LICHENS OF THE VICINITY OF LOS ANGELES. 107 



L. Cenisia, Ach. On earth. Apparently infrequent. 

 L. Hageni, Ach. On rocks. 

 L. atra (Huds.) Ach. On rocks. 

 L. hadia (Pars.) Ach. On rocks. 



L. athroocarpa (Dub.) Nyl. On various barks. Frequent. 

 L. suhfiisca (L.) Ach. On barks. Frequent. 

 L. cinerea (L.) Sommerf. var. gibhosa, Nyl. On rocks. 

 Apparently infrequent. 



L. xanthophana, Nyl. On rocks. 

 L. privigna (Ach.) Nyl. On rocks. 



L. redimita, Stiz., n. sp. Thallus tartareous, light to 

 dark ashcolored; apothecia ^ to 1 line in diameter, numerous, 

 elevated, when young covered by the scurfy thallus, which 

 finally remains as a pruinose covering on the blackening, 

 convex disk. Thalline margin crenate, eventually disappear- 

 ing. Spores "tio/^, somewhat curved, 4-5 septate. CI — . 14- dark 

 blue, changing to brown; K — . Akin to L. elaiina, Ach. On 

 Rhus laurina. I have recently found this to be quite fre- 

 quent on UmhellularHa Calif ornica and Alnus rhombifolia 

 in Canon del Gusto, S. M. R. 



Pannaria microphylla (Sw.) Del. On ground. 



Minodina Conradi, Koerb. On rocks and ground. 



H. angelica, Stiz. On rocks. 



R. succedens, Nyl. On various barks. 



R. sophodes (Ach.) Nyl., forma. On decaying caudex of 

 Cotyledon. 



Urceolaria scruposa (L.) Nyl. On earth. 



U. gypsacea, Nyl. On earth. Infrequent. 



Cladonia pyxidata (h.) Fv. On earth. Common. 



C. fimhriaia (L.) Fr. On earth, shaded banks. 



C. fimhriaia (L.) Fr., var. tubceformis, Fr. On shaded 

 earth. 



