PuatTe 2720. 
HAZARDIA DETONSA, (Greene. 
Composita. Tribe ASTEROIDER. 
H. detonsa, Greene, Pittonia, i. 29; species //. cane Sea 
simillima, a qua differt (tide pend foliis firmioribus argute serra tis. 
CairorniA : Island of Santa Cruz, E. L. Greene. 
Some years ago Dr. Ed. Palmer collected Specimens of a shrubby 
composite in Guadalupe Island, off the coast of Lower California, which 
the late Dr. Asa Gray at first regarded as the ‘hts of a new genus, 
but subsequently described (Proc. “Amer. Acad. xi. p- fe under the name 
of Diplostephium canum. Since then Prof. E L. Greene 
Franceschi, and others, have collected some closely allied plants i in the 
smaller islands of Santa Cruz and San Cl four or five 
degrees further north. Prof. Greene has dealt with them in ths lace 
cited above, where he founds the genus Hazardia and describes three 
species, namely, //. cana, H. detonsa, an serrata. Since then 
several other quite distinct species have been added to the genus 
u ave some doubts about the specitic distinctness of the three 
insular forms described as such by Prof. Greene. Sp fuller material, 
ould be united ; but that point can only % miles by examining a 
large number of specimens. On the other hand, a plant collected by 
A. W. Anthony in San Clemente — distri ates — the name 
cana, seems to be quite distinct.—W. Bortinc Hems.ey. 
Fig. 1, one of the innermost bracts of the involucre; 2, a ray- flower a disk 
flower; 4, a pappus-bristle ; 5, anthers; €, stigma and part of style. ail ondebjele 
