16 PLANTS BAKERIAN^E. 



the branches of the caudex very slender and only loosely 

 leafy, the leaves thin, the elliptic-lanceolate blades J to 1 

 inch long, on slender petioles much longer, white- tomentose 

 beneath, sparsely villous above: scapiform peduncles 5 to 8 

 inches high, erect, slender; inflorescence of a sessile involucre 

 and 1 to 3 dichotomous peduncles from its base, the whole 

 number of involucres thus 7 to 9, all turbinate: perianths 

 yellow, small, very long-stipitate, silky villous, the inner 

 segments much longer than the outer, all obovate, obtuse. 

 Black Canon, 1 Aug., n. 696. Said to be cespitose in 

 rather small tufts. The inflorescence is like that of E. 

 Jamesii, though far less ample; and the real affinity is with 

 E. flavum. 



ERIOGONUM SALICINUM. Allied to E. microthecum and E. 

 Simpsonii, the tufted woody stems and long corymbose 

 panicled peduncles together more than a foot high: blade 

 of leaf lanceolate or oblong-lanceolate, about 1 J inches long, 

 the petiole little more than \ inch, stem and lower face of 

 leaves white-tomentose, surface glabrate: the long peduncles 

 perfectly glabrous and very glaucous: corymbose panicles 

 loose, diffuse, 8 to 10 inches broad: involucres very numer- 

 ous, small and few-flowered, broadly turbinate or subcam- 

 panulate, 5-toothed, the teeth erect, woolly within: perianths 

 less than a line long, segments oblong, obtuse, white. 



Habitat of the last; n. 375. The species would not easily 

 be distinguished from E. Simpsonii but by its broad and 

 short thin leaves. 



ASCLEPIADACE^E AND APOCYNACE.E. 



ASCEPIAS SPECIOSA, Torr. Grand Junction, 11 June, 

 n. 251. 



