- DIVISION EIGHT — SCIENCE. 615 



U. JUNCi (Desm.) Tul. II, III. On J. balticus,J. robustus, and J. xiphioides. Feb- 

 ruary — October. 



U. 1.UPINI B. & C. I, II & III. On L. albifrons, L. formosus bridgesii, and 

 L. cytisoides. March — July. 



U. POLYGONi (Pers.) Fckl. II. On P.aviculare. June — August. 



U. TEREBiNTHi (DC.) Wint. II & III. On Rhus diversiloba. August. 



U. TRiFOLii (A. & S.) Wint. I & III. On T. gracilentum, T. inacrei, T. niicro- 

 cephaluni, T. ciliolatutn and T. roscidum. April — June. 



U. ZYGADENUS (?) Pk. II. On Z. fremotiH. March — April. 

 PUCCINIA Pers. 



P. ACHYRODis Diet. & IIol. (n. sp. in lit.) III. On A. aureiim. June — August. 



P. AMORPH.^ Curt. III. On A. Californica J.uly — September. 



P. BACCHARiDis Diet. & Hol. Erythea i: 250. II & III. On^. viminea. June- 

 November. 



P. CARicis (Schum.) Rab. II & III. C. barbarce and C.filiforniis latifolia. 



P. CLARKi^ Pk. I & III. On Zaiischneria californica ; III. On (Enoth^ra bis- 

 torta and Godetia bottcs. May — July. 



P. CONVOLVULI (Pers.) Cast. II & III. On C . occidentalis. June — August. 



P. CORONATA Corda. II & III. On Holcus lanatus. May — September. 



P. DiGiTATA Ell. & Hark. III. On Rhaimius crocea. 



P. EULOBi Diet. & Hol. Erythea 1:249. I & III. On E. cali/ornicus. April — Aug. 



P. FLOSCULOSORUM (A. & S. ) Roehl. III. On Carduiis californicus and C. occiden- 

 talis. February — July. 



P. GAtii [Pers.] Schw. II & III. On G. californicutn, G. cinereum, and G. 

 nuttallii^ May — September. 



P. Giti^ Hark. III. On G. attractyloides. June — August. 



P. GRAMiNELLA (Speg. ) Diet. &. Hol. III. On Stipa eminens. March — June, 



P. GRAMiNis Pers. II & III. On A. fatua, A. saliva. Elynius condensatus, E. 

 triticoides, and cultivated barley. 



P. HARKNESSii Vize. III. On Ptiloria dehor iacece,^nn& — August. 



P. HELiANTHii Schw, II & III. On H. annuus. 



P. HiERACii (Schum.) Mart. III. On Malacothrix tenuifolia. July. 



P. INVESTITA Schw. I & III. On Gnaphaliutn ealifornicurn. July. 



P. jONESii Pk. III. On Velcsa argnta. April — ^July. 



P. MALVACEARUM Mont. III. On M. parvijiora and hollyhock. 



P. NODOSA EU. & Hark. III. On Brodicsa capilata. April. 



P. MCCLATCHiANA Diet. & Hol. Erythea ii : 127. III. On Scirpus sylvaticus 

 microcarpiis. 



P. MELLIFERA Diet. & Hol. Erythea 1:251. I & III. On Salvia mellif era. May 

 -July. 



P. MENTHA Pers. II & III. On M. ca7iadensis. June — September. 



P. PALEFACIENS Diet. & Hol. Erythea II : 128, III. On arabais holba'llii. Feb- 

 ruary — April. 



P. piMPiNEivt^ (Straus. )I/ k. III. On Osmorrhaza brachyopoda. April — May. 



P. POLYGONi-AMPHiBii Pers. II. On P. acre. 



P. PROCERA Diet. & Hol. Erythea 1:249. ^ & HI- ^^ Elymus condensatus, 

 E. triticocoides, and E. americajius . 



P. PRUNi-SPiNOS^ Pers. II & III. On leaves of cultivated plums, peaches and 

 apricots. July — October. 



P. PULVERULENTA Grev. III. On Ephilobiuvi paniculatum. September. 



P. RECONDITA Diet. &. Hol. Erythea 11: 128. III. On Artemisia vulgaris cali- 

 fornica. September — April. 



P. RUBiGO-VERA (DC.) Wint. II & III. On wheat Bromtcs hookerianus and Hor- 

 dentn murinuni. March — November. 



P. TANACETi DC. II & III. On. Artemisia vulgaris californica. July — November. 



P. XANTHii Schw. III. On A', strumariuni. August — October. 

 PHRAGMIDIUM Link. * 



P. SUBCORTiciUM (Schr.) wint. On leaves and stems of Rosa californica and culti- 

 vated roses. 



P RUBi-iDAEi ( ? ) (Pers.) Wint. II. On leaves, stems, and fruit of cultivated 

 blackberries. July — October. 

 JECIDIUM Pers. Cluster Cups. 



2^. ctEMATiDis DC. On C. ligtistici folia. March — July. 



2^. EUPHORBIA Gmel. On E. albomarginata and E. serpyllijolia. July — September. 



