HASSE—LICHEN FLORA OF SOUTHERN CALIFORNIA, 41 
less; asci clavate, nearly equaling the thecium in height; spores linear-oblong, sub- 
fusiform, 8 to 13 » long, 2 to 4 » thick, diagonally or longitudinally disposed; thecium 
with iodine blue, the epithecium with NO, reddish. 
On dead pine wood, Tehachapi Mountains, at 1,600 meters altitude; bark of Pseu- 
dotsuga macrocarpa in the San Gabriel Mountains at a like elevation; dead wood and 
fence boards, Santa Cruz Mountains, at 1,000 meters, Herre. New England States; 
middle and northern Europe. 
16. Lecidea latypaea Ach. 
Thallus of pale, whitish or light ash-colored, small, round, semiglobular or flattish 
verruce, these scattered or congregated, KHO+ yellowish, Ca(ClO),—; hypothallus 
absent; apothecia closely or somewhat deeply appressed, the disk black, mostly flat, 
round to irregularly angulose or lobulate, finally convex, the margin thin, concolorous 
or brownish or grayish black, not crenulate, but following the irregularity of the disk 
and finally obscured; epithecium continuous or subgranulose, bluish black to brown- 
ish; thecium colorless to grayish, about 80 » high, stained intense blue with iodine, 
especially in upper part; paraphyses free to loosely coherent, the tips bluish black; 
hypothecium yellowish brown to brown, thick; with KHO the epithecium light 
brown, the hypothecium yellowish; asci clavate or subinflated clavate, 48 to 52 p 
long, 20 » thick; spores in 8’s, broadly ellipsoid, often with one or two globules that 
disappear after KHO, 10 to 16 p long, 5 to 12 » thick; spermatia not seen (‘‘arcuate, 
acicular”’). 
Widely dispersed; on sandstone, Santa Monica Mountains; calcareous rock, Santa 
Catalina Island; Santa Cruz Mountains at Laguna Creek, Herre. Eastern and middle 
United States; Europe; northern Asia. 
17. Lecidea catalinaria Stizenb.; Hasse, Bull. Torrey Club 24: 447. 1897. 
Lecidea catalinaria Stizenb.; Hasse, Lich. South. Calif. 14. 1896, nomen nudum. 
Thallus yellow, verruculose, the verruce distinctly separate, congregated or dis- 
persed, round, smooth, or sometimes larger, then oblongand obscurely lobulate, KHO+ 
yellow, Ca(ClO),+ red; hypothallus obscure; apothecia innate and adnate, round, 
often grouped and then angular; disk black, flat, then lightly convex, the margin at 
first prominent, then partly obscured; epithecium pale bluish or brown; thecium 60 
to 80 » high, colorless; paraphyses loosely coherent, not jointed nor forked, slightly 
capitate at the blue or brown apices; asci clavate, 54 to 76 » high, 16 to 20 » thick, the 
membrane thin, thickened above; hypothecium pale yellowish, in places almost 
colorless, with iodine permanently dark blue; spores in 8’s, obovoid-ellipsoid and 
round-ellipsoid, the endospore and exospore distinct, 12 to 17 » long, 6 to 9» thick, 
not affected by iodine. 
Type locality near Avalon, Santa Catalina Island, on a sandstone bowlder, and at 
the isthmus of the island on volcanic rock. 
18. Lecidea enteroleuca Ach. 
Thallus mostly minutely verruculose, the small whitish or pale sulphur-colored 
wartlets also often fiattish or squamulose, scattered or congregated or almost disappear- 
ing, KHO+ yellow, Ca(ClO),—; (occasionally this last reagent giving a red color of 
the thallus); hypothallus indistinct; apothecia subinnate to sessile, small, 0.25 to 
1 mm. wide, dispersed or grouped; disk black, dull or partly shining, flat, the proper 
margin concolorous, entire, the disk later convex and the margin obscure or excluded; 
epithecium continuous or subcontinuous, bluish black; thecium colorless; paraphyses 
lax-coherent; hypothecium pallid or dark; asci inflated to saccate; spores simple, 
ovoid or broadly ellipsoid, 9 to 18 » long, 6 to 10 » thick; spermatia acicular, arcuate. 
On rocks; frequent and widely distributed. Varying as to thallus and hypothallus, 
causing the creation of forms, of which the following are found in our territory. 
