HASSE—LICHEN FLORA OF SOUTHERN CALIFORNIA. 55 
56 to 60 # high; paraphyses laxly coherent, with brownish clavate tips or colorless 
in the same apothecium; hypothecium sordid yellowish to yellowish brown; spores 
acicular-fusiform, attenuate-caudate at one end, at the other blunt, 25 to 30 # long, 
3 to 4 # thick, faintly pluriseptate; hymenial gelatine blue with iodine, KHO staining 
the epithecium a violet purple; no change with NOs. 
On rocks, north fork of Matilija Canyon, Ventura County. Coast of California. 
5. Toninia aromatica (J. E. Smith) Maas. 
Thallus of rugulose, contorted, greenish gray or sordid pale olive green squamules, 
these congested and subimbricated, with a crenulate-lobulate border; apothecia 
sessile, now and then conglomerate or clustered ; disk black, round with an entire 
margin to convex with the margin obsolete; epithecium subcontinuous, dark brown; 
thecium 40 to 60 » high, colorless to slightly yellowish tinted; paraphyses strict, 
loosely coherent, entire, simple, some clavate and with grayish violet tips; hypo- 
thecium dark yellowish brown, nearly as high as the thecium; asci clavate; spores 
dactyliform-cylindric or narrow fusiform, both ends obtuse, 4-locular, 10 to 26 p» long, 
4to5pthick; hymenial gelatine with iodine blue, changing to reddish brown, KHO 
staining the epithecium violet. 
On sandrock near Mayfield, Herre; Santa Catalina Island; Santa Monica Range; at 
Murietta Hot Springs, Riverside County. Europe; Africa. 
6. Toninia massata (Tuck.) Herre, Proc. Washington Acad. Sci. 12: 103. 1910. 
Lecidea massata Tuck. Lich. Calif. 25. 1866. 
Thallus of loosely aggregate, gray verruce the size of a poppy seed or less, forming a 
rimose crust, KHO+pale yellow, Ca(ClO),—; hypothallus indistinct; apothecia 
numerous, interspersed among the thalline verruce and barely as large as these, 
innate-sessile; disk black, smooth and soon convex and immarginate; epithecium 
granulose, brown; thecium sordid yellow, with iodine blue, soon changing to red 
brown; paraphyses adglutinate and indistinct; hypothecium thick, dark brown, as 
thick as or thicker than the thecium; asci subinflated-clavate, 36 m long, 16 p thick; 
spores bilocular, 12 to 15 # long, 4 to5 4 thick; thecium about 40 » high; hymenial 
celatine stained blue with iodine, soon changing to red brown. 
On earth, Santa Monica Mountains; Verdugo Mountains near Los Angeles; at Point 
Loma near San Diego. 
RHIZOCARPON Ramond. 
Thallus crustaceous, uniform; apothecia lecideine, circular, sessile or innate upon 
or between the thalline squamules, with a black carbonaceous margin and a dark 
hypothecium; hymenium gelatinous; paraphyses branching, lax and interwoven; 
asci containing 1 to 8 spores; spores colorless or brown or dark from the first, parallel- 
bilocular to more locular or muriform, with a gelatinous halo; spermatia cylindric to 
acicular, straight or nearly so. 
KEY TO SPECIES. 
Growing on earth; spores not colored......---.---+++++++++2+-- 6. R. athalloides. 
Growing on rock. 
Spores not colored........-----e-eer eee e sete terre cece cece 5. R. distinctum. 
Spores dark. 
Thallus some shade of yellow. 
Bright yellow, areolate.........-----------++++++- 1. R. geographicum. 
Dull greenish yellow, consisting of small verruce.. 2. R, viridiatrum. 
Thallus not yellow. 
Phallus brown......ceceeeeeeecececeeeeee-e-eeeee 7. R, bolanderi. 
Not brown. 
Gray, spores 2...........-.-----2------ +5000 3. R. geminatum. 
Whitish, spores 4 to 8.........-----e-eeeeee eee 4. R. petraeum. 
