(319.) B. marina, Dumort; Gray, Man., ed. VI., 89. (1890.)

Tissa marina, Britton, Bull. Torr. Bot. Club, XVI., 126. Spergularia media, Macoun, Cat. I., 85.

Owing to our imperfect knowledge of this genus, our specimens were in some cases placed under the wrong species, but all have lately been examined by Dr. Britton, and we here repeat the localities of our herbarium specimens for each species of the genus. Salt marshes, St. John, KB. (Matthews.) Annapolis, N.S. (Prof. Fowler.) Brackish sands along the coast at Brackley Point, Prince Edward Island; North Sydney, Cape Breton; Pictou, N.S.; salt lake, west of Long Lake, and Old Wives' Lakes, Assiniboia; salt marsh, Kamloops, and shore of Burrard Inlet, B.C.; on wet sand, Oak Bay and Nanaimo, Vancouver Island. (Macoun.)

(321.) B. borealis, Watson; Gray, Man., ed. VI., 90. (1890.)

Tissa salina, Britt, Bull. Torr. Bot. Club, XVI., 129. Spergularia salina, Macoun, Cat. I., 80.

Salt marshes, coast of Kent Co., N.B. (Prof. Fowler.) Gravelly beach, below high-water mark, St. Croix River, St. Stephen, N.B. ( Vroom.) Salt marshes, Brackley Point, and Mount Stewart, Prince Edward Island; Becscie River, Anticosti, and Restigouche River, Que. (Macoun.)

(3084.) B. marotheca, Fisch. & Meyer.

Tissa macrotheca, Britt. Bull. Torr. Bot. Club, XVI., 129.

Coast of Vancouver Island, at Beacon Hill and Oak Bay, near Victoria. (Fletcher, Macoun, Newcombe.) Crevices of rocks washed by the sea, Barclay Sound, Vancouver Island. (Macoun.)

(320.) B. rubra, Dumort; Gray, Man., ed. VI., 89. (1890.)

Tissa rubra, Britt, Bull. Torr. Bot. Club, XVI., 127. Spergularia rubra, Presl; Macoun, Cat. I., 80

Bass River, KB. (Prof. Fowler.) Halifax, N S., and North Sydney, Cape Breton; roadsides near Victoria, Vancouver Island. (Macoun.)