(2847.) P. abbreviate, E. Br.; Hook., Fl. II., 247.

Melville Islands, and Igloolik; Kotzebue Sound. (Hooker, Fl.) Port Bowen, Labrador, 1825. (Lieut. Boss.) Digge's Island, Hudson Strait. (B. Bell.) On rocks near the sea, Cadboro Bay, and on sand at Qualicum, Vancouver Island. (Macoun.) Greenland. (Lange.) Some of these references are doubtful.

(2848.) P. alpina, Linn.; Hook., Fl. II., 246.

Abundant on mountains and on the northern coast. Nain, coast of Labrador; and Cape Chudleigh, Hudson Strait. (B. Bell.) Newfoundland. (Sir Joseph Banks.) Jupiter River, and Gunn River, Anticosti; Riviere Ste. Anne des Monts, Gaspé, Q. (Macoun.) Mount Albert, Gaspé, Q. (Porter.) Harbor Island, Mingan, Q. (St. Cyr.) North shore of Lake Superior. (Agassiz.) At Otter Head, and Pie Island, Lake Superior; Point Wilkins, Lake "Winnipegoosis, Man. (Macoun.) "The Twins," James Bay; west coast of Hudson Bay. (J. M. Macoun.) York Factory to Fort Churchill. (B. Bell.) Between Repulse Bay and Cape Lady Pelly. (Dr. Bae.) Bather abundant on the Rocky Mountains, from the Kananaskis westward to Roger's Pass, in the Selkirk Mountains; Stewart's Lake Mountain, and Fort Mc-Leod, B.C.; summit of Mounts Benson and Arrowsmith, Vancouver Island. (Macoun.) Eastern and western summits of North Kootanie Pass, Rocky Mountains; Lake Lindeman, lat. 59° 40', B.C., and Pelly Banks, lat. 62°, N.W.T. (Dawson.) From the elevated grounds of the Saskatchewan to the Rocky Mountains, and Bear Lake. (Hooker, Fl.) Pond's Bay, Baffin's Bay. (Dr. Walker.) Greenland. (Lange.)

(2849.) D. alsodes, Gray, Man. Ed. V., 630.

P. nemoralis, Torr., Fl. I., 111. Dartmouth, near Halifax, N.S. (Sommers, Oat.) Between Florenceville, and Andover, N.B. (Brittain.) St. Stephen, N.B. (Vroom.) Damp woods, near London, Ont. (Burgess. Millman.)

(2850.) P. andina, Nutt.; Vasey, Oat. Grasses U. S., 79, (1885.)

This species seems to be badly characterized or poorly understood. Ungava, Labrador. (Barnston.) Sand beaches, Poplar River, Lake Nipigon, Ont. (Macoun.)

Var. purpurea, Vasey. (MS.)

Red Deer Lakes, Hand Hills, and Red Deer River, Alberta. (Macoun.)

(2851.) P. annua, Linn.; Hook., Fl. II., 245.

This species has become naturalized wherever settlements have been made, and it seems to thrive as well on the shores of Hudson Bay as under the genial skies of Vancouver Island. Greenland. (Lange,)

(2852.) P. Bolanderi, Vasey, Coult. Bot. Gaz. VII., 32.

On sand at Sooke, Vancouver Island. (Fletcher.)

(2853.) P. caesia, Smith; Gray, Man. Ed. V., 629.

