112 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
2. Blastenia festiva (Fries). 
Parmelia ferruginea festiva Fries, Lich. Eur. Ref. 172. 1851. 
Thallus as described ‘‘thin, grayish or dark . . . often evanescent,’’ with us absent; 
apothecia sessile, somewhat larger than in B. ferruginea, 0.5 to 1 mm, wide; disk flat 
soon slightly convex, bright orange and darkening to rusty red; proper margin persist- 
ent, entire or crenulate; epithecium subcontinuous, yellow, narrow, its lower border 
well defined, after KHO purple; thecium 100 to 104 » high, colorless, with iodine deep 
blue; hypothecium sordid yellowish; asci clavate or oblong-ellipsoid; spores oblong- 
ellipsoid, blunt-ended, 16 to 20 « long, 5 to7 ys thick, polari-bilocular, the loculi often 
approaching, or also found bilocular, the septum after KHO widening and the spore 
then becoming polari-locular with approximate loculi. 
Quite frequent on various rocks at lower elevations, though ascending to 1,300 
meters. 
3. Blastenia luteominia (Tuck.). 
Placodium luteominium Tuck. Syn. N. Amer. Lich, 1: 181, 1882. 
Thallus granular, effuse and ill defined, KHO—, Ca(ClO),—; apothecia sessile, 
grouped, 0.25 to 1 mm. wide; disk flat, orange to vermilion, the proper margin promi- 
nent, entire or very faintly striate, with KHO both disk and margin dark crimson; 
epithecium granulose, yellow to orange yellow; thecium 80 high; paraphyses free, the 
tips clavate and colored, septate; hypothecium colorless; spores oblong, some slightly 
curved, with 3 or 4 globules disappearing with KHO, the spores then polari-bilocular, 
the loculi approximate, without isthmus, 12 to 23 » long, 3 to 5 y thick. 
On sandy clay, Point Loma near San Diego. . 
4. Blastenia subpyraceella (Nyl.). 
Lecanora subpyraceella Nyl.; Hasse, Bull. Torrey Club 24: 446. 1897. 
Thallus clay color, quite thin, obscure or absent; apothecia sessile, small, 0.25 to 
0.75 mm. wide; disk pale yellow orange to rusty yellow, flat to planoconvex; proper 
margin yellow or pale orange, brighter than the disk, thin, persistent, quite entire; 
thecium 72 to 80 « high; paraphyses not well separated, with globular heads, some 
furcate below the tips; asci oblong-tubular; hymenial gelatine dark blue with iodine; 
spores 8, oblong-ellipsoid, 12 to 20 long, 6 to 8 # thick, polari-bilocular, the cells 
approximate and connected by a short isthmus. 
On earth. Type locality, foothills of the Santa Monica Range near the Soldiers’ 
Home; occurs also on crumbling sandstone. 
Type deposited with Dr. W. Nylander in 1897; duplicates with Prof. Bruce Fink and 
Dr. A. Zahlbruckner, in the herbarium of the New York Botanical Garden, and in 
herb. Hasse. 
CALOPLACA T. Fries. 
Thallus crustaceous, uniform or lobed at the periphery, or dwarfed-fruticulose, 
mostly yellow; apothecia circular, appressed or sessile, lecanorine; asci 8-spored; 
spores colorless, ellipsoid, ovoid or, by bulging of the interlocular space, rather rhom- 
boidal, normally bilocular, exceptionally simple or trilocular, the loculi connected 
by a tube or isthmus; sterigma endobasidial, jointed; spermatia short, straight. 
KEY TO SPECIES, 
Thallus fruticulose, dwarfish..............................22-. 13. C. coralloides. 
Thallus not fruticulose. 
Thallus crustaceous. 
Effuse. 
Yellow...........000..0.02000 0000002 e eee eee 5. C. citrina. 
Not yellow. 
White, thin.............2. 2.222222 eee eee ee eee 4. -C. gilva. 
White to grayish and obsolete................ 14. C. pollinii. 
