6. A. laxiflora. Rich. App. ed. 2.p. 3 .—Kth_Trichoditfé. Mx.—Ph.— Torr. Fl.p. 83.
r-Agrostis Michâuxii. Trin.—Gmy, Gram, et Cyp. Part I. n. 17—bus. Mx.—-T. scabrum. Muhl. Trichodiom decum-
H ab. Burnt woods and dry Prairies, from Canada ( Goldie),to the Saskatchawan, and to Bear Lake. Dr
Richardson. Drummond. Common in dry open grounds, near the Pacific Ocean. Douglas.
VI. Arundinaceje. Kth.
19. CALAMAGROSTIS. Adans.
]. C. Canadensis. Beauv.—Torr. Syn. FI. ined. Gray, Gram, et Cyp. Part I. n. 18.
(not Nutt, and Trin.)—Arundo Canadensis. ^Mx.-—Calamagrostis Mexican a. Nutt.
H ab. Marshes and shady woods of the Saskatchawan to the Rocky Mountains. Dr Richardson. Drum-
mond; and to Bear Lake. Dr Richardson. Kotzebue’s Sound. Beechey.
2. C. coacrtata. Torr. Syn. FI. ined. Gray, Gram, et Cyp. Part I. n. 19.—C. Canadensis.
Nutt. Richard. App. ed. 2. p. '3. Trin. Gram. XJnifl.p. 227: t. 4,f. 14.
CoHasat.b . DWr oSocdoyu lCero.untry. Dr Richardson. Quebec. Mrs Perceval. Nutka and Fort Vancouver, N. W.
gle3c.t aC. .E shtrrihct.a. Nutt.—Rich. App. ed. 2. p. 3—Arundo. Sm. E . B o t.t. 2164.—A. ne-
H ab. Saskatchawan to the Rocky Mountains, and to English River. Dr Richardson. Drummond. Observatory
Inlet, N. W. Coast. Dr Scouler.
4. C. purpurascens (Br. in Richard. App. ed. 2. p. 3.) ; panicula spicata, glumis scabris,
perianthii valvula inferiore scabra apice 4-dentata dorso aristata, rudimento plumoso
villis baseos duplo longiore. B r— Desvauxia. Kth. Gram. t. 77__C. sylvatica. Trin.
Ifide Torr.)
H ab. Rocky Mountains and Arctic sea-shore. Dr Richardson. Drummond.
Phragmites.]• GRAMINEÆ. 241
5. C. longifolia; lsevissiraa, foliis anguste linearibus longissime aeuminatissimis, panicula
erecta stricta subspicata, glumte valvis inaequalibus perianthium acutum muticum superantibus,
villis perianthio brevioribus.
Hab. Saskatchawan. Drummond.—A species remarkable for the great length of its leaves, exceeding the
culm, tapering into a long, slender apex, and for the pale, very smooth, giossy flowers. The base of the culm
sends out creeping shoots.
6. C. strigosa (Bong.); glumis sequalibus lineari-lanceolatis acuminatis perianthio ^
longioribus, valvula superiori inferiore £ breviori, pilis perianthio paulo minoribus (inter-
dum longitudine valvulas superioris), seta infra medium (aut medio) exserta valvulam
inferiorem sequante, processu barbato. Bong. Veget. de Sitcha, p. 53.—Arundo strigosa ? Wahl.— R. et S.
H ab. Sitcha. Bongard.
7. C. Aleutica (Trin.); glumis subasqualibus lanceolatis acutis perianthium a?quantibus
valvulis asqualibus, pilis perianthio f et ultra brevioribus, seta pi. min. medio exserta
valvula breviori, processu barbato, pilis perianthio 2-3-4-plo brevioribus. Bong. Veget. de Sitcha, p. 53.
H ab. Unalaschka. Chamisso. Sitcha. Bongard.—Very near C. coarctata. Torr.
20. AMMOPHILA. Host.
1. A. arundinacea, Host, Gram. 4. p. 24. t. 41.—Arundo arenaria, L.—E. Bot. t. 520.
Mx.—Psamma, Beauv.— Torr. FI. p. 95.—Calamagrostis, Roth.—Gray, Gram, et Cyp. Part I. n. 21.
H ab. Canada. Ph.
21. GRAPHEPHORUM. Desv.
1. G. melicoides, Beauv. Agr. 77. t. 15. f 8.—Aira. Mx.—Ph.—Triodia, Spr.
H ab. Canada. Mx.
22. PHRAGMITES. Trin.
1. P . communis, Trin.—Kth.— Torr. F l.p. 103.—Arundo Phragmites, L .—E. Bot. t. 401.
H ab, Canada. Ph. Saskatchawan. Dr Richardson. Drummond. Columbia. Douglas.
VOL. II.