PLATYSTEMON AND ITS ALLIES. 183 
ments short, mostly truncate under the anther, the inner 
narrower, some of them even lance-linear and attenuate un- 
der the anthers; both petals and stamens persistent over the 
mature fruit: carpels 6 to 12, much constricted, only ob- 
scurely carinate dorsally, 5 or 6-jointed, the turgid joints 
curiously subcristate-sculptured in the middle of each side 
and with or without traces of lateral ridges running from 
the cristate protuberances. 
This excellent species, the superficies of whose carpels is 
so peculiar, yet so difficult to describe, was first detected on 
_ Sheet 2770 of the Herb. Calif. Acad. where a small specimen 
is glued down along with several of the very different P. 
tessellatus, all purporting to have been gathered at Antioch, 
April, 1889, by Brandegee. Butin U.S. Herb. exists a sheet, 
under the same label, which is P. exsculptus without admix- 
ture, 
34. P. rugosus. Subacaulescent, the short branches 
densely leafy, the many peduncles twice or thrice as long, 
the whole 5 to 10 inches high and densely hirsute with 
brown hairs: corolla an inch broad, slightly turbinate at 
base: stamens rather few ; filaments of the outer oblong- 
spatulate, of the inner spatulate-linear, obtuse to nearly 
truncate under the long linear anthers, and with the petals 
persistent over the mature carpels; these 7 to 9, about 4 or 
5-jointed and rather coarse, dark-brown, traversed dorsally 
by a very prominent obtuse keel-like midrib, and on the 
sides by quite uninterrupted and very prominent turgid 
ridges without other marking: stigmas very short, not as 
long as the style-like vacant termini of the carpels and sub- 
ulate-linear, 
Pilot Ridge, Eldorado Co., in the foothills of the Sierra 
Nevada, Miss Eastwood; the year not indicated. The spec- 
imens are labelled P, crinitus in Herb. Calif. Acad. by Miss 
