(2858.) P. debilis, Torr. Bot. N. York, II., 459.

Not uncommon in woods eastward. Rocky woods at Pirate's Cove, Canso, N.S. (Macoun & Burgess.) Petitcodiac, N.B. (Fowler, Cat.)

Island of Orleans. (St. Cyr.) Along Ste. Anne des Monts River, Gaspé, Q. (Macoun.) Mount Albert, Gaspé, Q. (Porter.) Miriwin's Woods, Prescott, Ont.; rare. (Billings.) Dry rocky ground in woods at Shannonville, and Belleville, Hastings Co., Ont.; dry spots, Current. River, Lake Superior, and Lake Nipigon; Niagara Falls, and Port Stanley, Ont. (Macoun.) London, Ont. (Millman) Vicinity of Hamilton, Ont. (Logie.) Kemptville, Ont. (Porter.)

Var. acutiflora, Vasey. (MS.)

Common in woods and thickets at Truro, N.S. (Macoun & Burgess.)

(2859.) P. Eatoni, Watson. East end of Cypress Hills, Alberta, 1880. (Macoun.)

(2860.) P. flavicans, Ledeb.; Kothr. Alask. Pl., 467.

Ounalashka. (Rothr. Alask.)

(2861.) P. glumaris, Trim; Hook., Fl. II., 247.

Glyceria glumaris, Ledeb.; Rothr. Alask. Pl. 458. Islands of St. Lawrence, and Sitka, peninsula of Alaska, and Kotze-bue Sound. (Hooker, Fl. Rothr. Alask.) Mingan Islands. Q. (St. Cyr.) Magdalen Islands, N.S. (McKay.) English Bay, Anticosti; Grand Etang, Gaspé coast, Q. (Macoun.) Temiscouata, Q. (Pringle.)

(2862.) P. Howellii, Vasey & Scribner.

On the slopes of dry gravelly hillsides at Goldstream, Nanaimo, and Somenos, Vancouver Island. (Macoun.)

(2863.) P. laxa, Hamk.; Hook., Fl. II., 246.

On the open prairie, Emerson, Man. (Burgess. Millman.) Near Edmonton, on the Saskatchewan; on a mountain summit near Kicking Horse Lake, Rocky Mountains. (Macoun.) Hudson Bay to the Arctic islands. (Hooker, Fl.) Pond's Bay and Port Kennedy, west coast of Baffin's Bay, lat. 72°. (Dr. Walker.) Nelson River, Keewatin. (R.Bell.)

(2864.) P. leptocoma, Trim; Hook., Fl. II., 247.

Sitka. (Hooker, Fl.)

(2865.) P. Macounii, Vasey. (ined.)

Abundant on the upper slopes of the Rocky Mountains, at Kicking Horse Lake, (1885.) (Macoun.)

(2866.) P. nemoralis, Linn.; Hook.,Fl. II.,246; Pursh,Fl. I., 79. (?)

Amongst gravel in the valley of Jupiter River, Anticosti; Moose

Mountain, Assiniboia; on the lower slopes in openings of the pine woods in the Rocky Mountains, at Castle Mountain; on sand in the valley of Beaver Creek, Selkirk Mountains, B.C. (Macoun.) Kotzebue Sound. (Rothr. Alask.) Moose Factory, James Bay. (Cottar & Br. Hayden.) Greenland. (Lange.)

(2867.) P. Nutkaensis, Presl.

Alaska. (Vasey.)

(2868.) P. Nevadensis, Vasey.

On cliffs along the sea at Esquimalt, and Gordon Head, near Victoria, Vancouver Island. (Macoun.)

(2869.) P. pratensis, Linn.; Hook., Fl. II., 246.

This species is one of the most widely spread and most valuable grasses we have in the country. It is found in almost every situation, but prefers sandy or gravelly fields, where in a few years it takes complete possession. Its value for hay is not nearly so great as for pasture. Although often despised by the farmer it is the best friend he has, as his animals feed upon it for nearly the whole summer. The form generally found in the fields has been introduced, but it is indigenous both in the north and west, and is destined to be the great pasture grass of our North-west Territories. Greenland. (Lange.)

