I 



1898] Contributions to Canadian Botany. 165 



Arenaria arctica, Stev. 



A single specimen of this species was collected in Northern 

 Labrador by Mr. A. P. Low in 1897. According to Dr. Robin- 

 son this specis is confined to Alaska and adjacent coasts and 

 our other herbarium specimens are all from that region, but 

 there can be no doubt about the identit}' of Mr. Low's plant. 



Arenaria capillaris, Poir., var. Formosa, Kegel. 



A. capillaris, var. nardifolia, Macoun, Cat. Can. Plants, 

 Vol. I, p. 70, in part, and vol. I, p. 496. 



Common in the Rocky Mountains and British Columbia. 

 All our specimens with the exception of those from Sproat, B.C., 

 are this variety. The sp)ecimens collected at Sproat are much 

 larger, with larger flowers (petals more than twice the length of 

 the calyx), and much longer spreading pedicels. The whole 

 plant is glabrous, but is not certainly referable to either A. 

 capillaris or the var. nardijolia. 



Hypericum nudicaule, Walt. 



H. Sarothra, Michx. Macoun, Cat. Can. Plants, vol. I, p. 85. 



In sandy fields at Sandwich, Ont. Herb. No. 18,317 {John 

 Macoun.) This is the only Canadian localit)- from which we 

 have specimens of this plant. 



Helianthemum Caxadense, Michx. 



Our only specimens of this species are from Rice Lake 

 Plains, Ont. ; Sandwich. Ont. {John Macoun.) ; and Niagara 

 Falls, Ont. {R. Cameron.) 



Helianthemum m.ajus, B. S. P. 



H. Canadense, Macoun, Cat. Can. Plants, vol. I, p. 60, in 

 part, and vol. I, p. 492. 



Apparently more widely distributed than the last in Canada. 

 Our specimens are from Kingston, N.S. {John Macoun.) ; Lon- 

 don, Ont. {Dr. Burgess), High Park, Toronto, Ont. {[as. White.) 

 Lake of the Woods, Ont. (Dr. G. M. Dazvson). 

 Lechea intermedi.\, Leggett. 



All the references under L. minor, Macoun, Cat. Can. Plants, 



