CONTRIBUTIONS TO WESTERN BOTANY. 719 



This is very close to E . corymbostini and E . T/iom- 



SOIICB. 



To this species I would refer two specimens collected 

 by Rusby at Holbrook, Arizona, as vax . glutinosiim, being 

 glutinous above; having oblong, crenate leaves, 2' long; 

 involucre somewhat angled; flowers smaller. 



To this species I would refer as var. ambiguinn, No. 

 1688, Coville, collected on the east slope of the Sierras, 

 Inyo County, California, having narrow and entire leaves, 

 peduncles 4—6' long, small clusters of flowers and only 

 secondary and very short rays, the involucres much angled 

 and flowers very short, ^" long. 



Eriogonum reniforme var. comosum. 



No. 5036ao. April 12, 1894, near Hole in the Rock, 10 

 miles above Stone's Ferry, Nevada, in gravel, 1500" alt. 



No. 5036bj. April 12, 1894, ^^ miles below Mica 

 Spring, Nevada, in gravel, 2000° alt. 



Annual, 3-6" high; leaves radical, 10" long, and with a 

 slender petiole i' long, the blade round or somewhat 

 oblate, truncate to cordate at base, and fully developed 

 ones emarginate at the apex; the younger leaves are very 

 white, with long, comose, tangled hairs, the upper side 

 less so or even green; inflorescence trichotomously 

 branched, mostly at the very base of the stem; small 

 bracts at least woolly within and with hyaline margins ; 

 involucres erect on pedicels i' long or less, over i" high, 

 hemispherical, glaucous, with very short hyaline teeth; 

 flowers very small and exserted, ^" long, pubescent with 

 rough, flat, short, scale-like hairs; flowers reddish or 

 greenish yellow, outer lobes elliptical, inner lanceolate 

 and barely acute ; stems and pedicels glabrous and flowers 

 many in each involucre. 



This is readily separable from E . T/mrberihy the leaves 

 and flowers and the more open and slender habit; it is 



