Contributions to Canadian Botany. 11 



Note. — These descriptions of the several forms of Sugar 

 Maples have been reprinted from Dr. Trelease's Monograph 

 in 5th Annual Report of Missouri Botanical Garden, and 

 space is given to them as they change very materially our 

 knowledge of these trees, and by printing the descriptions 

 in full it is hoped that Canadian botanists will be led to 

 carefully observe the sugar maples in theii* vicinity. 



Rhus glabra, Linn. 



R. glabra, L., var. occidentalis, Torrey; Macoun, Cat. 

 Can. Plants, VoL I., p. 505. 



Deer Park, Lower Arrow Lake, B.C. ; Kamloops, B.C., 

 and Spence's Bridge, B.C. {John Macoun.) Onh' refer- 

 ences west of Ontario. 



Rhus copallina, Linn. 



Rocky hUlsides at Lansdowne, Ont. {Rev. Chas. Young.) 

 Very rare in Canada. 



LupiNUS arcticus, Wats. 



Additional stations for this species are L^pper Liard 

 River, Lat. 60°, Yukon District ; forks of Stikine River, 

 B.C. {Dr. G. M. Dawson.) Fifty miles below Lower 

 Ramparts, Mackenzie River. {R. S. McConnel.) Fort 

 Good Hope, Mackenzie River. {Miss E. Taylor.) Speci- 

 mens collected at Medicine Hat in flower. May 31st, 1894, 

 have been referred here by Dr. Robinson. {John Macoun, 

 Herb. No. 4190.) 



Saxifraga T0LM.EI, Torr. & Gray. 



On Mount Head, alt. 4,200 ft., Lat. 56° 05', Long. 

 131° 09', 1894. {Otto Klotz and H. W. E. Canavan, Herb. 

 No. 4197.) First authentic record for Canada. 



TlLL^EA SIMPLEX, NUTT. 



In mud in a mill pond at Moimt Stewart, Prince Edward 

 Island, 1888. {John Macoun.) New to Canada. 



