360 



Schw.) having- successfully infected Pnimis serotina with aeciospores 

 from that host. These results were confirmed in 1906 (Jour. Myc. 

 13:199. 1907); a successful infection resulting in uredinia having been 

 obtained on P. serotina and P. ^mviila following inoculation with aecia 

 on Hepatica. Failure to obtain infection on P. americana, P. cerasus 

 and Amygdahis Persica, however, indicates that in America at least 

 there are distinct races. 



It is probable that the uredinial spores are able to carry this species 

 over the winter in some localities. 



The aecial stage is pei'ennial and the affected leaves are character- 

 istically modified. On Hepatica the leaves stand upright and are much 

 reduced in size and greatly thickened. 



99. Uromyces appendiculatus (Pers.) Fries, Summa Veg. Scand. 514. 



1849. 

 Uredo appendiculata Pers. Ann. Bot. Usteri 15:16. 1795. 

 Uromyces Phaseoli Wint, in Rab. Krypt. Fl. 1^:157. 1881. 

 Nigredo appendiculata Arth. Result. Sci. Congr. Bot. Vienna 343. 

 1906. 



On Fabaceae: 



Phaseolus vulgaris L., Lewes, Aug. 14, 1907, (1684) ; Newark, 



September 1905, (1632); Selbyville, Oct. 4, 1907, (1981). 

 Strophostyles helvola (L.) Britt., Lewes, Aug. 14, 1907, (1682) ; 



Felton, Sept. 5, 1907, (1736). 

 Strophostyles iimbellata (Muhl.) Britt., Selbyville, October 4, 

 1907, (1987); Wilmington, Oct. 11, 1907, (1932). 

 That the above is an autoecious form was shown by Arthur in 190.". 

 (Jour. Myc. 10:14. 1904). He cultured the form on Strophostyles hel- 

 vola. Pycnia and aecia followed inoculation with over-wintered telio- 

 spores on the same host. 



100. Uromyces Caladii (Schw.) Farl. Ellis, N. A. Fungi 232. 1879. 

 Aecidiu7n Caladii Schw. Schr. Nat. Ges. Leipzig 1:69. 1822. 

 Uromtjces Peltavdrae Howe, Bull. Torrey Club 5:3. 1874. 

 Nigredo Caladii Arth. Result. Sci. Congr. Bot. Vienna 343. 1906. 



On Araceae: 



ArisacDta dracontium Schott., Faulkland, June 4, 1885, A. Com- 

 mons. 



