Arthur: Uredinales of Porto Rico 



85 



The host is new for the species. 



81. PUCCINIA TAGETICOLA Diet. & Holw. 



On Carduaceae : 



Tagetes erecta L., Maricao, March 25, II, 161. 

 The host, a native of Mexico, but cultivated in gardens under 

 the name of African marigold, is a new one for the rust. 



82. Puccinia Spegazzini DeT. 



On Carduaceae: 



Mikania scandens (L.) Willd., Mayagiiez, March 13, 20, 

 168. 



The rust is now first reported for Porto Rico, but previously 

 collected in Martinique by Prof. F. L. Stevens. It is a common 

 tropical species. 



83. Puccinia Synedrellae P. Henn. 



On Carduaceae : 



Emilia sonchifolia DC, Mayagiiez, March 4-6, 143, March 



7, 144, March 9, 145; Maricao, March 15, 146, March 



25, 141 ; Anasco, March 28, 148. 

 Synedrella nodi flora (L.) Gaertn., Mayagiiez, March 4-6, 



152, March 13, 153; Yauco, March 31, 154; El Duque, 



April 19, 155. 



84. Endophyllum circumscriptum (Schw.) Whetzel & Olive 



(Aecidium circumscriptum Schw.). 

 On Vitaceae : 



Cissus sicyoides L., Mayagiiez, March 4, 6, 9, 75, March 

 20, 26, 76, March 29, 82; Maricao, March 16, 77; Yauco, 

 March 31, 80; Tanama River Valley, April 7, 81; Rio 

 Piedras, April 21, 797 Coamo, April 24, 78. 

 In the Stevens list of Porto Rican rusts (Mycol. 7: 316) the 

 family of the host was incorrectly given as " Cucurbitaceae." 



This species of Endophyllum, and the three which follow, have 

 the general appearance of aecia, especially of the heteroecious 

 forms belonging to grass and sedge rusts. The brilliant studies 

 of Messrs. Whetzel and Olive, however, have fully demonstrated 

 their telial character. 



