(2778.) D. aequivalvis, Benth.& Hook., Gen. Plant III., 1153.

A. aequivalvis, Trin. Agrost. II., 116; Macoun, Cat. No. 2128, b.

A. canina, var. aequivalvis, Trin.; Bong. Veg. Sitch. 171.

A. canina, Linn., . Melaleuca, Bong.; Hook., Fl. II., 240. (?)

A. Hillebrandii, Thurber; Boland. Trans. Calif. Agri. Soc. 136, (1864.)

Rather common on the grassy beds of snow-slides, at Roger's Pass, Selkirk Mountains, B.C. (Macoun.) Sitka, and Ounalashka. (Rothr. Alask.) Summits of the Rocky Mountains. (Hooker, Fl.)

(2779.) D. Aleutica, Vasey, Cat. Grasses, U. S.50, (1885.)

Calamagrostis Aleutica, Trin.; Hook., Fl. II., 241; Macoun, Cat. No. 2140. C. albicans, Buckl. Proced. Acad. Philad. 92, (1862.)

Crevices of rocks along the west coast of Vancouver Island and in marshes, covered at high tide, on the Alberni Canal. (Macoun.) Queen Charlotte Islands. (Dawson.) Sitka. (Barclay.) Ounalashka, and Sitka. (Rothr. Alask. & Hooker, Fl.) Ounalashka, 1885. (Mr. S. Applegate.)

(2780.) D. breviaristata, Vasey, Bull. Torr. Club XV, 48, N. Sp.

"Culm 2-3 feet high, radical leaves very long, panicle 4 inches long, narrow and loose, branches unequal, verticills numerous, the longer ones about 1 inch long, erect, flowering, mostly to the base - empty glume 2 lines long, ve y narrow, acute, membranaceous, scabrous on the keel; flowering glumes as long as the empty ones, and about the same texture, lanceolate, acutish, 3 nerved, smoothish; awn from about the middle, shorter than the fl. gl. or sometimes nearly absent; hairs rather sparse and fine, 1/3 to 1/2 as long as the fl. gl., those of the pedicel scanty but longer; palet as long as its glume, acute."

In crevices of rocks amongst the islands in the outer part of Barclay Sound, near Cape Beale, Vancouver Island. (Macoun.)

(2781.) D. Canadensis, Hooker, Arc. Pl 307 & 308.

Calamagrostis Canadensis, Beauv.; Hook., Fl II., 240; Macoun, Cat.

No. 2135. C. Mexicana, Nutt. Gen. I., 46. C. Purshii, Kunth, Enum. I., 208.

Arundo Canadensis, Michx., Fl. I., 73; Pursh, Fl. I., 86. A. cinnoides, Muhl. Gram. 187. A. agrostoides, Pursh, Fl. I., 86.

An abundant and valuable species extending from Newfoundland and the Atlantic provinces throughout the whole northern and central forest region, and Rocky Mountains and British Columbia, to the islands on the Pacific coast and north to Alaska.

(2782.) D. confinis, Kunth; Vasey, Grasses of U. S. 28, (1883.)

Calamagrostis confinis, Nutt. Gen. I., 46.

C. inexpansa, Gray, Gram. & Cyp. I., No. 20.

Arundo confinis, Willd. Enum. I., 127.

Chiefly included by collectors in D. neglecta or Calamagrostis stricta. Vicinity of Hamilton, Ont. (Logie.) Rocky woods, Elziver,

North Hastings, Ont.; woods along the North Saskatchewan, above

Fort Carleton, and at Edmonton, lat. 53°; on gravel at Kananaskis station, Rocky Mountains; shores of Home Lake, and Cameron Lake,

Vancouver Island. (Macoun,)

(2783.) D. crassiglumis, Vasey, Cat. Grasses, U. S., 50, (1885.)

Calamagrostis crassiglumis, Thurber, Bot. Calif. II., 281. Nimpkish or Karmutzen Lake, Vancouver Island. (Dawson.) In gravel along the shores of Home Lake, near Qualicum, Vancouver Island. (Macoun.)

(2784.) D. deschampsioides, Vasey, Cat. Grasses U. S. 50, (1885.)

Calamagrostis deschampsioides, Trin. Spec. Gram. III., 354. California to Alaska. ( Vasey.) We know nothing of this species.

(2785.) D. Langsdorffii, Kunth, Gram. I., 77.

