Contributions to Canadian Botany. 9 



fruiting head round, 8 to 15 mm. in diameter : achenium 

 2 mm. long, tumid winged on both margins, the sides 

 smooth, or often with a vertical subepidermal resin passage. 

 Phyllodia of two forms, either long, slender, petiole-like, 

 or flattened, linear-lanceolate, 2 to 5 dm. long and 10 to 

 15 mm. wide. 



Grande Yallee, Gaspe, Que. ; Xipigon Eiver, Ont. ; Hand 

 Hills and Eagle HiUs, Alberta ; Sicamous, B.C. ; Kamloops, 

 B.C. {John Macmm.) Manitoba. {Bourgeau.) Moose 

 Mountain Creek, Assa. {Jas. M. Mawun.)* 



S. CUNEATA, Sheldon. 



S. variabilis, rar. diversifolia, Macoun, Cat. Can. Plants, 

 Vol. II., p. 78, in part. 



*S'. variabilis, var. gracilis, Macoun, Cat. Can. Plants, 

 Vol. II., p. 78, in part. 



Eagle Hills, Alberta ; Sicamous, B.C. (John Macoun,) 

 South Thompson River, B.C. (Dr. G. M. Daicson.) 



S. LATIFOLIA, Willd. 



Monoecious, with the lower verticils fertile, or dioecious: 

 scape 1 to 12 dm. high, angled, simple or branched; 

 flowers large, 2 to 4 cm. wide, the petals white ; stamens 

 numerous, 25 to 35 ; fertile pedicels shorter than the 

 sterile ; bracts sometimes connate in the upper verticils, 

 acute, acuminate, or obtuse, not scarious ; achenium broadly 

 winged on both margins, 2.5 to 3.5. or rarely 4 mm. long, 

 with a lateral horizontal or curving beak \ to i- its length, 

 sides usually smooth or with a costate angle curving 

 downward from the base of the beak, rarely with a sub- 

 epidermal resin passage on each face. 



Mr. Smith recognizes five forms of this species, two of 

 which with the species proper are found in Canada. 



" Xo localities are given in this paper except those from which there are specimens 

 In the herbarium of the GeoL Survey, or which are included in Mr. Smith's revision. 



