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THE OTTAWA NATURALIST 



VOL. XXV. OTTAWA, JUNE, 1911 No. 3 



SOME CANADIAN ANTENNARIAS. IV. 



By Edward L. Greene. 



The collections of this genus made by Mr. James M. Macoun 

 in the Hudson Bay region in the summer and autumn of 1910 

 having been submitted to me for determination, I find the 

 specimens of such deep interest as to call for a detailed account 

 of them, two out of the four numbers seeming to represent 

 species hitherto unknown to science. Another illustrates a 

 type first published by me some fourteen years ago, namely : 



Antennaria angustata, Greene, Pittonia III., 284 (1898). 

 The material on which this as a species was based came from 

 the coast of Hudson Strait, where it had been collected by Dr. 

 Bell, in 1884. It was obtained by Dr. Bell again in 1897 at two 

 stations, both of them in Baffin Land, and these two collections 

 are numbered 18744 and 18745 in the herbarium of the Geological 

 Survey. Mr. Macoun, in 1910, found it at Port Burwell, Hudson 

 Strait, the specimens having been gathered on July 18th; an 

 early dale for it, the stems little more than an inch high, though 

 quite in flower. They bear the Geological Survey number 

 79271. The species holds in all the collections its characters of 

 a narrow foliage, very narrow and acute involucral bracts, and 

 these of a much darker color than those of any phase of A. 

 alpina. The stems are also almost invariably monocephalous. 

 There is a good representation of the species in specimens 

 gathered in the northern extremity of Labrador by Mr. A. P. 

 Low, July 21st, 1897 ; yet this is no great extension of its range^ 

 since it is a part of the Hudson Strait region; yet I see reason 

 to apprehend that at least a part of the so-called A. alpina of 

 Greenland may be referable to .4. angustata rather, though the 

 plant is larger, and the heads always several at the summit of 

 the stem. There appears as yet no trace of the male plant of 

 this species. 



Antennaria isolepis sp. now Plant somewhat loosely 

 cespitose, the matted leafy branches rather rigid and suf- 

 frutescent, the stolons or surculi of the season an inch long: 

 leaves % inch long or somewhat more, oblanceolate, acute, not 

 verv firm, above thinly yet permanently tomentose, the indu- 



