(f3 CONTRIBUTIONS TO WESTERN BOTANY 
Xanthisma Texanum DC, I think this genus is more intimately 
relatedjto Grindelia than to Aplopappus,and it has the habit of 
that genus, { 
lampodium minutiflorum n. sp. No. 27738, La 
Barranca, Guadalajara, Nov. 17 1930, Weak and widely spread- 
ing annuals with filiform stems intricately branched. th in- 
; others without bracts and with linear and ab- 
fl . 1 flowers deciduous. Plants 1-2 ft. long. Hairs 
cis = tapering, Pedicels 2-10 mm. long. Thia grows with the 
scales 4 mm. long, which are about four, then come 2-4 fertile flow- 
ers with 1-3 hyaline, oblong 
naked flowers with linear and abortive 
