Contributions to Canadian Botany. 9 



fruiting head round, 8 to 15 mm. in diameter; aehenium 

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

 smooth, or often with a vertical subepidermal resin passage. 

 l*hyllodia of two forms, either long, slender, petiole-like, 

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

 15 mm. wide. 



Grande Vallee, Gasp^, Que. ; Nipigon River, Ont. : Hand 

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

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

 ]\Iountain Creek, Assa. {Jas. M. Macoun.)* 



S. CUNEATA, Sheldon. 



S. variabilis, var. 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 Piiver, B.C. {Dr. G. M. Dawson.) 



S. LATIFOLIA, Willd. 



Moncecious, 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 ; aehenium broadly 

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

 with a lateral horizontal or curving beak \ to ^ 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. 



• No localities are given in this paper except those from which there are specimens 

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



