168 CALIFORNIA ACADEMY OF SCIENCES. 



EuPATORiUM, sp. — San Pablo. 



Brickellia hastata Benth. — Santa Margarita Island. 



Brickellia Coulteri Gray.— San Gregorio. 



Brickellia frutescens Gray. — Agua Dulce. 



Gutierrezia Euthami^ T. & G.— San Quintin. 



var. MICROCEPHALA, Gray. — Agua Dulce. 



Greenllla ramulosa Greene. Probably this species, 

 though from the brief description certainty of identification 

 is impossible. It is often two feet high, the clavate heads 

 are not as conspicuously radiate as in the typical species; the 

 flowers of both disk and ray are white, changing to rose- 

 purple; the akenes are 2 mm. long, densely and strongly 

 upward hispid, not glandular; the pappus is multisetulose; 

 in the ray one-quarter and in the disk three-quarters the 

 length of the akene. This plant brings the genus much 

 nearer Gidierrezia, of which it has the style tips and recep- 

 tacle, and some species of which it strongly resembles. 

 Dr. Gray includes it in his subtribe Heterochromece, but all 

 the flowers in this species, and apparently those of G. Ari- 

 zoiiica, are white. — Llanos de San Julian, San Eaimundo. 



Aplopappus gracilis (Nutt.) — San Sebastian, San En- 

 rique. 



Aplopappus spinulosus (Pursh.) Some of the specimens 

 from San Gregorio have leaves with obtuse teeth, and are so 

 glandular that they stain the drying-papers. Possibly they 

 may be A. arenarius Benth. — San Gregorio, San Sebastian 

 and northward. 



Aplopappus cuneatus Gray. — Ubi. 



Aplopappus vernicosus. Suflrutescent, growing in clumps, 

 12-18 inches high, with slender intricate branches, slightly 

 pubescent, becoming glabrous and resinous: leaves 5-10 

 mm. long, punctate, cuneate-obovate, with 3-5 spinulose 

 lobes and an enlarged base decurrent upon the angled stem 



