84 



Mycologia 



77. Puccinia Blechi Lagerh. 

 On Acanthaceae : 



Blechum Brownei (Sw.) Juss., Mayagiiez, March 3, 4, 9. 



II, I2 7 . 



78. Puccinia fallaciosa comb. nov. {Uredo fallaciosa Arth. 



Mycol. 7: 323- I9I5)- 

 On Rubiaceae : 



Palicourea crocea (Sw.) R. & S., Mayagiiez, March 6, 27, 

 II, J5<?; Maricao, March 23, II, iii, 555. 



Palicourea riparia Benth., El Yunque, April 12, II, J50. 



Psychotria patens Sw., Maricao, March 21, II, j<5^. 

 The uredinia on these several collections are uniformly alike. 

 The host genera are closely related, and the leaves of the several 

 species have the same texture and general appearance. A num- 

 ber of rusts have been described on these hosts from South 

 America, but none of them have been seen by the writer. Uredo 

 psychotriicola P. Henn. from Brazil is similar, except the spores 

 are said to be verrucose. Uredo Palicoureae P. Henn. from Peru 

 appears to have much smaller spores, which is also the case for 

 the urediniospores of Puccinia Psychotriae P. Henn. from Brazil, 

 although the teliospores of this species agree fairly well. There 

 is also a Uromyces Psychotriae P. Henn. from Brazil. 



79. Puccinia lateritia Berk. & Curt. 

 On Rubiaceae : 



Borreria levis (Lam.) Griseb., Mayagiiez, March 1, 2, 13, 

 293- 



Borreria verticillata (L.) G. F. W. Mey., Barceloneta, 

 Feb. 25, 286, April 6, 289; Mayagiiez, March 7, 290, 

 March 13, 292; Maricao, March 7, 28?, March 16, 291; 

 San German, April 1, 288. 



Diodia littoralis Sw., Boqueron, March 11, 285. 



Diodia maritima Thonn., Mayagiiez, March 3, 283; San- 

 turce, April 24, 284. 



Diodia rigida C. & S., Mayagiiez, March 7, 282; Bar- 

 celoneta, April 6, 281; Campo Allegra, April 21, 280. 



80. Puccinia rosea (Diet. & Holw.) Arth. 

 On Carduaceae: 



Ageratum conyzoides L., Yauco, March 31, II, 158. 



