

'UJ 



tlBRARYl 



«^/.: 



THE OTTAWA fiATURALIST. vf 



Vol. XVII. 



OTTAWA, MARCH, 1904. 



No. 12 



SOME CANADIAN ANTENNARIAS.— I. 



By Edw. L. Grkknk. 



Several good species not yet described occur in that fine 

 collection of plants which Mr. James M. Macoun brought from 

 the Chilliwack Valley, British Corumbia, in the year 1901. Excel- 

 lent specimens were communicated to me two years since for 

 determination ; and I have too long deferred that critical study of 

 them, some ot the results of which are subjoined. 



A. STEXOLEPis. Stems of pistillate plant slender, a foot high 

 or more : basal leaves small for the plant, about i inch long, 

 narrowly cuneate-obovate or -oblanceolate, acutish, scarcely mu- 

 cronate, appressed-silky on both faces, most densely so beneath, 

 the indument of the upper face less permanent, commonly lying 

 in rolls in the old age of the leaf; cauline leaves linear and 

 oblong-linear, very acute, erect, an inch long and just equalling 

 the internodes : heads about 8 or 10, large, turbinate, long- 

 pedicelled, forming a very lax cyme ; pedicels woolly but not in 

 the least glandular or viscid ; base of involucre only very scantily 

 woolly, the narrowly linear bracts only slightly scarious-tipped 



but the tips acute. 



Chilliwack Valley, at 2,000 ft., 30 June, 1901, J. M. Macoun; 

 Geol. Surv. No. 26,187. This has the habit of the rather rare 

 Ore-onian A. pedicellata, but as to characters of involucre it is 

 very'dlfTerent. The pedicels also, in V. pedicellafa, are glandular 

 and very viscid, of which peculiarity there is not the faintest trace 

 in the Chilliwack plant. 



A. cALLiLEPis. Of nearly the size, and quite the slenderness 

 of the last, the basal leaves larger by one-third and tapering to 



