. (Jr. V. S. 71 (1885). (kdama- 

 (/ro-sfis loiu/ifoJia Hook. Fl. lior. Am. 2:241 (i,40). 



Culms stout, GO-180 cm. high. Sheaths longer than the inter- 

 nodes, smooth or more or less clothed with soft wool; blades vciv 

 long and i -row, involute, ])oints attenuate. I'iinicle variahU'. 

 10-40 cm. long, at first rather narrow and close, but later spread- 



