ACCESSIONS TO ANTENNARIA. 143 



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Accessions to Antennaria. 



In the vast arid regions of our far Southwest, where also, 

 especially in mountain districts, antennarias abound, there is 

 a group of them the leaves of which appear to be marked by 

 a narrow border of clear white which is in elegant contrast 

 to the usually rather vivid green of the leaf as a whole 

 when viewed from above. This effect, however, is due to 

 the fact that leaves, green above and white beneath, have a 

 narrow margin upturned in such wise as to show a strip of the 

 lower-face whiteness around the green upper face. 



Twelve years ago (Pittonia, iii. 290) I published the first 

 member of this group, calling it A. marginata ; but in the 

 interval other plants from different parts of the desert South- 

 west, showing white margined leaves, all of which have been 

 labelled A. margiyiata^ some of them so named with my con- 

 currence hastily given, it now appears after further exam- 

 ination, must be excluded as distinct from the original of that 

 name. 



Antennaria Fendleri. Plant flaccid rather than rigid, 

 the growing stolons 2 to 5 inches long and assurgent, their 

 leaves increasing in size toward the ends and there ultimately 

 forming a rosette, green above, white tomentose beneath, those 

 of full maturity and of the season preceding more than an 

 inch long, the laminar part broadly obovate and very obtuse, 

 passing with little abruptness to the much larger petiolar 

 part, the green upper face showing, or even failing to show 

 •a faint white margin of the tomentum clothing the lower face : 

 scapiform flowering stems of the pistillate plant 4 to 8 inches 

 high, beset with 4 to 6 oblong acuminate suberect leaves an 

 inch long, and these not glabrous above: involucres large, 

 subcorymbose, the head as a whole 5^ inch high and subcam- 

 panulate, the green base of the involucre slightly arachnoid, 

 the numerous white tips of all bracts lacerate-toothed across 

 the summit which in the outer is obtuse, in the inner acutish : 

 staminate plant unknown. 



