THE LICHEN FLORA OF THE SANTA CRUZ PENINSULA 217 



3. RAMALINA COMBEOIDES Nyl. 



Ramalina combeoides Nyl. Bull. Soc. Linn. Norm. 2:4, p. 107. 



1870. 



Ramalina combeoides Tuck. Syn. N. Am. Lich. I: 21. 1882. 

 Ramalina combeoides Herre, Proc. Wash. Acad. Sci. 7: 332. 1906. 

 Ramalina ceruchis Cummings and Seymour, Decades of N. Am. 



Lich. no. 91, San Mateo County, Calif. 



Thallus tufted, short, stout, terete, more or less pitted or wrinkled; 

 color a pale glaucous green; no part of the thallus black. 



Apothecia abundant, terminal or clustered, concolorous or slightly 

 yellowish; spores bilocular to quadrilocular, curved or straight, 



12 14.6 



On maritime rocks. 



This species is placed with Ramalina ceruchis by Tuckerman, but 

 there seems to be no difficulty in separating the two in the field. 

 They differ constantly in color, appearance of thallus, size, and in 

 the apothecia. The short, cylindrical thallus capped by the disk- 

 shaped apothecia, together with the sage-green color and the absence 

 of black, distinguish it from all related forms. 



Very abundant about Point San Pedro, and in Pilarcitos Creek 

 Canon, two miles from the ocean. In the Tuckerman Herbarium 

 are specimens from Mission Dolores (San Francisco), and Tomales 

 Bay in Marin County, collected by H. N. Bolander. It has also 

 been recorded from San Diego by one or two collectors. Not known 

 outside of California. 



4. RAMALINA HOMALEA Ach. 



Ramalina homalea Acharius, Lich. Univ. 598. 1810. 

 Ramalina homalea Tuck. Syn. N. Am. Lich. I: 21. 1882. 

 Ramalina homalea Cummings and Seymour, Decades of N. Am. 



Lich. no. 92, San Mateo County, Calif. 

 Ramalina homalea Herre, Proc. Wash. Acad. Sci. 7: 332. 1906. 



Thallus tufted, compressed, two-edged, smooth or becoming 

 wrinkled; lobes spreading, simple or irregularly branched; color yel- 

 lowish green in herbarium specimens, the living plant a gray-green; 

 holdfast and basal portion of plant filled with red or orange coloring 

 matter. 



