— 6i — 
Yosemite Valley on the smooth bark of oak branches, etc., also on twigs, 
dead and living, in the San Gabriel range, Los Angeles County. 
Theloschistes villosus (Ach.)Norm., on Lycium Calif ornicum Nutt, and 
other shrubs at Point Loma near San Diego. 
The apothecia are rare and the plant is smaller than the type from 
Lower California, where Mr. C. R. Orcutt collected it. 
% 
Placolecania candicans (E. Fr.) A. Zahlbr. , Ascolichenes in Engler & 
Prantl, 1907, p. 20s. =Lec'anora candicans Schaer.. Crombie Bi. Li. 
1894, p. 390. 
Thallus appressed, forming round patches, areolate-rimose in the 
center, or sqamulose, the scales somewhat discrete roundish lobulated, at the 
circumference radiate, the radii also lobulated. KHO-. Apothecia sessile ; 
disk dull brownish-black with a faint bloom and a turgid, finally crenulated 
thalline margin; epithecium grayish-brown, subcontinuous ; thecium color- 
less, 96// to 102/^ high, with iodine deep blue; paraphyses coherent, strict, 
neither septate or forked ; the tips slightly clavate and colored ; hypothe- 
cium nearly colorless or with a faint yellowish tint: asci clavate; spores in 
8s, oblong-ellipsoid, ii/^ to 17/^ long, 4/^ to 5// thick; spermatia staff shaped, 
4/4 to 5/4 long, 1/4 thick; the gonidial layer is continuous under the hypothe- 
cium. On calcarious rock, Catalina Island. 
Bacidia dementis, Hasse sp. nov. 
Thallus crustaceous, moderately thick, subdeterminate, whitish, coarsely 
granular and rugulose, becoming chinky, KHO“, Ca (Cl. O) 2-. Apothecia 
sessile, small, 0.2 to 0.8 mm. wide; disk primarily flat, brown-black, soon 
convex, the proper margin concolorous, soon absolete; epithecium colorless, 
granulose; thecium colorless to pale brownish at the circumference ; paraphyses 
not coherent, loosely intertwining, branched, not thickened nor colored at the 
tips; hypothecium yellowish-gray; asci clavate to subcylindric, 68/4 to 112/4 
long, 12/4 to 16/4 thick, the membrane not at all or slightly thickened at the 
top in the larger asci; spores in 8s, cylindric, 60/4 to 80/4 long, 4/4 to 5/4 
thick, both ends equally bluntly obtuse without attenuation, 15 to 17 locular, 
mostly once or twice gently curved; hym. gel. gives no reaction with 
iodine, only the asci becoming yellow, the escaped spores do not stain with 
the reagent; hypothecium brown, not changed with KHO; spermagones seen 
as minute black protrusions, sterigma straight, simple; spermatia acicular^ 
straight or lightly curved, 10/4 to 12/4 long. 
Collected at San Clemente on bark of Heteronieles arbutifolia Roera. by 
Bl. Trask. Since then I have found it on the same substrata in St. Ynez 
