lOG Universifij of CaUfornm PubUcatimis in Botany [Vol. 7 



3. Aecidium Triglochinis Diet, and ITolw. 



Erythca, vol. 7, j.. i>S, 1899. 



Oil Triglochin conciinid Davy, Lassen County, type collection 

 (Davy). 



4. Aecidium Valerianellae (Biv.) Bernh. 



Stirp. Ear. Sci., vol. 4, p. 28. 

 On Vahrianflla coiigesta Lindr., ]\Iill Valley and Applegate. 



BAEODROMUS arth. 

 Ann. Mycologici, vol. 3, p. 19, 1905. 



Cycle of development includes pj^cnia and telia only. Telia sub- 

 epidermal but erumpent ; teliospores one-celled, ellipsoid, produced in 

 chains but compacted into masses. 



5. Baeodromus californicus Arthur. Ill 

 Ann. Mj'cologici, vol. 3, p. 19, 1905. 



On Senecio Doiiglasii DC, Lytle Creek, San Bernardino Mountains 

 (Parish). 



BUBAKIA ARTH. 

 Result. Sci. Cong. Bot. Yienne, p. 338, 1906. 



Uredinia erumpent and pulverulent; urediniospores borne singly 

 on pedicels. Telia subepidermal and indehiscent ; teliospores one- 

 celled, compacted into dense masses. 



6. Bubakia Crotonis (Cke.) De Toni. II, III 

 Grevillea, vol. 6, p. 137, 1878. 



On Croton californicus Miill. Arg., San Francisco, Long Beach 

 (Bethel). 



CALYPTOSPORA kuhn 

 Hedwigia, vol. 8, p. 81, 1869. 



Aecia erumpent, cj'lindrical with thin-walled peridium. Telia 

 forming compact layers, indehiscent. Teliospores ellipsoid, usually 

 four-celled. 



7. Calyptospora columnaris (Alb. and Schw.) Kiihn. 0, I, III 

 The aecial stage has been shown hy Winter (Hedwigia, vol. 26, 



p. 28, 1887) to develop on a large number of species of Ahics, includ- 

 ing A. magnifica Murray and A. concolor Lindl. Arthur (Mj'cologia, 



