HASSE—LICHEN FLORA OF SOUTHERN CALIFORNIA. 69 
turgid thalline margin, the disk finally immarginate, planoconvex, dull reddish; 
epithecial structure absent, replaced by the free apices of the slender, loose, adgluti- 
nate paraphyses; thecium colorless, 132 to 140 » high; hypothecium amber color, about 
40 » high; asci oblong-cylindric, nearly of the height of the paraphyses; spores 8, oblong- 
ellipsoid, 16 to 18 » long, 10 to 114 thick; hymenial gelatine with iodine a sordid pale 
blue, the pale yellow stained apicesof the paraphyses protruding above the epithecium; 
sterigma simple, straight; spermatia small, oval, about 2 # long, and less than 1 thick. 
On earth, foothills of the Santa Monica Range near the Soldiers’ Home, the type 
locality. 
2. Psorotichia arnoldiana (Hepp) Koerb. 
Crust blackish, thin, coralloid-crustaceous, loosely attached without true rhizine, 
forming small patches about 1 cm. in diameter; gonidia blue green, round or oval, 4 
to 12 in diameter, the larger irregular or ovoid, scattered ; apothecia numerous, small, 
globular, urceolate; epithecial structure indistinct; thecium colorless, 100 to 140 u 
high; paraphyses slender, loose, imbedded in hymenial gelatine, their apices free, 
not thickened nor colored; hypothecium pallid; asci cylindric and oblong-cylindric, 
about half the height of the thecium; spores 8, simple, oblong or obovate-ellipsoid, 15 
to 24 » long, 9 to 12 # thick; hymenial gelatine with iodine blue, turning brown. 
Among moss on soft disintegrating sandstone in the Strawberry Valley, San Jacinto 
Mountains, at 1,650 meters altitude. 
8. Psorotichia squamulosa Zahlbr. Beih. Bot. Centralbl. 13: 158, 1902. 
Thallus of dull black or dark olive green, cartilaginous, round-lobate squamules, 
forming small cushions; apothecia minute, immersed in thalline warts; disk concave, 
brown; paraphyses imbedded in hymenial gelatine, reddish brown and hardly thick- 
ened above; asci tubular, about 80 # long; spores 16 in asci, ellipsoid, simple, 9 to 12 4 
long, 5 to 6 # thick; hymenial gelatine light blue with iodine turning yellow; hypo- 
thecium brownish yellow. 
In crevices of disintegrating granite at Palm Springs, the type locality. Type in 
the hands of Dr. A. Zahlbruckner; duplicate in herb. Hasse. 
4. Psorotichia schaereri (Mass.) Arnold. 
Thallus almost black, forming an areolate-rimose or areolate-diffract, coarsely 
granular to coralloid, thin crust; apothecia numerous, from quite small to at length 0.5 
to 0.8 mm. wide, sessile; disk at first immersed, finally flat, round, black, slightly 
papillate, with a persistent, crenulate, concolorous proper margin, the apothecia and 
thallus forming a black crust to the unaided eye; epithecium continuous, pale brown- 
ish yellow, gradually fading downward; thecium 80 to 100 high, in places colorless but 
mostly yellowish brown of the same hue as or darker than the epithecium; paraphyses 
adglutinate, slightly clavate at the tips; hypothecium golden or orange brown, about 
half the height of the thecium; asci clavate and inflated-clavate, about equaling the 
thecium in height; spores 8, oblong-ellipsoid, simple, colorless, 12 to 18 » long, 7 to 9 
thick; hymenial gelatine with iodine blue, the hypothecium darker than the thecium, 
the epithecium not changed by the reagent; gonimia all light blue green with a thin 
membrane and without a gelatinous capsule, round or ovoid, 4 to 8 » in diameter, 
sometimes two joined at the flattened sides, 8 to 124 in diameter, or even four cohering, 
scattered. 
On sandstone and argillaceous shale in the Santa Monica Range. 
5. Psorotichia phaeococca (Tuck.). 
Synalissa phaeococca Tuck. Gen. Lich. 80, 1872. 
Thallus a coarsely granular, black brown crust, the granules separate or contiguous; 
apothecia numerous, small, globular, sessile, 0.2 to 0.5 mm. in diameter, disk sordid 
brick red, at first impressed, then larger, concave, with an entire proper margin con- 
colorous with the disk; epithecium continuous, yellow; thecium 120 » high, colorless, 
