68 BOTANICAL GAZETTE [JANUARY 
the zygospore, but their interpretation is not yet clear. The coenocen- 
trum persists until quite late, and in the mature zygospore there are 
many nuclei of the same size as those in the mycelium. 
Oil is diffused throughout the young zygospore, but later the oil 
coilects in larger globules. In the mature zygospore there is usually 
only one globule of oil in the center, and the protoplasm, unmixed with 
oil, is pressed in a comparatively thin layer against the wall. 
These observations are based on the examination of over 2000 zygo- 
spores, sectioned serially, and much more material must be examined 
before the detailed account with illustrations will appear.—FLORENCE 
A. McCormick, The University of Chicago. 
A NEW CALIFORNIAN CEANOTHUS 
Ceanothus fresnensis Dudley, sp. nov.—Low shrub, forming rounded 
mats, 2-4 dm. high, with stout rigid "branches, young twigs tomentose: 
leaves opposite, oblanceolate to (and more commonly) broadly obovate, 
entire or usually irregularly denticulate toward the summit, coriaceous 
and involute, densely tomentose on both surfaces when young, glabrate 
above in age; petioles 1 mm. long, tomentose: umbels terminating very 
short branchlets; fruiting pedicels 8-12 mm. long: capsule 6 mm. high, 
about 5 mm. broad; horns subterminal, erect or spreading, 1 mm. long; 
styles very slender, divided to below the middle. 
In foliage aspect this species closely resembles some forms of Cea- 
nothus vestitus, but that is an erect shrub, often a meter high or more, 
with much smaller capsules, which are broader than long, and which have 
minute dorsal horns. In fruit characters it is closely akin to Ceanothus 
cuneatus, from which it differs primarily in its low habit and small tomen- 
tose, denticulate leaves. 
The name, Ceanothus fresnensis, was proposed by the late Professor 
W. R. Duptry some ten years ago for a plant collected by Hatt and 
CHANDLER in the southern Sierra Nevada. The label on the type 
specimen, which is deposited in the Dudley Herbarium of Stanford 
University, reads as follows: ‘Stevenson Mts., Pine Ridge, Fresno 
County, California, altitude 5300 feet, only locality seen. Growing 
with C. cordulatus.” Hatt and CHANDLER 407, June 1goo. During 
the past summer I found another small colony about 100 miles north of 
the original station, at Confidence, Tuolumne County, where it was 
growing on a dry ridge at an altitude of 4000 feet in open yellow pine 
woods associated with C. cordulatus (ABRAMS 4727).—LERoy ABRAMS, 
The Dudley Herbarium, Stanford University. 
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