A DECADE OF NEW POMACEÆ. 131 
oblong, acutish, simply serrate from above or below the 
middle, the base entire, notably inequilateral,the lowest pair 
very small, of one-fourth or one-fifth the size of the others,the 
largest 13 inches long, glabrous above, tomentulose beneath, 
as also the rachis: winter buds densely tomentose: cyme 
short-peduncled, ample. 
This species, exceedingly well marked by its peculiar 
leaflets and indument, especially of the winter buds, is 
known to me only in Sandberg's flowering specimens from 
* Woods, in St. Louis Co., Minnesota," collected in 1890. 
SORBUS OCCIDENTALIS, Greene, Fl. Fr. 54, as to the name 
only. Pyrus occidentalis, Wats. Proc. Am. Acad. xxiii. 263, 
excluding the Californian specimens and habitat. Mr. Wat- 
son's diagnosis was drawn mainly from specimens of an 
alpine shrub of the higher mountains of Oregon and Wash- 
ington. This, the type of the species, is marked by nu- 
merous elongated (linear-oblong) dots on the puberulent 
branchlets; by long-peduncled leaves consisting of four or 
five pairs of very obtuse leaflets which usually appear to 
be entire except at and near the apex; and by pyriform 
coral-red glaucescent fruits. 
These are the salient characters, as they appear in speci- 
mens collected by myself on Mt. Rainier in 1889. 
SonBus Cartrornica. S. occidentalis, Greene, Fl. Fr. 54, 
as to the character, and Californian habitat. Shrub or 
small tree many times larger than the last; branchlets 
glabrous, neither reddened nor notably dotted, the dots 
when present not elongated: leaves short-petioled ; leaflets 
sharply and often doubly serrate almost or quite from base 
to apex, mostly in 5 or 6 pairs: fruits of a more scarlet or 
crimson red and not glaucescent. 
Common at middle elevations in the Californian Sierra, 
far below even the subalpine regions, and not remote from 
the heated plains of the interior; an excellently distinct 
species, as compared with true S. occidentalis, with which, 
however, Mr. Watson confused it. 
