72 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES 



Artliouia RHOIDIS, A. Zalilbr. sp. nov. (1. c.) Catalina Island, 

 Rhus laurina. 

 LECANACTIDEA, A. Zahlbr. sp. nov. (1. c.) Beach 

 blnffs near San Pedro. On Lycinm Californieum. 

 pateUnlata CAESIOCARPA, A. "^ Zahlbr. var. nov. 

 (Bull. Torr. Bot. CI. XXVII, 1900.) On Malvas- 

 trujn Thurberi. SilR. 

 " microspermella, "Willey. (Sj^n. Arthonia H. AVilley, 

 1890.) On Sails lasiolepis, Platanus racemosa 

 and Jugians Californica. SMR. 

 galactitella, Nyl. On Apricot and Oleander, Soldiers 

 Home Grounds. 

 " taediosa, Nyl. (Willey 's Syn. Arth.) On Platanus, 



SMR. 



" gregaria (Weig.) Kbr. (A. cinnabarina, Wallr.) 



Spores 22-24 mmm long, 8-9 mmm thick, oblong, 



3-4 sptate, upper cell largest. Catalina, on 



quercus tomentella. (Trask.) 



" impolita subfusca, Nyl. (Willey, Syn.) On Jugians 



Californica. SMR. 

 " sanguinea, Willey. (Synop. 1. c.) Catalina, on Het- 



eromeles. 

 " pyrenuloicles. Mull. Arg. (Willey 1. c.) On Grevillea 



robusta. Soldiers Home grounds. 

 " gyalectoides, Mull. Arg. (Willey 1. c.) Catalina 

 Island, on Heteromeles. 

 Arthothelium PRUINASCENS, A. Zahlbr. sp. nov. (Bull. Torr. 

 Bot. CI. XXYII, 1900.) On Malvastrum 

 Thurberi, SMR. 

 Endocarpum WILMSOIDES, A. Zahlbr. sp. nov. (Bot. Cen- 

 tralbl. XIII, 1902.) On argillaceous rock. 

 SMR. 

 MONICA, A. Zahlbr. sp. nov. (1. c.) on 

 argillaceous rock, SMR. 

 Verrucaria peloclita, Nyl. (Lichen Flora Gr. Bri., 1879.) 

 Macroscopically is similar to '^ . plumbae, but 

 differs in the smaller spores. On argillaceous 

 rock. SMR. 



