. The Canadian field-naturalist. March-April, 1951] The Canadian Field-Naturalist 57. Fig. 4. Old Eskimo dwelling site on east bonk of Sylvia Grinnell River. Luxuriant colonies of poa pratensis, cerastium alpinum, and cochlearia officinalis may be noted in foreground. tions were made along the upper limits of the sandy beaches bordering Koojesse Inlet. Cruciferae *Arabis alpina L. — Noted only once on the bank of a small stream along the face of the limestone cliff at Silliman Mountain. Senn & Colder 3917. A. arenicola (Rich.) Gelert — Quite common but restricted to open dry sandy areas al
. The Canadian field-naturalist. March-April, 1951] The Canadian Field-Naturalist 57. Fig. 4. Old Eskimo dwelling site on east bonk of Sylvia Grinnell River. Luxuriant colonies of poa pratensis, cerastium alpinum, and cochlearia officinalis may be noted in foreground. tions were made along the upper limits of the sandy beaches bordering Koojesse Inlet. Cruciferae *Arabis alpina L. — Noted only once on the bank of a small stream along the face of the limestone cliff at Silliman Mountain. Senn & Colder 3917. A. arenicola (Rich.) Gelert — Quite common but restricted to open dry sandy areas along the upper part of the beaches bordering Koojesse Inlet. Senn & Calder 3862; Colder 2016. These collections represent the first records for the Frobisher Bay area. *Braya purpurascens (Br.) Bunge — Rare. Noted only at Silliman Mountain, where it was growing in rock crevices along the lime- stone cliff, Senn & Calder 4020, and on dry clay in a sparsely vegetated area by a small pond about one mile north of the camp. Senn & Calder 3898. Previously unreported for the Frobisher Bay region. Cardamine bellidifolia L. — Quite common in the more open communities in gravelly or sandy soil. The majority of the collections were made in moist depressions along the upper part of the sand beaches near the camp. C. pratensis L. — Collected in shallow water and in damp soil along the margins of a small stream that emptied into Koojesse Inlet. Calder & Senn 2057. Apparently rare though perhaps overlooked, as a few small sterile colonies were noted in shallow freshwater pools along the east bank of the Sylvia Grinnell River. Cochlearia officinalis L. — Common along the sandy shoreline of Koojesse Inlet and re- presented in the area by var. oblongifolia (DC.) Gelert and var. groenlandica (L.) Gelert. Luxuriant colonies (Fig. 4) of the latter were found around the Eskimo dwell- ing sites along the bank of the Sylvia Grin- nell. Colder 2169. *Draba alpina L. — Noted
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