HASSE—LICHEN FLORA OF SOUTHERN CALIFORNIA. 57 
6. Rhizocarpon athalloides (Nyl.) 
Lecidea athalloides Nyl. Bull. Soc. Bot. France 7: 503. 1860. 
Crust, gelatinous when moist, indeterminate, sordid whitish ochraceous, indistinctly 
rimose or granulate, of a loose web of hyphe, KHO—, Ca(ClO),—; apothecia innate, 
0.5 to 1.5 mm. wide, primarily covered by a thallus that finally ruptures, leaving a 
coarctate, lacerated rim surrounding the dull black, flat or gently convex disk, whe 
moist with a shade of brown, round or irregularly oblong with an indistinct, entire or 
crenulate and wavy proper margin; epithecium pale sordid yellowish, subgranulose; 
thecium 120 to 124 » high, colorless or nearly so; paraphyses slender, adglutinated, 
gelatinous; hypothecium slightly darker than the epithecium, darkening to yellowish 
brown; asci subventricose, shorter than the thecium, ill-defined; spores 4 or 5 in the 
asci, ovoid, 4 to 5-locular and submuriform, 32 to 40 »# long, 14 to 20 » thick; no 
reaction of the thecial structures with KHO or Ca(ClO).; hymenial gelatine with 
iodine a pale vinous red, with NO; no change except a darkening of epithecium and 
hypothecium. 
On earth; foothills of Santa Monica Range and Verdugo Mountains near Los Angeles. 
Europe on the Island of Corsica. 
7. Rhizocarpon bolanderi (Tuck.) Herre, Proc. Washington Acad. Sci. 12: 106, 
1910. 
Buellia bolanderit Tuck. Gen. Lich. 189. 1872. 
Crust dark chestnut, of small, round or wavy squamules, separate or approximate, 
upon a conspicuous black hypothallus, giving the crust an almost black appearance. 
KHO—, Ca(ClO),—, medullary hyphe with iodine—; apothecia adnate, 0.3 to 1 mm. 
wide; disk dull black, flat to convex, with a concolorous, erect, horny margin, this 
at last disappearing; epithecium dark brown; thecium pallid, 100 » high; paraphyses 
loosely coherent; hypothecium dark brown; asci saccate, 68 » to nearly as high as the 
thecium, 24 » thick; spores 2 in the asci, from colorless to gray and intensely brown 
black, 32 to 72 4 long, 20 to 36 » thick, muriform; hymenial gelatine of an intense 
blue with iodine. 
A montane lichen, rare below 300 meters elevation. Santa Cruz Mountains, Herre, 
at 1,260 meters; throughout the San Gabriel and San Bernardino Ranges; on Santa 
Catalina Island. 
CLADONIACEAE. 
Of the several genera classed in this family, the only one reported from our district 
is the following: 
CLADONIA Hiller. 
Thallus squamaceous to foliaceous, of two parts conveniently designated as hori- 
zontal or primary and erect or secondary, the latter of greatly varying size and shape, 
constituting the ‘‘podetia;” apothecia sessile upon the apices of the podetia or rims 
of the cups, rarely sessile directly upon the squamous or foliaceous primary thallus, 
biatorine, with a proper, but without a thalline margin; paraphyses simple, coherent; 
hypothecium pallid or colored; asci clavate, 6 to 8-spored; spores colorless, simple, 
ovoid, oblong to fusiform, rarely bilocular or trilocular; spermogones situated at the 
tips of the podetia or on the corresponding rims of the cups, exceptionally on the 
primary thallus; spermatia cylindric or acicular, nearly straight. 
The species concerning us come under the subseries Ochrophaeae Wainio, of the 
subgenus Cenomyce (Ach.) T. Fries, briefly characterized by pallid or light brown 
apothecia, the podetia not cup-bearing or with cups at their tips; spores simple. 
In ours the apothecia are brown. 
