HASSE— lylCFFKNS. 7 



TRIBE V. RAHALINEI Ach. 



GEN. IX. RAMAUNA, Ach. 



1. R. ceruchis De Not. On shrubs near the coast. San Diego (7?. D. 



Alder son.) 



form cephalota Tuck. With the type. San Diego 

 {R, D. Alderson.) 



2. R. combeoides Nyl. Rocks. Catalina Island. San Nicolas Island 



on Leptosyne gigantea {^Blanehe Trask.) San Diego {R. D. 

 Alderson.) 



3. R. homalea Ach. Beach rocks. Catalina Island and near Santa 



Monica. 



4. R. reticulata Krempelh. Common on small trees along the coast. 



Catalina Island {Blanche Trask.) 



5. R. menziesii Tuck. On trees. Common. 



6. R. laevigata Fr. Twigs. Near San Bernardino (5. B. Parish.) 



7. R. intermedia Del. Twigs: Catalina Island. 



8. R. farinacea Nyl. Common. 



TRIBE VI. USNEEl Nyl, 



GBN. X. USNEA Hoflfm. 



1. U. florida HofFm. On bushes in the mountains. Rare. 



2. U. hirta HofFm. On shrubs throughout. Always sterile. The form 



rubiginosa Michx. from Catalina Island {Blanche Trask). San 

 Diego {R. D. Alderson.) 



3. U. dasycarpa Nyl. On shrubs in the mountains; rather rare and 



seldom with apothecia. 



GEN. XI. CHLOREA Nyl. 



I. C. calif ornica Nyl. {Evernia vulpina Ach.) Of luxuriant growth on 

 green and dead wood of conifers in the higher mountains. 



TRIBE VII. CETRARIEI Nyl. 



GEN. XII. CETRARIA Ach. 



I, C. californica Tuck. Shrubs and small trees. Frequent in the 

 mountains. 



GEN. XIII. PLATYSMA, HofFm. 



I. P. saepincola HofFm. {Celraria saepincola Ach.) Frequent on 

 shrubs San Bernardino {S. B. Parish.) 



TRIBE VII. ALECTOREI Nyl,. 



GEN. AIvECTORIA Ach. 

 I, A. fremonti Tuck. Trees. San Diego {R. C. Alderson). 



TRIBE IX. PARflEUEl Nyl. 



GEN. XIV. EVERNIA Ach. 



I. Evernia prunastri Ach. On shrubs. Common. No fruiting plant 

 observed. 



