6i2 HISTORY OF PASADENA. 



Order. Siphonicc. 

 VAUCHERIA DC. Green-Felt. 



V. HEMATA (Vauch.) Lyng. Common in running and stagnant water. 



V. SESSILIS (Vauch.) DC. In pond in W. C. 



V. TERRESTRi.s Lyng. Frequent on moist soil. 

 SAPROLEGNIA Nees. Water-mould. 



S. FERAX (Gruith.) Nees. On flies in aquarium in laboratory. 



BOTRYDIUM Wallr. 



B. granulaTUM (L.) Grev. Common on moist soil. January — May. 



ALBUGO S. F. Gray. White rust. 



A. CANDIDA (Pers.) OK. On Shepherd's Purse. February — May. 



Order — Confervoidetz . Water-flannel, etc. 



CLADOPHORA Kuetz. Water-flannel. 



C. FRACTA (Dill) Kuetz. var. rigidula Kuetz. Frequent in stagnant and running 

 water. 



C. OLiGOCLONA Kuetz. Common in stagnant and running water. 



ULOTHRIX Kuetz. 



U. zonaTa (W. & M.) Ag. In watering-trough. 



CONFERVA Link. 



C. FtoccoSA Ag. Common in stagnant and running water. 



C. FUGACi.ssiMA Roth. Frequent in stagnant and running water. 

 STIGEOCLONIUM Kuetz. 



S. FASTIGIATUM Kuetz. Commou in stagnant and running water. 

 CYLINDROCAPSA Rein. 



C. GEMINELLA Wolle. On shaded soil in Pasadena. February — April. 

 DRAPERNALDIA Agardh. 



D. GLOMERATA 'Vauch. ) Ag. Frequent iu stream in Arroyo Seco. March — May. 

 CEDOGONIUM Link. 



CE- AUTUMNALE Witt. Stagnant water at Oak Knoll. 



CARPOPHYTA. 



GLASS II. ASCOMYGETES. Sac-Fungi. 



Order PerisporiacecB . Simple Sac-F%uigi. 

 SPH^ROTHECA Lev. 



S. PANNOSA (Wallr.) Lev. On leaves of cultivated roses. December — June. 

 ERYSIPHE Hedw. 



E. COMMUNIS (Wallr.) Fr. On cultivated peas. 

 CAPNODIUM Mont. 



C. C-^SPITOSUM E. & E. Proc. Phil. Ac. Nat. Sc. 1894 p. 325. On loquat leaves. 

 C. ciTRi B. & D. On orange and lemon leaves. 

 EUROTIUM Link. 



E. HERBARiORUM (Wigg.) Lk. On various decaying substances. 



Order Pyrenomycetecc. Black Fungi. 



ROSELLINIA Ces. & De Not. 



R. AQUiLA (Fr.) DeNot. On oak bark and grape stems. 

 CUCURBITARIA Gray. 



C. STENOCARPA E. & E. (n. sp. in lit.) On dead stems of Rhus diversiloba. June — 

 September. 



SPH^RELLA Ces. & De Not. 



S. ARBUTicOLA Pk. On leaves of Umbellularia californica. 



S. siDvEcoLA E. & E. Erythea 1:198. On leaves of Sidalcea delphinifolia. March — 



