DIVISION EIGHT — SCIENCE. 613 



STIGMATEA Fries. 



S. GERANNii Fr. On leaves of G. caroliniayiiim. February — Apri,l. 



GNOMONIA Ces. & De Not. 



G. AI.NI Plowr. On leaves of A. rhotnhi/olia. June — October. 



OPHIOBOLUS Riess. 



O. FULGIDUS ,C. & P.) Sacc. On dead stems in Arroyo Seco. July. 

 CLYPEOSPH.^RIA Fckl. 



C. HENDERSONIA (Ell.) Sacc. Ou dead stems. 

 PHYLLACHORA Nitch 



P. GRAMiNis (Pers.) Fckl. Ou Muhlenbergia mexicana. August — October. 



NUMMULARIA Tul. 



N. RUMPENS Cke. On oak bark and on sycamore wood. January — April. 



HYPOXYLON Bull. 



H. CALIFORNICUM E. & E. (u. sp. in lit.) On dead stems oi Adenostomafasciculatuni. 

 June — September. 



H. occiDENTALE Ell. & Ev. Proc. Phil. Ac. Nat. Sc. 1894, p. 345. On dead limbs 

 and trunks. L. R. C. and S. G. Alts. 

 GLONIUM Muhl. 



G. LiNEARE (Fr.) Sacc. On old decorticated trunks of Acer niacrophyllum . 

 HYSTEROGRAPHIUM Corda. 



H. PROMINENS (P. & H ) B. & G. On dead limbs. 

 ENDOCARPON (Hedw.) Fr. 



E. MiNiATUM Ach. On rocks. 



Order Disconiycetea. Lichens. Cup-fungi. 



BUELLIA De Not., Tuck, 



B. oiDALEA Tuck. On dead limbs. 

 CLADONIA Hoffm. 



C. FiMBRiAT.A. (L.) Fr. var. tub.EFORMIS Fr. In soil in San Gabriel mountains. 

 C. FURCATA (Huds.) Fr. var. racemosa F1. Canyon sides. 



C. PYXiDATA (L.) Fr. Canyon sides. 

 URCEOLARIA Tuck. 



U. SCRLPOSA (L. ) Nyl. On soil. 

 PER'rUSARIA DC. 



P. MULTiPUNCTA (Turn.) Nyl. On trees. 

 RINODINA Mass. 



R. sophodes (Ach,) Nyl. On trees. 

 LECANORA Ach. Tuck. 



L. pallescens ( L.) Schaer. On trees. 



L. pallida (Schaer. var. cancriformis Tuck. On trees. 



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



I,. SUBFUSCA (L.) Ach. On trees. 

 PLACODIUM (DC.) Naeg. & Hepp. 



P. AURAXTiACUM ; Lightf . ) Naeg. & Hepp. On rocks and trees. 



P. BOLACINUM Truck. On rocks. 



P. CERINUM (Hedw.) Xaeg. & Hepp. var. pyracea Nyl. On trees. 



P. FERRUGiNEUM (Huds.) Hepp. On trees. 



P. MURDRUM (Hoffm.) DC. On rocks. 

 LEPTOGIUM Fr. Nyl. 



L. ALBOCILIATUM Des. On trees and ground in A. S. and S. G. Mts. 



L. PALMATUM (Huds.) Mont. Among moss in San Gabriel mountains. 

 COLLEMA Hoffm. Fr. 



C. NIGRESCENS (Huds. ). Ach. On trees. 

 PANNARIA Delis. 



P. LANUGiNOS.\ (Ach.) Koerb. On rocks and soil in San Gabriel Mts. 

 PELTIGERA (Willd. Hoffm.) Fee. 



P. CANiN.\ (L.) Hoffm. On rocks and soil among moss. 

 STICTA (Schreb.) Fr. 



S. PULMONARIA (ly.) Ach. On rocks and trees. 



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