64 



Mycologia 



type species of the genus Dietelia, and have consequently trans- 

 ferred it to that genus, as D. Canavaliae (Arth.) Syd. The 

 writer, however, holds that this rust, being a long cycle form, 

 should not be placed in a short cycle genus, like Dietelia, even 

 if the telia be similar. 



13. SCHROETERIASTER FENESTRALA Arth. 



On Euphorbiaceae : 



Phyllanthus distichus (L.) Muell.-Arg. (Cicca disticha 

 L.), Mayagiiez, March 13, II, 323; Guanica, March 30, 

 II, 324. 



Phyllanthus Niruri L., Rio Piedras, April 22, II, 238. 

 The last host is new for the rust. Although these three col- 

 lections show uredinia only, yet in so far they confirm the view 

 at first expressed (Mycol. 7: 332. 1915), that the form on P. 

 distichus is the same rust as the one on P. grandiflorus, although 

 the urediniospores range a trifle smaller, with paler walls. The 

 form on P. Niruri is like that on P. distichus in the character of 

 the urediniospores, with possibly still paler spore-walls. Sections 

 from P. Niruri gave good details for the peridium, and con- 

 firmed the original description. 



Family : Aecidiaceae (Pucciniaceae) 



14. Ravenelia Indigoferae Tranz. 



On Fabaceae : 



Indigofera suffruticosa Mill. (/. Anil L.), Mayagiiez, 

 March 2-20, II, 190; Anasco, March 28, II, 192; Yauco. 

 March 30, II, 191 ; Barceloneta, April 5, II, 193; Na- 

 guabo, April 19, II, 194. 



15. Ravenelia Ingae (P. Henn.) Arth. 



On Mimosaceae : * 



Inga laurina Willd., Maricao, March 24, O, II, 210; El 

 Yunque, April 14, O, II, 209. 

 The host is a new one for the species. 



16. Ravenelia Whetzelii sp. nov. 



On Mimosaceae: 



Inga vera Willd., Maricao, south, March 23, O, II, 207, 



