94 



Mycologia 



109. Uredo Dioscoreae P. Henn. 

 On Dioscoreaceae : 



Dioscorea polygonoides H. & B., El Yunque, April 12, 320. 

 Rajania cordata L., Maricao, March 22, 316, 31$; Tanama 

 River Valley, April 7, 575; Barceloneta, April 8, 317 ; 

 El Yunque, April 12, 318. 

 The first named host is new for the rust. All the collections 

 here listed show a uniform appearance of the uredinia and ure- 

 diniospores, agreeing with those of previous Porto Rican and 

 Cuban collections. 



no. Uredo Heliconiae Diet. 

 On Scitamineae: 



Bihai borinquena Griggs, El Yunque, April 12, 221. 

 This is the first report of the rust for Porto Rico. It was col- 

 lected in 191 3 by Prof. F. L. Stevens in Martinique. The host is 

 a new one for the species. 



in. Uredo gynandrearum Corda. 

 On Orchidaceae: 



Prescottia oligantha (Sw.) Lindl., Maricao, March 16, 

 3*4- 



This collection gives a new host for this rust. The rust was 

 found on Habenaria sp., now determined as H. maculosa Lindl., 

 at Bayamon, P. R., Jan. n, 1899, A. A. Heller 118. 



112. Uredo Hymenaeae Mayor. 

 On Caesalpiniaceae : 



Hymenaea Courbaril L., Fajardo, April 20, 775; Campo 

 Allegra, April 21, ij6; Coamo, April 23, 174; Maya- 

 giiez, March 6, i/ 7, March 13, ij8. 



113. Uredo lutea Arth. 

 On Caesalpiniaceae: 



Cassia quinquangulata L. C. Rich., Maricao, March 16, 

 179; El Yunque, April 14, 180. 



114. Uredo Cabreriana Kern & Kellerm. 

 On Fabaceae : 



Erythrina glauca Willd., Rio Piedras, April n, 775. 



