1 883. | Botany. 973 
put. So we may safely conclude that P. cocos possesses no prac- 
tical value; but it is unsurpassed in interest from a botanical 
standpoint, especially since so little is known concerning it.” 
New PLANTS FROM CALIFORNIA AND NEVADA, ETc. IL—Cym- 
opterus corrugatus, n. sp.—Nearly acaulescent, perennial ; summit 
of the stipe bearing a whorl of usually three leaves and three or 
more sessile or long peduncled compound umbels; leaves ovate, 
leathery, veiny, pinnate or occasionally twice- pinnate, leaflets ter- 
nately or rarely pinnately parted or lobed, broadly ovate to cor- 
date-ovate, lobes with a broadly cuneate base and rounded, very 
obtuse teeth, each with a white, very sharp mucro ; petioles nearly 
equaling the blade, which is 3’—4’ long ; root-leaves none; invo- 
lucre absent or rarely present as a leafy bract; summit of the 
peduncle much thickened, and with the pedicels fleshy, involucels 
unilateral, scarious, of many scales united into a cup or almost 
entirely separate, scales tapering into a fine, thread-like point ; 
flowers white, short-stalked ; pedicels 6’’—1’ long; fruit 3” long, 
oblong, curved, with very thin corrugated wings. 
This plant resembles C. fendleri and C. glomeratus. 
Rose creek, Nevada, June, 1882. 
lva nevadensis, n. sp.—Annual, 6’-12’ high, widely branching 
from the base; strigosely pubescent all over with blunt, many- 
4,'-134' wide ; principal spines 4, straight, angled and somewhat 
aA 
except when young, then red at base, springing from a very 
short but a Sot flowers light yellow, about 1 A „long 
and wide; petals oblanceolate or obovate, rounded, margin irreg- 
war; ovary obovate, sessile or short-stalked, covered with 
bunches of white or yellow, often hooked, short spines and 
crisped wool; fruit not mature. 
— Encinada, Mexico, April, 1882. aera 
