118 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
2. Teloschistes flavicans (Swartz) Norm. 
Fruticulose, erect, terete or slightly compressed, branching, often intricately so, 
thallus smooth or with the apothecia fringed with fibrils and beset with soredia, 
apothecia usually subterminal (freely fruiting with us), disk flat to lightly convex 
the thalline margin thin, crenulate or entire, at last obscure; epithecium yellow, 
subgranulose, thin but better defined than in 7’. chrysophthalmus; thecium colorless, 
84 to 88 » high; paraphyses coherent, septate; hypothecium colorless; asci clavate; 
spores 8, ellipsoid, polari-bilocular with a connecting tube, 10 to 20 fe long, 6 to 12 
thick; thallus and disk with KHO purple, Ca(ClO),—. 
A conspicuous and handsome lichen on shrubs and branchlets frequent in our 
district. Widely distributed through the warmer regions. 
3. Teloschistes villosus (Ach.) Norm. 
Thallus fruticulose, erect or suberect, pale gray, compressed-canaliculate, minutely 
kispid with short white bristly hairs on the dorsal surface, the attenuate-laciniate, 
linear ultimate ramifications subterete; apothecia few, subterminal; disk concave, 
yellowish red, the thalline margin thin, obscure; epithecium finely granulose, yellow; 
thecium colorless 56 y» high; paraphyses free, branched, septate, capitate at the 
slightly colored tips; hypothecium colorless; asci clavate; spores 8, oblong-ellipsoid, 
11 to 14 » long, 4.5 to 6 » thick; hymenial gelatine with iodine blue, the dsci darkest 
at the top, KHO staining the epithecium and heads of the paraphyses a carmine 
red, the disk also, but the thallus not affected. 
On living and dead shrubs, Lower California, Orcutt; Point Loma near San Diego, 
on Lyciwm californicum; near Newport, Orange County, and as far north as Santa Cruz 
Island, off Santa Barbara, where it was collected by Mrs. Blanche Trask. 
BUELLIACEAE. 
The crustaceous thallus varying from uniform to squamulose, often becoming 
radiately lobed at the periphery; apothecia round, embedded in or sessile upon the 
thallus; spores mostly 8, colored, bilocular to quadrilocular or submuriform; sterigma 
jointed ; spermatia short, straight. 
KEY TO GENERA. 
Apothecia lecideine............ 2.000.000 002 e eee eee BuELtia (p. 118), 
Apothecia lecanorine....... 22.2.2 .2 000022022 Rivopina (p. 123). 
BUELLIA De Not. 
Thallus uniform to squamulose, a radiating lobation less pronounced than in the 
following genus; gonidia Protococcus; apothecia round, immersed, adnate or sessile; 
disk dark, blackish, with a dark, often horny hypothecium; spores as stated. 
KEY TO SPECIES. 
Thallus more or less lobed at periphery. 
Substratum earth; thallus pale ash color.............. 4. B. bolacina. 
Substratum rock (B. alboatra occasionally on bark). 
Thallus well developed. 
Light colored. 
Yellowish...........22.222.2.00.00200222. 3. B. lepidastra. 
White, mealy..............22............ 1. B. rinodinoides. 
Dark olive green to brown. 
Lobed at periphery..................... 6. B. badia. 
Not lobed at periphery................... 5. B. pullata. 
Thallus not well developed, whitish, the loba- 
tion indistinct............2.22............ 2. B. alboatra. 
