Contributions to Canadian Botany: 151 



Salix aebusculoides, Andr. 



Specimens of this rare and little known willow were col- 

 lected in IS93 by Mr. J. W. Tyrrell on the barren grounds 

 between Lake Athabasca and Chesterfield Inlet. (Herb. 

 No. 1716.) Our only other specimens of this species were 

 collected by Dr. Eichardson. 

 Salix balsamipera, Barratt. 



Barren grounds between Lake Athabasca and Chester- 

 field Inlet, 1803. (J. FT. Tyrrell. Herb. No. 1715.) Not 

 before recoj-ded north of the Saskatchewan. 



Salix Eichardsoni, Hook. 



One specimen of this rare willow was collected by Mr. 

 J. W. Tyrrell at Chesterfield Inlet Hudson Bay, in 1893. 

 Not before recorded from vicinity of Hudson Bay. 



Salix phyllicipolia, Linn. 



We have specimens of this willow from several stations 

 between Lake Athabasca and Chesterfield Inlet, collected 

 in 1893 by Mr. J. W. Tyrrell, so that it is probably com- 

 mon throughout that region. Specimens collected in the 

 vicinity of Hudson Strait by Dr. Eobert Bell, and referred 

 to S. chlorophijUa, Andrs., by Prof. Macoun (Cat. Can. 

 Plants. Vol. I., p. 446), are of this species. 



LiSTERA borealis, Morong, Bull. Torr. Bot. Club, Vol. 

 XX., p. 31. 

 Stems very delicate, 3-5' high, glabrous below, glandular- 

 pubescent, and with long, silky, scattered hairs among the 

 inflorescence, sheathed by two obtuse, membranous scales 

 at the base ; roots thickened, somewhat fleshy ; leaves 

 oval, slightly sheathing, obtuse at the apex, 4"-8" long, 

 2"_4" broad, entire, bearing on the surface a few silky 

 hairs, otherwise very glabi-ous. Eaceme two- or three - 

 flowered. Bracts scarcely 1" long, much shortej* than the 

 pedicels. Sepals and petals nearly equal, linear, obtuse, 

 about 2" long, lip 4"-5" long, 2" broad at the obtuse iapex, 

 ciliolate above ; apical lobes very obtuse, 1" long, the inter- 

 mediate tooth obsolete; basal lobes ^" long, very obtuse. 



