PITTONIA. 309 
EXTENSION OF OSMARONIA. 
While yet resident on the Pacific Slope of the Continent, I 
became apprehensive that the genus Osmaronia would event- 
ually be found quite other than monotypic. I could not easily 
reconcile the low rigid copiously flowering and fruiting shrub 
of the hills about San Francisco Bay with the tall lax large-leaved 
sparingly floriferous type of the region of the Columbia River 
and Puget’s Sound from 800 to 1000 miles northward ; this 
doubt about the identity of the small bush persisting still, in the 
face of the fact the northern shrub or tree had been found along 
the borders of coastal woods well southward upon the northern 
half of California. 
After the lapse of another ten years, and with the advantage 
of having before me much good -herbarium material, the 
distinctions of the following become clear enough. 
O. CERASIFORMIS, Greene, Pitt. ii. 191; in small part only of 
Bay-Reg. Man. etc. Arborescent, commonly 8 or 10, occasion- 
ally 12 or 15 feet high: leaves 3 or 4 inches long, obovate to 
cuneate-oblong, acutish or obtuse, cuspidate-mucronate, thin 
and membranaceous even in maturity, more or less villous- 
tomentulose beneath at all stages, strongly so when young: 
pulp of mature drupes almost none. 
Var. LANCIFOLIA. Leaves commonly 5 or 6 inches long, 
elliptic-lanceolate, ending in a long cusp-like point: pribescence 
and drupes as in the type. 
Var. NIGRA. Leaves smaller, mostly 3 inches long, texture 
and pubescence of type: drupes with more pulp, without bloom © 
and quite black. 
This the type species of the genus is of the widest range, 
occurring from British Columbia all along the seaboard south- 
A a Ny rd Ais OM a oe 
Prrronta, Vou. V. Pages 309-812. 9 Sept., 1905. 
