i6 PROCEEDINGS OF THE SOUTHERN CALIFORNIA ACADEMY. 



B. thallus citrinus. 



Spores brown or migrescent, 1-3 septate and often muriform' 



66. L. geographica lecanorina Floerk. Granitic rocks in the higher 



mountains. 



67. L. geographica L. (Tuck.) f. contigua auctt. Granite, near San 



Bernardino {S. B. Parish.) No. 2,918. On slate rock, Santa 

 Monica Mts. 



'i Parasytic Species. 



68. L. parmeliarum Sommerf. On Parmelis caxatilis and P. conspersa, 



in the San Gabriel Mts. 



GRAPHIDODEI. 

 TRIBE XVI. CRAPHIDEI. 



GEN. XXVIII. IvECANACTIS Eschw. 



1. L. premnea Tuck. On Lycium californicum and Rhus integrifolis, 



near San Pedro. 



2. L. californica Tuck. On Rhus integrifolia, near San Pedro and 



Catalina Island. 



3. L. abietina Tuck. On bark of Abies, San Gabriel Mts. 



GEN. XIX. OPEGRAPHA Ach. 



1. O. atrorimalis Nyl. On bark, near Santa Monica and Catalina Island. 



2. O, astraea Tuck. On fence boards, near Compton [^A.J. McClatchie.) 



3. O. atra Pers. On Umbellularia californica, near Santa Monica. 



4. O. prosiliens Strt. Same habitat as the last preceding. 



5. O. rimalis Ach( On Lycium californicum, near San Pedro. 



GEN. XXX. ARTHONIA Ach. 



Apothecia brown or lighter color — not black; spores i septate. 



1. A. ochrolutea Nyl. On dead twigs, near San Pedro. 



2. A. impplita chiodectonoides Tuck, On Alnus, near Santa Monica. 



3. A. pru^osella Nyl. u. sp. (in litt ) On bark of Cordia — a native of 



Brazil, in cultivation at agricultural experiment station at Santa 

 Monica. 



Spores I, septate; apothecia black. 



4. A patellulata Nyl. Near Santa Monica, on a cultivated acacia; on 



Fraxinus oregana, near San Bernardino {S. B. Parish.) No. 3,559. 



5. A. dispersa Nyl. On oak, near Santa Monica; Catalina Island. 



6. A. dispersa cytisii Mass. Oaks, Catalina Island. 



7. A. subdispuncta Nvl. on stalk of Leptosyne gigantea, near Santa 



Monica. Bull. Torr. Bot. Club, Vol. 24, No. 9. 



8. A. lurida Ach. On Tilia americana, (cultivated) Soldiers' Homes. 



9. A. galactites depnncta I'yl. On dead stalk of Ricinus communis, 



Soldiers' Home. 



Spores 3-5 septate. 



