Rather rare in most localities. Soft peat bogs, Richibucto, Fred-ericton, Tay's Mills, York Co.; St. Stephen, and McAdam Junction, KB. (Fowler, Cat.) Mer Bleue, near Ottawa. (Fletcher, Fl Ott.) Marsh near Prescott Junction, Ont.; rare. (Billings.) In a little pond in north western Seymour, and in a peat bog five miles north of Col borne, Northumberland Co.; very abundant along Gull Lake, Victoria Co., Ont. (Macoun.) Mossy bogs, London, Ont. (Burgess. Millman.) Parry Sound, Georgian Bay. (Burgess.) Between Trout Lake and the Severn River, Keewatin. (J. M. Macoun.) Between Hudson Bay and Cumberland House; and upon "The Height of Land," Rocky Mountains. (Hooker, Fl)
(2427.) L. subulata, HBK. Nov. Gen. I., 222.
Heterostylus gramineus, Hook., Fl. II., 171.
Abundant in mud between high and low water, Somas River, Alberni, west coast of Vancouver Island. Water always fresh. (Macoun.)
(2451.) R. maritima, Linn.; Pursh, PL I., 121; Hook., Fl. II. 170.
Generally in salt ponds by the sea-coast. Abundant at Yarmouth, N.S., and in salt ponds at Baddeck, Cape Breton. (Macoun.) Growing under water in estuaries of rivers flowing into the Gulf of St. Lawrence, New Brunswick coast. (Fowler, Cat.) St. Andrews, N.B. ( Vroom.) Pokeseudie Gully, Gloucester Co., N.B. (Hay.) Growing profusely in the northern end of Old Wives Lakes, Assiniboia, near the Canadian Pacific Railway; in salt ponds at Qualicum and Alberni, Vancouver Island. (Macoun.)
(2453.) Z. marina, Linn.; Pursh, Fl. I., 2.
Between high and low tide on both the east and west coasts. Halifax, N.S. (Sommers, Cat.) On the sea-coast at Yarmouth, and on McNab's Island, Halifax Harbor, N.S. (Macoun.) Common along the coasts of Nova Scotia and Newfoundland. (McKay.) Growing under water in shallow places along the Gulf coast, N.B. (Fowler, Cat.) Salt Lake, Anticosti; common around the Bay of Chaleur and up the
Gaspe coast of the St. Lawrence; abundant on both the east and west coasts of Vancouver Island, always about low water mark. (Macoun.) Ounalashka. (Rothr. Alask.) Greenland. (Lange.)