^'*? • GRAMINE^. iCalamagrostis. 



exarata. The plant is smaller, and the leaves shorter ; yet the flowers seem entirely to correspond, except in 

 the absence of one of the valves of the corolla. Dr Torrey calls it A. Drummondi, mst., but remarks its 

 close affinity with A. exarata, Trin. and the one-valved corolla. According to Bongard, the A. exarata 

 IS sometimes furnished with an awn arising from above the middle of the inner valve of the corolla. 



4. A. rubra, L — Wahl Lapp — Trin. Gram. Ic. L 33. 



Hab. Millbank Sound. N. W. Coast America. Mr Tolmie, 



r 

 r 



5. A. canina. Z.— ^. melaleuca. Bong. Veget. de Sitcha, p. 52.—^ Sitcha Bongard. 



Hab. Summits of the Rocky Mountains.— These specimens are scarcely a span high, the glumes purple 

 black, the corolla almost white. Our specimens exhibit no awns from the corolla, a state in which Bongard 

 also found the plant in Sitcha. 



6. A. laxiflora. Bich. App. ed. 2.p. 3 — Kih Trichodine. Mx.—Ph.— Torr. Fl.p, 83. 



Agrostis Michauxii. Trin — Gray, Grain, et Cyp. Part I. n. 17.— Tricbodium decura- 



bus. Mx — T, scabrum. Mnhl. 



Hab. Burnt woods and dry Prairies, from Canada {Goldie\io the Saskatchawan, and to Bear Lake. Br 

 Richardson. Drummond. Common in dry open grounds, near the Pacific Ocean. Douglas. 



VI. Arundinaceje. Kth. 



19. CALAMAGROSTIS. Adans. 



1. C. Canadensis. Beaitv.—Torr. Syn. FL ined. Gray, Gram, et Cyp. Parti, n. 18, 

 (not Nutt.and 7>zw.)— Arundo Canadensis. Mx Calamagrostis Mexicana. Nutt. 



Hab. Marshes and shady woods of the Saskatchawan to the Rocky Mountains. Dr Richardson. Drum^ 

 mond; and to Bear Lake. Dr Uichardson. Kotzebue's Sound. Beechey. 



2. C. coacrtata. Torr. Syn. FL ined. Gray, Grain, et Cyp. Part I. n. 19.— C. Cana- 

 densis. Nutt. Bichard. App. ed. 2. p. 3. Trin. Gram. Ujiifl. p. 227. t. 4./. 14. 



Hab. Woody Country. Dr Richardson. Quebec. Mrs Perceval Nutka and Fort Vancouver, N. W. 

 Coast. Dr Scolder. 



3. C, striata. Nutt.— Bich. App. ed 2. p. 3.— Arundo. Sm. E. Bot. t. 2164.— A. ne- 

 glecta. Ehrh, 



Hab. Saskatchawan to the Rocky Mountains, and to English River. Dr Richardson. Drummond. Ob- 

 servatory Inlet, N, W. Coast. Dr Scouler. 



4. C. purpurascens (Br. in Bichard. App. ed. 2. p. 3.) ; panicula spicata, glumis scabris, 

 perianthii valvula inferiore scabra apice 4-dentata dorso aristata, rudimento plumoso 



villis baseos duplo longiore. Br — Desvauxia. Kth. Gram. t. 77 C. sylvatica. Trin. 



{fide Torr.) 



Hab. Rocky Mountains and Arctic sea-shore. Dr Richardson. Drummond. 



