. The Canadian field-naturalist. 96 The Canadian Field-Naturalist Vol. XXXVII *Diplophyllum plicatum Lidnb. " taxifolium (Wahl.) Dum. Scapania americana K. Mull. A. W. Evans, Postelsia, p. 228. Neither in the National Her- barium, Ottawa, nor in my own. Scapania Bolanderi Aust. " curta (Mart.) Dum. t " cuspiduligera (Nees) K. Miill. " dentata Dum. " Evansii Bryhn. A. W. Evans, Pos- telsia, p. 229. Neither in the National Herbarium, Ottawa, nor in my own. *Scapania glaucocephala (Tayl.) Aust. " irrigua (Nees) Dum. * " nemorosa (L.) Dum. * " Oakesii Aust.
. The Canadian field-naturalist. 96 The Canadian Field-Naturalist Vol. XXXVII *Diplophyllum plicatum Lidnb. " taxifolium (Wahl.) Dum. Scapania americana K. Mull. A. W. Evans, Postelsia, p. 228. Neither in the National Her- barium, Ottawa, nor in my own. Scapania Bolanderi Aust. " curta (Mart.) Dum. t " cuspiduligera (Nees) K. Miill. " dentata Dum. " Evansii Bryhn. A. W. Evans, Pos- telsia, p. 229. Neither in the National Herbarium, Ottawa, nor in my own. *Scapania glaucocephala (Tayl.) Aust. " irrigua (Nees) Dum. * " nemorosa (L.) Dum. * " Oakesii Aust. " obliqua (Arnell) Schiffn. Mount Arrowsmith specimen. Scapania paludosa K. Miill. """ subalpina (Nees) Dum. " uliginosa (Swartz) Dum. " umbrosa (Schrad.) Dum. " undulata (L.) Dum. Radula complanata (L.) Dum. " Bolanderi Gottsche ]Porella Bolanderi (Aust.) Pears. " navicularis (Lehm. & Lindenb.) Lindb. * " pinnata L. " platyphylla (L.) Lindb. A. W. Evans, Postelsia, p. 231. Porella rivularis (Nees) Trevis. * " Roellii Steph. *Cololejeunia Macounii (Spruce) Evans Frullania Bolanderi Aust. * " California (Aust.) Evans * " eboracensis Gottsche * " franciscana M. A. Howe " nisquallensis Sulliv. *Anthoceros fusiformis Aust. * " var. stomatifer Aust. My part of above list was made possible by the work of Dr. C. H. Conklin, Dr. A. W. Evans, and Miss C. G. Haynes in naming the plants and in various other ways, and by Dr. A. W. Evans with additional records and notes. To all of them are my thanks due. There remain records of British Columbia from various sources that I have not been able to get in touch with, and I shall be glad if any reader of above list can put me in touch with further records. NOTES AND OBSERVATIONS. A Curious Halo.—On Saturday, January 6, 1923, at , a curious halo was observed from the Canadian Pacific Railway Una two miles past Ellwood Station, south of Ottawa. The
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