Calamagrostis Langsdorffii, Trin.; Macoun, Cat. No. 2136.

C. Oregonensis, Buckl. Proced. Philad. Acad., 92, in part, (1862.)

Magdalen Islands, Gulf of St. Lawrence. (McKay.) Low grounds at Whycocomagh, Cape Breton. (Macoun.) Campbellton, N.B. (Chalmers.) Thunder River, Q. (St. Cyr.) Salt Lake, Anticosti; Current River, near Port Arthur, Lake Superior. (Macoun.) Port Arthur. (Burgess.) Fort George, James Bay. (J. M. Macoun.) North end of

Lake Winnipeg, and west coast of Hudson Bay. (R. Bell.) Upper Nachacco River, B.C. (Dawson.) Shores of Shawnigan Lake, Vancouver Island. (Macoun.) Kotzebue Sound. (Rothr. Alask.) Queen Charlotte Islands. (Dawson.) Fort Wrangel, Alaska. (Meehan.) Ounalashka, 1885. (Mr. S. Applegate.)

(2786.) D. Lapponica, Kunth; Vasey, Cat. Grasses U. S. 51, (1885.)

Calamagrostis Lapponica, Gray, Man. Ed. V., 682; Macoun, Cat. No. 2141. Isle Royal, Lake Superior. (Prof. T. C. Porter.) Salt Lake, Anti-costi; Otter Head, and Pic River, Lake Superior; Flat Bock Portage, Nipigon River, Ont. (Macoun.)

(2787.) D. Macouniana, Vasey, Coulter's Bot.Gaz.,X., 297, N.Sp.

"Culm 60 to 90 cm. high, slender, leafy; sheaths mostly as long as as the internodes, smoothish; ligule about 2 mm. long, lacerate leaf blades narrow, 15 to 25 cm. long, attenuated to a filiform point; panicle 10 to 12 cm, long, narrow, open, 2 to 4 cm. in width, branches mostly in fives, approximate, slender, erect; spikelets somewhat crowded on the upper part of the branches, 2 mm. long; empty glumes nearly equal, purplish, lanceolate, acute, finely scabrous on the back; flowering glumes 1 1/2 mm. long, ovate-oblong, somewhat truncate and 2-lobed at the apex, the lobes finely denticulate; awn above the middle of the glume, straight, reaching to the apex; palet about one-third shorter than its glume, bifid, denticulate at apex; hairs copious, as long as the flowering glume. The panicle resembles that of Agrostis vulgaris, and the flowers are smaller than those of any other of our species." - (Dr. Geo. Vasey in Bot. Gazette, Vol. X., page 297.) Black River, Lake Winnipeg, 1884; Souris Plain, Man. 1883. (J. M. Macoun.)

(2788.) D. neglecta, Kunth, Gram. I., 76.

D. stricta, Coulter, Man. Ry. Mount. PL, 414.

Calamagrostis coarctata, Hook., Fl. II., 240.

C. stricta, Beauy.; Hook., Fl. II., 240; Macoun, Cat. No. 2138. Borders of rivers and lakes in the east, and in swampy meadows on the prairie. Amherst Island, Magdalen Islands. (J. Richardson.) Shediac, N.B. (Fowler, Cat.) Becscie River, Anticosti; and at Cape Rosier, Gasps' coast, Q. (Macoun.) Ellis Bay, Anticosti. (St. Cyr.) Shore of Lake Huron, at Chicken Bay. (Macoun.) Lake Mistassini, N.E.T. (J. M. Macoun.) York Factory, Hudson Bay. (R. Bell.) Abundant in wet prairie throughout Manitoba and the northern prairie region, and north-westerly through the wooded country to the Peace River; common along slopes and by ponds through the Rocky and Selkirk mountains, and in northern British Columbia, (Macoun.) Pelly Banks, lat. 62°; and confluence of Lewes and Pelly rivers, lat. 62° 47', N.W.T. (Dawson.) Kotzebue Sound. (Rothr. Alask.) Quebec; Saskatchewan and English rivers, through the wooded country to the Rocky Mountains; Nootka, and Observatory Inlet, Pacific coast. (Hooker, Fl.) Red River, Man., 1827. (Douglas.)

Var. Americanum, Vasey. (MS.) N. Var.

This is a very beautiful form, stouter and much lighter colored than the species. Rather common at Donald in the Columbia Valley, 1885. (Macoun.)

