HASSE—LICHEN FLORA OF SOUTHERN CALIFORNIA. 97 
On sandstone bowlders in the Santa Monica Range; near Murietta, Riverside 
County; not seen in the higher mountains; on Santa Catalina Island. Type locality 
near Oakland, California. 
6. Lecania subdispersa (Nyl.). 
Lecanora subdispersa Nyl.; Hasse, Lich. South. Calif. 12. 1898. 
Thallus crustaceous, of small, pale gray or grayish greenish, imbricated squamules 
forming small, scattered patches (in the type specimen squamules of sterile Lecania 
brunonis intermixed); apothecia sessile, minute, not exceeding 0.8 mm. in width; 
disk flat, dull reddish brown and blackening, the lighter colored margin at last disap- 
pearing; epithecium subcontinuous, light brown, staining violet brown with KHO; 
thecium 60 to 68 » high, violet brown at upper third, below colorless; paraphyses 
separate, colored at the clavate tips; hypothecium colorless or light brownish to brown; 
asci oblong-ellipsoid, 44 # long, 12 » thick; spores 8, ellipsoid, 9 to 13 y long, 3 to 4.5 p 
thick, bilocular; sterigma simple, straight; spermatia acicular, slightly curved to 
arcuate. 
On a sandstone bowlder in “Stone Canyon,’’ Santa Monica Range (type locality); 
at Newport Bluffs on sandstone. 
7. Lecania cyrtella (Ach.) Olivier. 
Thallus dark gray, when moist greenish gray, smooth or chinky and finely pulver- 
ulent, uniform, effuse; apothecia minute, impressed-sessile, from brick red with a 
lighter colored margin (the latter finally obsolete), darkening to brown and lurid 
blackish; epithecium grayish; paraphyses coherent; thecium 60 y high; asci inflated- 
clavate and subpyriform; spores 8, ellipsoid, bilocular, colorless, 10 to 16 # long, 3 to 
5 « thick; hymenial gelatine with iodine staining a dark claret color. 
On various barks in the Santa Monica Range. 
8. Lecania syringea (Ach.) T. Fries. 
Thallus whitish or grayish white, glaucous, smooth or finely rimose-areolate, KHO—, 
Ca(ClO),—; apothecia adnate-sessile, 0.25 to 1mm. wide; disk flat to light convex, 
pale grayish flesh color with a bloom to almost black, the moderate, thin, entire 
thalline margin persistent; epithecium subcontinuous, dull violaceous brown, gradu- 
ally paling downward; thecium 60 to 72 # high, colorless, with iodine blue; paraphyses 
subcoherent, not septate, clavate and slightly colored at the tips; hypothecium color- 
less; asci clavate; spores 8, oblong or ellipsoid-oblong, bilocular to quadrilocular (the 
former state more frequent with us), 12 to 20 » long, 5 to 7p thick, often slightly curved. 
A form occurs at Del Mar on dead bark of oak with a marked pruinose disk. 
Common in southern California; San Bernardino, Parish. Northern part of North 
America and Europe. 
The variety metabolica Nyl., with small, dark brown to blackish biatorine apothecia, 
occurs in canyons of the San Gabriel Range on bark of Acer macrophyllum. 
9. Lecania dudleyi Herre, Proc. Washington Acad. Sci. 12: 188. 1910. 
Thallus crustaceous, of cartilaginous, coarse, semiglobular warts, grouped or dis- 
persed, light brown to red brown, apothecia primarily immersed in the warts, then 
innate-sessile, forming a cupola to the thalline wart; disk dark brown, papillate, the 
proper margin indistinct, the gonidial layer subtending the hypothecium; thecium 
96 » high; paraphyses adglutinate; hypothecium colorless; spores 8, bluntly ellip- 
soid, bilocular, 12 to 16 « long, 6 to 7.5 » thick; hymenial gelatine dark blue with 
iodine. 
On calcareous rocks on the beach at White Point, near San Pedro, and at Highland 
Park, near Los Angeles, upon the same substratum. 
