(2638.) C. retrocurva, Dew., Wood's Bot. 423, (1845.)

Apparently rare in Canada. Vicinity of Hamilton, Ont. (Logie.) Grassy woods at Amherstburgh, Lake Erie. (Macoun.) Border of a ravine at London, Ont. (Burgess. Millman.)

(2639.) C. digitalis, Willd. Sp. Pl. IV., 298, (1805.)

C. oligocarpa, Hook., Fl II., 226, (1840.)

C. Van-Vleckii, Schweinitz, An. Tab. (1823.)

C. podostachys, Steud. Cyper. Plant, 232, (1855.)

Open grassy woods and borders of ravines at Port Stanley, Elgin Co., and on Queenstown Heights, near .Niagara; in a field near the Big Swamp, Murray, Northumberland Co., and in woods, Tudor, Hastings Co., Ont. (Macoun.) Vicinity of Hamilton, Ont. (Logie.)

(2640.) C. platyphylla, Carey,Sill. Journ. (2d. Ser.)IV.,23, (184?.)

Open grassy woods, not rare in Ontario. Near Montreal. (0. F. McCrea.) King's Mountain, Chelsea, Q. (Fletcher, Fl. Ott.) Rich, rocky woods, common around Belleville, and westward through central Ontario to Owen Sound, Georgian Bay. (Macoun.) Port Colborne, Lake Erie. (McGill Coll. Herb.) Vicinity of Hamilton. Ont. (Logie.)

(2641.) C. plantaginea, Lamarck, Dict, de Bot. III., 392,

(1789); Hook., Fl. II., 226; Michx., Fl., I., 113; Pursh, Fl. I., 42.

C. latifolia, Wahl. Köngl. Acad. Handl. XXIV., 156, (1802.) On the slopes of ravines, and in cool woods throughout Ontario. St. John River, between Florenceville and Andover, N.B. (Brittain) Vicinity of Ottawa. (Fletcher, Fl. Ott.) Miriwin's Woods, near Prescott, Ont. (Billings.) Abundant in ravines at Belleville, and westward throughout Ontario to Owen Sound, Georgian Bay. (Macoun.) Grand Island, Georgian Bay. (R. Bell.) Low woods, London, Ont. (Burgess. Millman.) Norway House, north end of Lake Winnipeg. (Hooker, Fl.)

(2642.) C. eburnea, Boott, Hook., Fl. II., 226, (1840.)

C alba, Dew. Sill. Journ. VII., 266, (1824.)

C. alba, var. setifolia, Dew. Sill. Journ. XL, 316, (1826.)

C. paupercula, Torr. Cyp. 415, (1836), (non Michx.)

Not uncommon on dry limestone shingle, along rivers and lakes. Tobique Narrows, N.B. (Briitain.) Dry rocks, Rivière de Brig, Anticosti. (Macoun.) Mingan River, Q. (St. Cyr.) Common in all rocky woods, Ottawa. (Fletcher, Fl. Ott.) On rocky banks of the Moira, at Belleville; banks of Trent, above Trenton, and westward throughout north-western Ontario, on rocky banks, to Port Arthur,, Thunder Bay. (Macoun.) River banks, London, Ont. (Burgess. Mill-man.) Point aux Pins, Lake Erie; and Saugeen, Lake Huron. (Burgess.) Point Wilkins, Lake Winnipegoosis, Man.; rather rare on gravelly banks, from Morley westward through the Rocky Mountains to Donald, in the Columbia Valley, B.C. (Macoun.) Cedar Lake,, near Cumberland House; Fort Norman, on the Mackenzie River; and Rocky Mountains, lat. 54°-56°. (Hooker, Fl.)

(2643.) C. pedunculata, Muhl. (1805); Hook., Fl. II., 211.

