52S TRANS. ST. LOUIS ACAD. SCIENCE. 



8. ASPER, (Miehx.) Kuntb, Gram. i. (ex Eiiura. i.) 



Sandy soil; common. 

 S. HETEKOLEPis, Gray, Man. 1st ed. — Vilfa hctirohpis, Gray, in 

 Ann. Lye. N. Y. iii. (read Dec. 1S34). 

 Prairie; abundant. 

 S. CRYPTANDRUS, (Torr.) Gray, Man. 1st. ed. — Agroslis C7-ijpian- 

 drus, Torr. in Ann. Lye. N, Y. i. 1S24. 

 Sandy hills; infrequent. 

 Agrostis alba, L. Spec. 

 Meadows; common. 

 Var. VULGARIS, (With.) Thurb. in Watson, Bot. Calif, ii. 1880. 

 — A. vulg-ay/i, With. Eng. Bot. 1776. 

 Moist meadows ; common. 

 A. PERENNANS, (Walt.) Tuckemi. Aiuer. Jour. Sci. xlv. 1843. — 

 Cornucoj)i(E? perennans, Walt. Fl. 



A. HYEMAL, (Walt.) B.S.P. Cat.— C'orwitcopzcc hyemalis, Walt. Fl. 

 5 — Agrostis scabra, Willd. Spec. i. 



Prairie, especially in open or barren spots; common. 



CiNNA ARUNDINACEA, L. SpeC. 



Upland woods ; abundant. 

 Calamagrostis Canadensis, (Michx.) Beau v. — Arundo Canaden- 

 sis., Michx. Fl. — Deyeuxia Canadensis, Hook. Arc. PI. 1S62. 

 Sloughs; abundant. 

 Calamovilfa longifolia, (Hook.) Scribn. in Hackel, True Grass- 

 es, 1S90. — Calamagrostis longifolia., Hook. Fl. ii. — Animophila lon- 

 gifolia^ Benth. 



Dry hills; infrequent. 

 BouTELOUA HiKSUTA, Lag. Eleiich. v.? 1816 (ex Kunth, Euum. i.) 

 Dry hills ; infrequent. 



B. cuRTiPENDUL.'i-, (Michx.) Gray, Man. 3d ed. (or earlier?) — CAZo- 



ris curtipendula, Michx. Fl. — B. racemosa. Lag. Varied. Cienc. 

 1805 (ex Kunth, Enum. i.) 

 Prairie ; common. 

 Phragmites vulgaris, (Lam.) B.S.P. Cat. — Arundo vidgaris, 

 Lam. Fl. Franc, iii. 177S. — P. comnuinis^ Trin. Fund. 1S20. 

 Ponds; frequent. 

 Kceleria cristata, (L.) Pers. Syu. i.—Aira cristata, L. Spec. 



Prairie ; abundant. 

 Eatonia obtusata, (Michx.) Gray, Man. 3d ed. 1857 (or earlier). 

 — Aira obtusata, Michx. Fl. 

 Prairie; abundant. 

 E. Pennsylvanica. (Sprang.) Gray, Man. ed. of 1857 (or earlier?), 

 ■ — Aira Pennsylz'anica, Spreng. Act. Petrop. 1810; 

 Sloughs; abundant. 



It also occurs in upland woods, where it is low and slender. 