Var. brevifolia, Vasey. (MS.) N. Var.

This variety, as its name indicates, has short involute leaves and a narrow panicle. It is a little over a foot in height and may be only a depauperate form of the species. (Macoun.) Pelly Banks, lat. 62°, N.W.T., 1887. (Dawson.) Damp slopes, near McLeod's Lake, lat. 55°, B.C. (Macoun.)

Var. robusta, Vasey. (MS.) N. Var.

A very tall and stout variety growing in water or along the borders of marshes throughout Manitoba and the Saskatchewan region; Hand Hills, Alberta. (Macoun.) Souris Plain, Man. (J. M. Macoun.)

(2789.) D. Pickeringii, Vasey, Cat. Grasses, U. S. 51, (1885.)

Calamagroslis Pickeringii, Gray, Man. Ed. V., 616; Macoun, Cat. No. 2142.

The only known station for this species in Canada is in the wet meadows surrounding Louisburg, Cape Breton, 1883. (Macoun & Burgess.)

(2790.) D. Porteri, Vasey, Cat. Grasses, U. S. 51, (1885.)

Calamagrostis Porteri, Gray, Man. Ed. Y., 615 Specimens referred here by Dr. Vasey were collected on the slopes of the mountains at the entrance to Bow River Pass, in the Rocky Mountains, 1879. Better specimens are needed to settle the identity of the species. (Macoun.)

(2791.) D. purpurascens, Kunth; Vasey, Cat. Grasses U.S. 51,

(1885.)

Calamagroslis purpurascens, R. Br.; Hook., Fl. II., 240. Arctic sea-shore. (Hooker, Fl.) Fort Yukon. (Rothr. Alask.) Greenland. (Lange.) Dr. Vasey, writes me that Torrey thought this was D. sylvatica. I am of the same opinion, as the purple glumes are a very poor character.

(2792.) D. rubescens, Vasey, Cat. Grasses, U. S. 51, (1885.)

Calarnagrostis rubescens, Buckl. Proced. Phil. Acad., 92, (1862.) Quite common on burnt slopes in the Rocky Mountains, from Banff westward to Roger's Pass, Selkirk Mountains, B.C. (Macoun.)

(2793.) D. strigosa, Kunth; Vasey, Cat. Grasses U.S. 51, (1885.)

Calamagrostns strigosa, Bong.; Hook., Fl. II., 241. Sitka. (Bongard vide Hooker.)

(2794.) D. sylvatica, Kunth; Vasey, Grasses of U. S. 51, (1885.)

Calarnagrostis sylvatica, DC; Macoun, Cat. No. 2137. C. purpurascem, R. Br.: Hook., Fl. II., 240, in part.

Apparently a mountain species, extending far to the north. Old Bow Fort, near Morley, (1879), and very common westward on dry gravelly slopes through the Rocky Mountains to Roger's Pass, in the Selkirks, B.C. (Macoun.) Crow Nest Pass, Rocky Mountains; Lewes River, lat. 62°, Pelly Banks, lat. 62°, and Dease River, lat. 59°, N.W.T., and B.C. (Dawson.) Bennett's Lake, Lewes B., B.C. (W. Ogilvie.) Rocky Mountains. (Hooker, Fl.)

(2795.) D. Suksdorfii, Scribner, Bull. Torr. Club XV., 9.

This is an uncommon grass on the burnt ridges covered with Pinus Murrayana at Castle Mountain, Rocky Mountains; and Donald, Columbia Valley. (Macoun.) South Kootanie Pass, Rocky Mountains, 1883. (Dawson.)

(2796.) D. borealis.

An imperfectly characterized species, having the general appearance of D. Iapponica, has been named (by Dr. Vasey) D. Vancouverensis, in Bulletin Torrey Botanical Club, Vol. XY., 48. It is indicated as a "small species, 10 or 12 inches high, with spicate panicle 1 1/2 to 2 inches long, approaching D. strigosa, Kunth." It grows plentifully in water at Fort George, James Bay. Collected July 1887. (J. M. Macoun.) With Dr. Vasey's permission I have changed the name to the above, which is more in accordance with the locality where found.

(2797.) D. Columbiana.

This species is related to D. Aleutica, but the specimens are very poor and difficult to characterize. Collected at Ta-gish Lake, Lewes River, N.W.T., Sept. 1887. (Dawson.)