50 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 
7. Catillaria franciscana (Tuck.) Herre, Proc. Washington Acad. Sci. 12: 95. 1910. 
Biatora franciscana Tuck. Syn. N. Amer. Lich. 2: 32. 1888. 
Thallus of whitish to gray, scattered or crowded squamules; apothecia small to 
middling size, 0.5 to 0.8 mm. in diameter, the disk from flat to convex, and the at first 
somewhat paler proper margin disappearing, the blackish disk often with a bloom; 
epithecium dark violaceous black; paraphyses separate, gray, capitate; thecium 60 
to 64 « high; hypothecium colorless or sordid; asci cylindric-clavate, 40 « long, 10 to 
12 » thick; spores bilocular, oblong, 12 to 22 » long, 3.5 to 5 » thick; hymenial gela- 
tine with iodine blue, soon changing to claret brown. 
On argillaceous and other rocks in the Santa Monica Range; at Newport; bluffs at 
White Point, near San Pedro. 
BACIDIA De Not. 
Thallus crustaceous, uniform, ecorticate, with Protococcus gonidia; apothecia cir- 
cular, sessile for the greater part; disk flat or convex, the proper margin and hypo- 
thecium pale or dark; paraphyses not branched, loose or coherent, often with capi- 
tate apices; asci 8 to 16-spored; spores colorless, parallel 3-locular to plurilocular, 
fusiform to acicular, both ends alike or one caudate-acuminate, straight, curved, or 
spirally interwoven, with cylindric loculi, the septa thin, often indistinct, without a 
gelatinous halo; spermatia short-cylindric to acicular, straight or curved. 
KEY TO SPECIES. 
Substratum mineral. 
Growing on earth.............2.20 02. e cece ee ee cece ee eee 1. B. gyalectiformis. 
Growing on rock. 
Thallus dark... ......2....02 020.2 eee eee eee 10. B. umbrina. 
Thallus light colored..................22222.222-2--- 11. B. kingmani. 
Substratum vegetable. 
Growing on wood; thallus light colored............... ..... 2. B. milliaria. 
Growing on bark. 
Spores 3 or 4-locular. 
Thallus staining yellow with KHO................ 4. B. jacobi. 
Thallus not staining with KHO.................. 3. B. naegelii. 
Spores more than 4-locular. 
Spores 10 to 17-locular. 
Apothecia brown to dark brown............... 5. B. fuscorubella. 
Apothecia black..............-..20.....02... 7. B. clementis. 
Spores plurilocular, acicular, one end attenuate. 
Apothecia light pink to flesh-colored......... 9. B. albescens. 
Apothecia more or less black. 
Brown black...................-.-....... 8. B. endoleuca. 
Fawn color to black purple.............. 6. B. rubella. 
1. Bacidia gyalectiformis (Zahlbr.). 
Bilimbia gyalectiformis Zahlbr. Beih. Bot. Centralbl. 18: 158. 1902. 
Thallus dingy white, pulverulent, rugulose, effuse, irregularly rimose, KHO—, 
Ca(C10),—; apothecia dispersed, immersed, gyalectiform, surrounded by asubcoarctate 
spurious thalline margin; disk flat, reddish to blackish brown; epithecium con- 
tinuous, pale yellowish brownish; thecium colorless, 100 to 128 p» high; paraphyses 
slender, subcoherent, not thickened at the apices; hypothecium colorless to yel- 
lowish; asci about 104 p» long, 20 « thick; spores 8 in asci, ellipsoid to oblong-ellipsoid, 
straight, 4-locular, 20 to 28 w long, 6 to 7 » thick; hymenial gelatine pale blue with 
iodine. 
