■ 3 — 
Biatorella terrena, n. sp, 
Thallus crustaceous, of small, flat, contiguous and imbricate squamules, 
the largest lobalated, not exceeding i mm. in width, mostly smaller, round 
and entire, of a sombre olive-green color: hypothallus indistinct. Apothecia 
sessile, 0.5 to i mm. in diameter, disk persistently flat, brown-black, thalline 
margin entire, slightly elevated. Epithecium continuous, red-brown, 
gradually paling downward; thecium 76/,^ to 96/^ high, colorless or here and 
there with tinges of brown extending downward from the epithecium ; 
paraphyses slender, compact coherent, not septate, a few forked below the 
tips: hypothecium sordid pallid-brownish, subtended by a thin gonidial 
layer; asci saccate or subventricose, the membrane thickened above; spores 
numerous, minute, oblong, 3// to 3.5// long, \f.i thick. Hym. Gel. with lod. 
handsome blue, the epithecium not changing color. 
On earth between stones, and at base of rocks. Type locality at 
“ Squirrel Inn,” North Fork of the San Gabriel Canon, Los Angeles County, 
at 1300 m. alt., July, 1901. Type deposited in herb. Hasse. 
The following species, not collected in the state, may yet be found in its 
south-eastern part : 
Acarospora peltata n. sp. 
Thallus of scattered or contiguous squamules, dirty cream color to 
whitish, broadly peltately aflixed, 1.5 to 3.5 mm. wide, undulate and lobate 
in outline, the smaller entire, the upper surface pulverulent, KHO — 
Ca (Cl. O) 2 — , radiately or irregularly fissured. Apothecia solitary, rarer 
several in a squamule, immersed-urceolate, small, at last superficial and 
enlarging to 0.6 mm. in diameter, disk brown-black, naked or pruinose, the 
thalline margin thin, fissured, when moistened becoming turgid and elevated 
above the thalline surface ; upper and free lower surface of thallus pseudo- 
membraneous corticate, composed of small cells. Epithecium subcontinuous, 
grayish-yellowish or light yellowish-brown ; thecium colorless, 140/^ to i8o// 
high; paraphyses coherent and adglutinated ;at the tips, not thickened nor 
colored; hypothecium pallid; asci subventricose and saccate, 128// to 140// 
long, 28/^ to 30yW thick, the upper part of membrane thickened. The numerous, 
oblong and oblong-ellipsoid, colorless, simple spores, 6// to lo// long, 2.5yU to 3/4 
thick. Hym. Gel. with lod. blue soon turning sordid greenish-brownish, 
the hypotheeium retaining the blue stain longer than the other structures. 
On sandstone. The type locality near Adamana, Arizona. June, 1904. 
Type in herb. Hasse. 
Caloplaca verrucosa n. sp. 
Thallus graphite colored ; .forming small patches of loosely aggregated, 
uniform verrucae, the surface delicately rimose, no reaction with, KHO or 
with Ca (Cl. O) 2. ; hypothallus black, indistinct. Apothecia sessile, disk 
blackish, flat with a subturgid thalline margin; epithecium subcontinuous, 
blue-gray; thecium 64// to 68/,^ high, colorless; paraphyses medium stout, 
thickened and septate above, with a globular faintly colored head ; hypothe- 
cium pale resting upon a gonidial layer; asci oblong, 8-spored ; spores simple 
