22 BOTANICAL GAZETTE [ JANUARY 
me triangular sinus flanked by unaltered lobes. Involucral 
lobes 2—4-irregular toothed 
(not entire, ciliate, as de- 
scribed). Walls of the 
involucre thin-membran- 
ous, columnze _ wanting, 
external hairs few, setose. 
Seed ashen, globular-pyri- 
form, 1.1% Jong, O.geg 
broad, the facets marked 
by 3-4 shallow punctate 
culate dividing ridges, 
the tubercles tipped with an amber-colored mucilaginous 
accretion. 
Dr. Palmer’s 896 Durango agrees fully with C. G. Pringle’s” 
2063 and 2302 Jalisco specimens. 
§ Pomnserrtia. 
EUPHORBIA DENTATA LASIOCARPA Boiss. DC. Prod. 15: 72. 
In this form and in the 
species as well, the involucral 
lobes are not dentate as des- 
cribed, but long-fimbriate. The 
four missing glands are re- 
placed by an equal number of 
linear involucral lobes. Seeds 
dark reddish-brown, 2.4™™ long 
by 2™™ broad, sharply tri- 
angular in section, the facets, 
especially those of the dorsal 
surface, roughly white tuber- 
culate. 
Dr. Palmer’s 660 in part 
and 895 Durango Specimens™ are the most usual form of this 
variety. 
pits deepened by tuber- 
ase 
CR een ay f 
