6l4 HISTORY OF PASADENA. 



UMBILICARIA Hoffm. 



U. PHAEA Tuck. On rocks. 



PHYCIA (DC.,' Fr.) Th. Fr. 



P. HiSPiDA (Schreb, Fr.) Tuck. Ou trees. 



P. OBSCURA (Ehrh.) Nyl. On trees. 



P. STELLARis (Linn.) Tuck. On trees and rocks. 

 PARMELIA (Ach.) De Not. 



P. CAPER.A.TA (Linn.) Ach On trees and rocks. 



P. CONSPERSA (Ehrh.) Ach. On rocks, 



P. OLiVACEA (Linn.) Ach. On trees on Mount Lowe. 



P. perlaTa (Linn.) Ach. 



P. PHYSODES (Linn.) Ach. var. enteromorpha Tuck. On trees above 4000 feet. 



P. TiLiACEA Hoffm. Floerk. On trees. 

 THELOSCHISTES Norm. Emend. 



T. chrysophthalmus (Lynn.) Norm. var. A. Com. On shrubs and trees. 



T. lychneus (Nyl.) Tuck. On trees. 

 USNEA (DiU.) Ach. 



U. BARBATA (Lynn.) Fr. var. articul.^Ta Ach. On trees in S. G. Mts. 

 EVERNIA Ach., Mann. 



E. vur.PiNA (Linn.) Ach. On coniferous trees above 3,500 feet. 

 CETRARIA (Ach.) Fr. Muell. 



C. californica Tuck. On trees. 

 RAMALINA Ach., De Not. 



R. CALCARis (Linn.) Fr. var. fraxinea Fr. On trees. 



R. LAEVIGATA Fr. On trees. 



R. MENZiESii Tuck. On trees. 



R. reticulata (Noehd) Krem. On telephone poles. 

 RHYTISMA Fries. 



R. PUNCTATUM Pers. On leaves of Acer niacrophyllwm. July — October. 

 TAPHRINA Tul. 



T. DEFORMANS (Berk.) Tul. (Peach Curl.) On peach leaves. April — June. 

 CRYPTODISCUS Corda. 



C. ATROViRENS (Fr.) Corda. On dried shrub in S. G. Mts. August. 

 LACHNELLA Fries. Cup-fungus. 



L. CONFUSA (Linn.) Fr. On decaying wood. January — April. 

 LACHNEA Fries. Cup-fungus. 



L. scuTELLATA (Linn.) Fr. Com. On moist soil and decaying wood. 

 PSEUDOPEZIZA Fckel. 



P. MEDiCAGiNis Sacc. On leaves of alfalfa. 



P. TRiFOLii (Bernh.) Fckl. On leaves of white clover. 

 PEZIZA Dill. Cup-fungus. 



P. CHRYSOCOMA (Bull.) C. & E. On decaying wood. February — April. 



P. SUBREPANDA C. & P. Moist soil at Oak Knoll. January — April. 



P. viOLACEA (Gill.) Pers. Moist soil in Arroyo Seco. February — April 



P. VESCICULOSA Bull. Frequent in moist soil. December — April. 

 HELVELLA Fries. 



H. CALIFORNICA Phil. Common under trees at Oak Knoll. January — April. 



H. CRISPA Fr. Under trees at Oak Knoll. April. 



H. LACUNOSA Afz. Frequent in shaded soil at Oak Knoll and A. S. Feb. — April. 

 MORCHELLA Dill. Morel. 



M. CONXCA Pers. Occasional in shaded soil. February — May. 



Order Uredmea\ Rusts. 



UROMYCES Link. 



U. BET^ Kuehn. II. On cultivated beets. 



U. CARYOPHYLLiNus (Schrk.) Schrt. On garden pink [Dianthus.) 



U. CHORiZANTHis Ell. & Hark. III. On C. staticoides. June — August. 



U. ERiOGONi (?) Ell. & Hark. II. On E. elongatum and E. saxatile. May — Oct. 



U. EUPHORBi.-E C. & P. II, III. On E. serpyllifolia. June — September. 



