CALIFORNIA OF ACADEMY SCIENCES. 265 



Ascomyces Tosquinetii, West. — On female catkins of 

 Aln us rubra, producing great deformity, Sunol, Sept. 4042. 



Ascomyces deformans, Berk.— A form of this was found 

 last year on JEsculus Californica affecting the young shoots 

 and leaves, which are quickly killed and therefore not much 

 distorted. Sausalito, May. 3177. 



Ascomyces c.frulescens, Mont. — On leaves of Quercus 

 agrifolia, San Francisco, May. 2556, '2661. 



Ascomyces fulgens, C. & H. — This is undoubtedly an 

 error. The specimens show only the galls of some aphidian, 

 which are of a red color. Ascomyces is hardly to be ex- 

 pected on a plant belonging to the Ericaceae. 



Ascomyces pruni, B. & Br. — On fruit of Prunus subcordata, 



Yo Semite, June. 4012. 



Collected by J. M. Hutchings, who reports the fact that 

 on account of its prevalence this fruit (our wild plum) is 

 hardly ever found fit for eating. 



Ascomyces aureus, (Fr.)— On leaves of Populus dilatata, 

 and P. Fremontii, Oakland, May. 3734. 



Ascomyces Quercus, Cke. — On leaves of Quercus Douglasii, 

 Folsom, and Castanopsis chrysophylla, Sierra Nevada, May — 

 August. 3203, 3294. 



Phacidiltm coronatum, Fr. — On Berberis pinnata and 

 Quercus agrifolia, San Francisco, Healdsburg, Alta, April. 



1268, 1331, 1555. 



P. quadratum, Schm. — On leaves of Arbutus Meinlesu, 

 Tamalpais, April. 1317. 



Hysterium pulicare, Pers. — On Quercus agrofolia, April. 



1420. 



H. vulvatum, Schw. — On twigs of Arctostaphylos pungens, 



Tamalpais, April. 1248. 



Lophodermium caricinum, Rob. — On Carex, San Francisco, 

 April. 