(2870.) P. purpurascens, Vasey, Bull. Torr. Bot. Club. VI., 297.

On the upper slopes of the Rocky and Selkirk mountains; very abundant; summit of Mount Arrowsmith, Vancouver Island, alt. 5,700 feet. (Macoun.)

(2871.) P. serotina, Ehrh.; Gray, Man. Ed. V., 629.

P. palustris, Muhl. Gram. 150.

P. crocata, Michx., Fl. I., 68; Hook., Fl. II., 246.

Abundant in wet swampy places from the Atlantic to the Pacific. Truro, and Yarmouth, KS. (Macoun.) Baddeck, Cape Breton. (Burgess.) Magdalen Islands, N.S. (McKay.) Along brooks in damp fields, Bass River; Hampton, N.B. (Fowler, Gat.) Beauport, Q. (St. Cyr.) Open places, Huckleberry Rapids, Argenteuil Co., Q. (D' Urban.) Tadousac, Q. (A. T. Drummond.) Along the Gaspé coast, at Matane; Salt Lake, Anticosti. (Macoun.) Vicinity of Ottawa. (Fletcher, Fl. Ott.) Common in wet places at Prescott, Ont. (Billings.) Very common throughout central Ontario, and extending northerly around Lakes Huron and Superior to Rainy Lake. (Macoun.) North shore of Lake Superior. (Agassiz.) Swampy ground near London. (Millman.

Burgess.) Vicinity of Hamilton, Ont. (Logie.) Gravelly shore of Lake Superior, at Port Arthur, Ont. (Burgess.) Nelson River, Kee-watin. (B. Bell.) Moose Mountain, Assiniboia. (J. M. Macoun.) Sand Creek, Kootanie Valley, Rocky Mountains. (Dawson.) Côteau de Missouri; abundant on the Saskatchewan, and northward to Lake Athabasca; very common in wet places and ditches, Vancouver Island. (Macoun.) Lake Winnipeg to the Rocky Mountains. (Hooker, Fl.) Red River, Man., 1827. (Douglas.)

We have vars. Hallii and erecta from the prairie region, but they may be only transient forms of the species, and not good varieties.

(2872.) P. stenantha, Trim; Hook., Fl. II., 247.

lestuca nervosa, Hook., Fl. II., 251. (?) Sitka, and Ounalashka. (Rothr. Alask.) Nootka Sound, west coast of Vancouver Island. (Hooker, Fl.) On the beds of snow slides on the higher Selkirk Mountains in Roger's Pass, B.C. (Macoun.)

(2873.) P. sub-aristata, Scribner.

On the summits of the higher Rocky Mountains, from Can more westward to the Columbia. (Macoun.)

(2874.) P. tenuiflora, Nutt.; Gray, Proced. Am. Acad. VIII., 409 Atropis tenuiflora, Thurber, Bot. Calif. II., 310.

An exceedingly valuable grass, especially in the foot-hills of the Rocky Mountains and throughout British Columbia. One of the "Bunch Grasses." In its numerous unrecognized varieties it extends from Brandon westward through the whole prairie region, especially to the south, and appears again west of the Rocky Mountains, where it is the chief pasture grass, and forms part of the natural hay in northern British Columbia. On Vancouver Island it is abundant, from the sea-coast to the snow-line, and hence is essentially the native pasturage grass of the Pacific coast.

Tar. Oregona, Vasey, Cat. Grasses U.S. 85, (1885.) This variety has only been detected along the coast of Vancouver Island, from Victoria, to Nanaimo.

(2875.) P. trivialis, Linn. (Rough-Stalked Meadow Grass.)

Introduced in ballast at Richibucto, N.B. (Fowler, Gat.) A number of forms of this fine grass were abundant in the wet pastures at, and around, Victoria, Vancouver Island; doubtless introduced. (Macoun.)

We have still a number of undetermined forms of Boa, some of which may be good species, but we have not material enough on hand to come to any decision. This genus is well represented in Canada, and the fact that such species as P. caesia, pratensis, serotina, and tenuiflora, are found throughout the north, shows clearly that Canada wherever denuded of forest is the land of butter, cheese and beef, for future generations.