-83- 



Calicium hyperellum Ach. Meth. Lich. 93. 1803. Tuck. Genera Lich. 241. 



1872. Macoun, Cat. Can. Plants, Part VII. 172. 1902. 



Thallus effuse, lemon or greenish yellow, granulose to scurfy, thin and 

 scattering or continuous; in our specimens spreading extensively, but usually 

 forming small, interrupted patches. Apothecia numerous, stipes firm, black, 

 stout, rather short, .5 to 1.3 mm. in height, the head lens-shaped or more or 

 less globose, black, or sometimes slightly reddish or brownish black, .3 to .5. 

 mm. in diameter; hypothecium dusky; paraphyses short, simple, slender; asci 

 24 to 27yu long, 4 to 6/x wide, cyHndrical or slightly bellied; spores small and 

 colorless or nearly so within the asci, when mature blackish, 2-celled, strongly 

 constricted in the middle, ellipsoid or ellipsoid-pointed, 4.5 to 5.5^1 broad and 9.5. 

 to I3.6ai long. 



Here described from specimens in the University of California herbarium, 

 marked "State Survey." They were probably collected in the Yosemite in 

 1867, on the bark of Abies. This plant is common and widely distributed in 

 Europe, but is rare and almost confined to the Pacific slope in America, though 

 recorded from Newfoundland by Macoun. As it is recorded by Tuckerman 

 from the Yosemite and the Big Trees, and by Dr. Hasse in a manuscript list of 

 the lichens of southern California, as well as by Macoun from Vancouver Island. 

 It beyond doubt occurs in the higher mountains of the Pacific slope, from the 

 Mexican boundary to British Columbia. 



Arnhonia polygramma Nyl. Prodr. Fl. N. Gran. 66. 1863. 



Thallus small, i to 3 cm. in diameter, determinate, uniform, smooth, rather 

 thin but inclined to be thick in places, creamy gray to whitish, becoming brown 

 or yellow with KOH. Apothecia numerous, very irregular in shape, branching 

 or stellate, innate or closely appressed; disk fiat, linear, becoming protuberant 

 when moistened, clear red-brown to brown and often slightly gray pruinose; 

 epithecium broad, granulose, dark brown; asci short, broadly clavate, 10 to 15/x 

 by 30 to 38^1; thecium colorless or very pale yellowish, turning blue with I; spores 

 colorless, 4-celled, ovoid or pointed ellipsoid, one end smaller than the other, 



4.4 to 5.8^t broad and 13 to 14.6/x long. 



On oaks in Alum Rock park. Inner Coast Range; altitude 150 meters. 

 Described by Nylander from the United States of Colombia. Differs from 

 A. radiata, with which it may be confused, in the color of the apothecia and the 

 chemical reactions, as well as by the different appearance of the thallus. 

 Opegrapha abnormis Ach. Syn. Lich. 74. 18 14. 



Thallus forming a thin white or whitish, circular to irregular, small or 

 medium sized film on the bark of living trees, no chemical reactions. Apothecia 

 small and variously shaped, circular, irregularly angulose, and obsoletely stel- 

 late; thecium blue with I, the spores yellow; asci broadly top shaped to almost 

 spherical, 21.8 to 24.6/^ broad and 27 to 32.8/x long; spores muriform, oblong to 

 pointed ellipsoid, 4, 6, and more commonly 8 in the asci, colorless, with a narrow 

 halo, transverse rows of cells 7 to 9 in number, the longitudinal of 2 to 4 rows, 



7.5 to lOfx broad and 14.5 to 20n long; according to Dr. Hasse the spores are 10 

 to 12 ij. broad and 20 to 26^1 long. 



