78 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
7. Heppia conchiloba Zahlbr. Beih. Bot. Centralb]l. 18: 157. 1902. 
The writer is without a specimen; therefore the original description of Dr. A. Zahl- 
bruckner is given: 
“‘Thallus substrato parte centrali innatus, foliaceus, 6-15 mm. in diam., radiato- 
lobatus, lobis conchiformibus, auriculatim confertis, marginibus granuloso-scabridis, 
siccus coriaceo-cartilagineus, cervino-murinus, opacus, madefactus prasino-virescens, 
usque 0.3-0.5 mm. crassus, superficie punctulato-granulosus, subtus undique hyphis 
hypothallinis creberrimis, thallo longioribus, ramosis et intricatis, 9-10  crassis, 
leptodermaticis, septatis (cellulis 17-20 » longis) vestitus; superne pseudoparenchy- 
maticus, gonidiis destitutus, pseudocellulis rotundato-angulosis, sat magnis, 10-13 p 
longis, membrana modice crassa, in seriebus 3-5 horizontalibus dispositis; stratum 
medullare totum gonidia continens; ex hyphis verticalibus, leptodermaticis, ramosis, 
5-5.5 yt crassis, septatisque (cellulis usque 17 » longis) formatum; gonidia Scytonemea, 
glaucescenti-virentia, cellulis magnis, 8-12 » in diameter, glomeruloso-concatenatis. 
Apothecia et pycnoconidia non visa. 
“Ad terram agillaceo-sabulosam, Palm Springs, in lateribus orientalibus montium 
San Jacinto.”’ 
8. Heppia polyspora Tuck. 
Thallus of dark olive green squamules, round, entire or lobulate, 2 mm. and less 
in width, flattened-convex and diminishing in thickness toward the periphery, 
brownish beneath, attached by central hyphe to the substrate; squamules containing 
from a few to 8 apothecia with punctiform, depressed disks; epithecium colorless in 
the center, becoming brown at the circumference, subcontinuous; thecium 100 tol16 
high, colorless in the center and pale brownish outward; paraphyses loosely adgluti- 
nate, the tips not thickened nor colored; hypothecium pale yellowish; asci subcylin- 
dric, nearly equaling the thecium in height; spores numerous, globular small 2 to 4 
yin diameter; hymenial gelatine with iodine blue. 
On sandstone, Santa Monica Range; on granite, Elsinore, Riverside County. 
9. Heppia zahlbruckneri Hasse, Bryologist 14: 100. 1911. 
Thallus of short, erect, terete to subterete lobules, 1 to 2mm. thick and 3 to 3.5 mm. 
high, aggregated into groups and loosely attached to the substratum by medullary 
hyphee; tops clavate to bulbous, often dilating and assuming a flattened apex; of 
olive green color or darkening; pseudoparench ymatous cortex, containing the gonidial 
layer, 40 » thick, the pale green Scytonema gonidia 6 to 12 in diameter; medullary 
layer composed of loosely interwoven hyphe, notably at the axis, from 2 to 3 ue thick; 
apothecia 1 to 8 in a lobule head, immersed, marked by a punctiform perforation of 
the cortex, this sometimes slightly dilated to not exceeding 0.25 mm. in width and 
depressed; disk dull brown, the flesh-colored, flattened-globular hymenium beneath 
the gonidial layer; thecium 140 p high, colorless; paraphyses loosely coherent, slender; 
hypothecium colorless or of a pallid yellowish tint; asci quite numerous, the upper 
part slightly attenuate, the membrane about 3 #« thick throughout, 112 “long, 28 to 32 
u thick, the immature asci shorter with solid tops, spores globular, 4.5 to 7 fin diameter 
(the liberated spores giving the larger dimension), 24 to 32 being contained in the 
ascus; hymenial gelatin with iodine a pale indigo blue, changing to sordid pale green- 
ish; KHO giving a bronze red color to the gonidial layer; spermatia not seen. 
On quartz in Rubio Canyon, San Gabriel Range, near Pasadena, the type locality. 
Collected by Mr. C. C. Kingman. It has since been sent from Riverside by Mr. F. M. 
Reed, and collected by the author at Eden Hot Springs, Riverside County: found 
also (rarely) in the Santa Monica Range. 
The species differs from others with similar spore measurements in the shape of the 
thalline lobules. 
Type deposited with Doctor Zahlbruckner; duplicate in herb. Hasse. 
e 
