LICHENS OF SANTA CRUZ PENINSULA 357 



Parmclia sorcdiata, " medulla C + ! " Zahlbruckner. 

 Parmelia styg-ia sorediala Ach. Lich. Univ. 471. 1810. 

 Parmclia sorediala Nyl. Lich. Scand. 102. 1861. 



II. PARMELIA CONSPURCATA (Schaer.) Wainio. 

 Thallus small, orbiculate or irregular; inner lobes somewhat 

 ascendant, their margins often confluently isidiose-sorediate ; 

 marginal lobes flatter, rounded, sub-imbricate, crenate ; color 

 brown, but varying from ashy gray to chocolate. The whole 

 surface sprinkled with conspicuous, white, erumpent soredia, 

 these passing into the dusky isidiose soredia on older portions 

 of the thallus ; beneath brown, varying from buff to black ; 

 thickly set with short, shaggy fibrils. 

 Sterile. 



Very abundant on a huge sandstone boulder at the summit of 

 the range on the Bear Gulch road, at an altitude of 1900 feet. 

 Not found elsewhere as yet. 



Recorded from Minnesota by Bruce Fink, but not otherwise 

 known from North America. 

 Parmelia olivacea leiicocheilea Mass. Sched. Critt. Lich. Exa. 



Ital. no. 166. 1855. 

 Parmelia subargenti/era^yX. Flora, 58 : 359. 1875. 

 Parmelia conspircata Wainio. Medd. Soc. Faun. Fl. Fenn. 

 14: 22. 1888. 



12. PARMELIA CAPERATA (L.) Acharius. 

 Thallus large, orbiculate to indeterminate, with smooth but 

 wrinkled and plicate surface ; marginally much dissected ; lobes 

 long, imbricate, laciniate, their margins often pointed, elevated 

 and roughened, their tips rounded, becoming isidiose centrally 

 or sprinkled with concolorous soredia ; color pale yellowish or 

 greenish ; beneath black with narrow brown margin ; more or 

 less abundantly clothed with short black fibrils. K+ Cl. 

 Not seen in fruit. 



On stones and shrubs. Golden Gate, San Francisco. 

 A similar lichen, which may prove to be the same, occurs 

 sparingly on twigs along the summit of the range. 

 Lichen caferatus L. Sp. PI. i : 1147- i753- 

 Parmelia caperata Ach. Meth. Lich. 216. 1803. 



