140 Mycologia 



t 



on other hosts are quite commonly given under P. lateripes Berk. 

 & Rav. Considerable variation exists in the size of the spores, 

 generally influenced by the succulency of the host. 



82. Puccinia Elytrariae P. Henn. (on Acanthaceae) 



Tubiflora squamosa (Jacq.) Kuntze (Elytraria squamosa Lind.), 

 Orotina, Dec. 29, 191 5, 312. 

 A short-cycle rust occurring also in Mexico and Guatemala, as 

 well as in South America. 



83. Puccinia lateritia Berk. & Curt, (on Rubiaceae) 

 Borreria ocymoides (Burm.) DC, San Jose, Dec. 11, 191 5, 250; 



same, Dec. 26, 191 5, 2pp. 

 Coccocypselum hirsutum Bartl, hills southwest of Cartago, Dec. 

 22, 191 5, 279. 



A common short-cycle rust, found on many hosts. The second 

 host named is new for the species. 



84. Puccinia punctata Link (on Rubiaceae) 

 Galium uncinatum DC, slopes of Volcan de Irazu above Cartago, 

 Dec. 23, 1915, II, 284. 

 A common long-cycle rust, especially well developed in tem- 

 perate regions. 



85. Puccinia rotundata Diet, (on Carduaceae) 

 Vernonia patens H.B.K., Orotina, Jan. 1, 1916, O, III, 343. 



A short-cycle rust described from South America and now first 

 reported from North America. 



86. Puccinia discreta Jacks. & Holw. (on Carduaceae) 

 Vernonia Deppeana Less., San Jose, Dec. 15, 191 5, O, III, 260; 

 same, Dec. 27, 1915, O, III, 305; same, Jan. 3, 1916, III, 

 363 ; same, Jan. 10, 1916, III, 406. 

 A short-cycle form found also in Guatemala, although the type 

 of the species is no. 260, cited above. It is a microform, usually 

 occurring on the leaves of terminal shoots from young plants. 



