HASSE-——-LICHEN FLORA OF SOUTHERN CALIFORNIA. 7 
MICROGLAENA L6nnr. 
Thallus crustaceous, uniform; perithecia immersed in the thalline verruce, globose, 
entire, soft, light in color, dark only at the apex; paraphyses slender, branching, 
asci oblong-cylindric, 2 to 8-spored; spores ellipsoid, muriform-multilocular, colorless 
to brownish. 
KEY TO SPECIES. 
Thallus sordid whitish, squamulose...............2.....2.+-- 3. M. subcorallina. 
Thallus dull greenish, minutely verruculose. 
Spores brown. ......---------0- 2222-2 ee eee cece eee e eee | L. M. hasset. 
Spores not brown........-.----------- 2+. eee eee ee eee eee 2. M. sychnogonoides. 
1. Microglaena hassei Zahlbr. Beih. Bot. Centralbl. 18: 152. 1902. 
Thallus epiphloeodal, thin, dull grayish green to slightly olive green, minutely 
verrucose, effuse, with Palmella gonidia; perithecia simple, solitary, sessile, minute; 
0.2 to 0.3 mm. in diameter, the greater part covered by thallus, only the black, punc- 
tiform apex being free, dimidiate, olive brown, the ostiole punctiform; paraphyses slen- 
der, branching filiform, intertwining, eseptate, persistent; asci numerous, clavate, 
straight or slightly curved, the membrane thickened at the rounded apex, 90 to 110 
long, 20 to 30 » thick; spores 8, from colorless soon brownish, ellipsoid to ovoid-ellipsoid, 
muriform, 20 to 30 » long, 9 to 13 » thick. 
On various barks, principally on Juglans californica. Type locality in Sepulveda 
Canyon of the Santa Monica Mountains, near the Soldiers’ Home. 
Type deposited with Dr. A. Zahlbruckner in Vienna, Austria; duplicates in herba- 
rium of the New York Botanical Garden, U.S. National Herbarium, and herb. Hasse. 
2. Microglaena sychnogonoides Zahlbr. Beih. Bot. Centralbl. 18: 151. 1902. 
Thallus epiphloeodal, thin, effuse, subverruculose, grayish greenish, KHO —, 
Ca(Cl O).—, with Palmella gonidia; perithecia minute, 0.3 to 0.5 mm. in diameter, 
dispersed, depressed, semiglobose, the lower part surrounded by thallus, brownish 
gray or brown, minutely umbilicate, simple, yellowish red with iodine; paraphyses 
slender, filiform, about 1 « thick, loosely branching and interwoven; asci subcylin- 
dric, straight, 90 to 110 » long, 17 to 20 » thick, the membrane thickened, 4-spored; 
spores colorless, muriform, 20 to 34 » long, 9 to 11 » thick. 
On the smooth bark of limbs of Quercus agrifolia. Type locality, Santa Monica 
Range near the Soldiers’ Home. 
Type deposited with Dr. A. Zahlbruckner; duplicates with Dr. A. C. Herre and 
in herb. Hasse. 
8. Microglaena subcorallinasp. nov. 
Verrucaria subcorallina Nyl. in litt., name only. 
Thallus epiphloeodal, moderately thick, minutely squamulose or warty, sordid 
whitish, or sordid grayish dun in color; apothecia imbedded in thalline warts, solitary 
or rarely two upon a squamule, prominent, semiglobular or subconical, slightly darker 
than the thallus and, when moist, darkening toward the apex around the impressed 
vertical aperture; perithecium soft, globose, entire, pale reddish on section; para- 
physes capillary, densely intertwining, longer than the asci, apparently branching; 
asci numerous, mostly lightly curved, cylindric, a little thicker above the base, the 
membrane thick (about 4 ); spores 8, colorless, ellipsoid in outline, muriform- 
multilocular, with 5 to 8 septa in the transverse (short) axis, each loculus with 1 to 3 
septa in the long spore axis; spores generally disposed longitudinally in single file, 
36 to 44 » long, 14 to 20 » thick; with iodine, spores and ascus contents staining a rich 
yellow, the ascus membrane and paraphyses not staining. 
On smooth bark of young oaks on the western slope of the San Gabriel Range at 
about 800 meters altitude, along the ‘‘New Trail” to Mount Wilson (the type locality). 
Type deposited with Dr. W. Nylander in 1897; duplicate in herb. Hasse. 