Cool shady woods and in swamps. Petitcodiac, and Havelock; Red Bank, and Salmon River; St. Stephen; Nashwaaksis, N.B. (Fowler, Cat.) Woods at Salt Lake, and English Bay, Anticosti; in abundance, along the Gaspé coast, Q. (Macoun.) Island of Orleans. (St. Cyr.) In a swamp, half way between Montreal and the Recollet. Swamp. (C. F. McCrea.) Between Gate and St. Jean lakes, Went-worth, Argenteuil Co., Q. (D' Urban.) Very common in damp woods, Ottawa. (Fletcher, Fl Ott.) Miriwin's Wood's, near Prescott, Ont. (Billings.) Carleton Place, and westward through Ontario to the west side of Lake Superior, at Point Meuron, Kaministiqua River. (Macoun.) Port Colborne, Lake Erie. (McGill Coll. Herb.) Vicinity of Hamilton, Ont. (Logie.) Damp woods, London, Ont. (Burgess. Millman.) Cumberland House, and Norway House, and Rocky Mountains. (Hooker, Fl.) Rainy Lake, and Winnipeg River. (Richardson.)

‡ ‡ Perigynium pubescent.

(2644.) C. concinna, E. Br. (1823); Hook., Fl. II., 223.

C. ornithopoda, Torr. Cyp., 412, (1836.) Lake Mistassini, N.E.T. (J. M. Macoun.) Ste. Geneviève Island, Q. (St. Cyr.) Shores of Lake Nipigon, Ont.; amongst rocks at Manitoba House, Lake Manitoba, Pipestone Creek, Man.; common from Morley westward through the Rocky Mountains to Roger's Pass, Selkirk Mountains; Cache Creek, and Clinton, and northward to Mc-Leod's Lake, lat. 55°, B.C. (Macoun.) Cumberland House, on the Saskatchewan, to Mackenzie River; Rocky Mountains. (Hooker, Fl.)

(2645.) C. melanocarpa, Chamisso; Bailey, Carex, Syn. 120, (1886.)

St. Lawrence Island, off Alaska. (Rothr. Alask.)

(2646.) C. Richardsoni, E. Br. (1823); Hook., Fl. II., 223.

Newfoundland. (Reeks.) Dry thickets east of Belleville; also near Canniffton, and a little, east of the railway bridge, Trenton, Hastings Co., Ont.; on dry grassy hillsides around Morley, and westward through the Rocky Mountains to Donald in the Columbia Valley, B.C.; mountain summit at Spence's Bridge, and along the Telegraph Trail, lat. 54°, B.C. (Macoun.) Norway House, and Cumberland House; Rocky Mountains, and North West coast. (Hooker, Fl.)

(2647.) C. Pennsylvanica, Lamarck, (1789); Hook., Fl. II., 223; Pursh, Fl. I., 40, (1814.)

C. marginata, Willd. Sp. PI. IV., 261, (1805.)

C. lucorum. Willd. Hort. Berol. Suppl. 63, (1809.)

Dry knolls in woods between Richibucto and Molus River; not rare at Salmon River, N.B. (Fowler, Cat.) St. Stephen, N.B. ( Vroom.) Petitcodiac, N.B. (Brittain.) Vicinity of Ottawa. (Fletcher, Fl. Ott.) Chalk River, Renfrew Co., and westward throughout Ontario in open woods to Owen Sound on the Georgian Bay. (Macoun.) Common in woods at Prescott, Ont. (Billings.) Vicinity of Hamilton, Ont. (Logie.) Komoka, Ont. (Burgess.) London, Ont.; Emerson, Man. (Burgess. Millman.) Saskatchewan River, at Cumberland House, and at Lake Winnipeg. (Richardson.) Sour is Valley, Man. (Dawson.) Abundant in thickets throughout Manitoba and westward on the open prairie; rather common on dry slopes at Morley and extending westward in the Rocky Mountains to Canmore; not uncommon in dry thickets at Yale, B.C.; grassy woods at Cedar Hill, and throughout the southern part of Vancouver Island to Qualicum. (Macoun.) Vicinity of Victoria, Vancouver Island. (Fletcher.) British America to the Rocky Mountains. (Hooker, Fl.) The west coast specimens have much darker scales, and in most cases the lower spikelet is subtended by a green bract.