CATALOGUE. 149 



high, simple or sparingly branched, leafy below ; leaves all narrowly lanceo- 

 late, 12-18" long, lj-2" wide, 1-nerved or indistinctly 3-nerved, ciliate and 

 sparsely pubescent with whitish hairs, the radical narrowed into a very short 

 hairy petiole ; heads not large ; involucral scales in two series, narrowly lan- 

 ceolate, the outer greenish, hirsute, minutely glandular, the inner chartaceous 

 with a dark midvein ; rays purple, about 50, twice longer than the involucre, 

 about i" wide ; achenia hirsute ; pappus with minute bristles intermixed with 

 the longer ones. — This species will come into Euerigeron, and should be 

 placed near E. grandifiormn, from which, and from unijlorum, the lack of 

 wool on the involucre, besides the other characters, distinguishes it. The 

 caudex branches below the surface of the ground, and is often surculose, as 

 in many Asters. Uinta Mountains, on the ridge above Bear River Canon ; 

 10,000 feet elevation ; August. (534.) 



Erigeeon acre, L. Annual and perennial; stems 1-several, 6-10' high, 

 leafy, racemosely or somewhat corymbosely branched above, finely hirsute 

 with spreading whitish hairs, and glandular towards the summit ; radical 

 leaves obovate, narrowed into a slender winged stalk, ciliate and sparingly 

 pubescent; cauline ones from spatulate becoming linear; heads small ; involucre 

 in about 2 series, the scales linear-acuminate, outer ones glandular and some- 

 what hirsute, inner ones very narrow, smooth with the tip glandular ; rays 

 pinkish, equaling or slightly exceeding the disk, only tso of an inch in 

 width ; inner pistillate rayless flowers very numerous, the slender tube half 

 as long as the style ; achenia flat, more or less hirsute ; pappus of a few very 

 fragile bristles longer than the disk-flowers. — British America to Lake 

 Superior, Colorado and California ; also in Europe and Asia. Uintas, Bear 

 River Canon ; 8-10,000 feet altitude ; July, August. (535.) 



Eeigeeon lonchophyllxjm. Hook. {E. raceviomm^ Nutt.) Perennial ; 

 stems leafy, softly hirsute with spreading hairs, 4-12' high, numerous from a 

 very leafy csespitose base ; leaves 2-4' long, 1-3" wide, hirsutely cihate and 

 somewhat pubescent, the radical oblanceolate and narrowed into a long 

 slender petiole, the cauline linear and grassy ; heads racemose on long pedun- 

 cles, small ; involucral scales linear, acute, hirsute with white hairs ; rays very 

 narrow, (as in E. acre,) exceeding the disk about 1" ; tubular pistillate flowers 

 none ; achenia sparingly pubescent ; outer pappus of minute setae, evident, 

 inner bristles a little shorter than the disk-flowers. — Saskatchewan to Cali- 

 fornia and Colorado, (Vasey 245, in part.) Diamond Valley, Nevada, and 