P. nemoralis, Hook., Fl II., 246.

P. glauca, Vahl., Fl. Dan. t. 964, (1790.)

An abundant and useful grass forming much of the pasture in the eastern and northern parts of the prairie region. At Windsor, N.S. (Macoun.) Taborville, King's Co., N.B. (Fowler, Cat.) Summit of Mount Albert, Gaspé, Q. (Porter.) Very common at Belleville, along the River Moira, Ont.; north-east coast of Lake Superior, and around Thunder Bay, and up the Kaministiqua to Kakabeka Falls. (Macoun.) Gravelly shores, London, and Parry Sound, Georgian Bay. (Burgess.) Vicinity of Hamilton, Ont. (Logie.) Severn River, and west coast of Hudson Bay. (J. M. Macoun.) Point Wilkins, Lake Winnipegoosis, Man.; west of Touchwood Hills; Brandon, and Old Wives Lakes; south of Battleford. (Macoun.) Moose Mountain Creek, Assiniboia. (J. M. Macoun.) North Fork of Old Man River, Rocky Mountains; Lake Lindeman, lat. 59° 40'; Dease River, lat. 59°; Frances River, lat. 61°; Pelly Banks, lat. 62°, B.C., and N.W.T. (Dawson.) Spence's Bridge, B.C. (Macoun.)

Var. strictior, Gray, Man. Ed. V., 629.

Damp rocks near Sault Ste. Marie; Flat Rock Portage, Nipigon House, Lake Nipigon; on dry slopes of the foot-hills of the Rocky Mountains, at Morley. (Macoun.) Wet gravelly shore of Lake Superior, at Port Arthur. (Burgess.)

(2854.) P. cenisia, All.; Vasey, Cat. Grasses U. 8., 81, (1885.)

P. arctica, R. Br.; Hook. Fl. II., 246, in part; Macoun, Cat. No. 2191. P flexuosa, Wahl. Fl. Suec. (1824.)

Labrador; Rocky Mountains to the Arctic sea-shore and islands in every direction. (Hooker, Fl.) Ford's Harbor, Labrador; CapeChud-leigh, Nottingham Island, Digge's Island, and Mansfield Island, Hudson Strait. (R. Bell.) Fort George, Little Charlton Island, and "The Twins," James Bay; west coast of Hudson Bay. (J. M. Macoun.) Between Fort Churchill and Cape Lady Pelly, north of Hudson Bay. (Dr. Rae.) Point Barrow, Alaska. (John Murdoch.) Cape Lisburne, Kotzebue Sound, Ounalashka, and Sitka. (Rothr. Alask.) On the beds of snow-slides on all the higher Rocky and Selkirk mountains. (Macoun.) Hills north of Finlayson Lake, N.W.T. (Dawson.) Greenland. (Lange.)

(2855.) P. compressa, Linn. (English Blue Grass.)

This is considered an excellent pasture grass, but is much inferior to Poa pratensis. Truro, Annapolis and Kingston, N. S. (Macoun.) Harvey, York Co.; Fredericton Junction, and St. John; Bellisle, N.B. (Fowler, Cat.) Magdalen Islands, N.S. (J. Richardson.) St. Charles River, Q, (St. Cyr.) Field, Ste. Anne des Monts River, Gaspé, Q. (Macoun.) Vicinity of Tadousac, Q. (A. T. Drummond.) Neighborhood of Ottawa. (Fletcher, Fl. Ott.) Common at Prescott, Ont. (Billings.) Very common throughout central Ontario, in old pastures, and westward to Owen Sound. (Macoun.) Vicinity of Hamilton, Ont. (Logie.) Sterile sandy soil, London, Ont.; also Parry Sound, Georgian Bay. (Burgess.) In pastures at Cedar Hill, and Cloverdale, Vancouver Island. (Macoun.)

(2856.) P. Californica, Vasey, Cat. Grasses U. S. 81, (1885.)

P. andina, Nutt. in herb. Gray; Macoun, Cat. No. 2185. Eragrostis Fendleri, Steud. Syn. Gram. 278. Atropis Californica, Munro. (MS.)

Abundant on the mountain slopes along the Fraser River, at Lytton, and up the Thompson to Spence's Bridge, B.C. (Macoun.)

(2857.) P. cuspidata, Vasey & Scribner.

Rather common on the higher slopes of the Rocky and Selkirk mountains, and frequent in all the valleys. (Macoun.)