98 UREDIXACEAE 



a. Asci elongate; gleba not divided into masses 



Choeromyces 8:900 



b. Asci ovate to globose; gleba divided into masses 



Terfezia 8:902 



Order 13. UREDINALES 

 Apothecia reduced to a mass of persistent or evanescent asci, waxy, leathery, 

 gelatinous or powdery ; parasites. 



Family 58. UREDINACEAE 



7 : 528, 9 : 291, 1 1 : 1 74, 14 : 269. 16 : 257. 17 : 244 



Parasitic; apothecia reduced to a mass of asci with fixed spore cells., i. e., 

 teleutospores with 1 or more cells ; conidia normally present . produced in cluster 

 cups (aecidia, aecia), sori (uredinia), or spermagonia (pyenia) ; the asci and co- 

 nidia may occur on the same host or upon different hosts, or one or the other alone 

 may occur ; teleutospores producing a promycelium and sporidioles upon germination. 



Amerosporae 



Teleutospores i-celled, colored, rarely hyaline, or absent 

 I. Teleutospores present 



1. Teleutospores hyaline 



a. Teleutospores catenate Monosporidium 9:297 



b. Teleutospores single Zaghouania 17:268 



2. Teleutospores colored 



a. Spore mass or sorus horizontal 



(1) Teleutospores catenate 



(a) Spores in a pseudoperidium Dietelia 14:291 



(b) Spores not in a pseudoperidium Clastopsora 17:263 



(2) Teleutospores not catenate 



(a) Uredospores not in a pseudoperidium 

 x. Spores half smooth, half roughened 



Hemileia 7: 585 

 y. Spore cells alike smooth or rough 



(x) Teleutospores on a stalk Uromyces 7:531 



(y) Teleutospores not stalked 

 m. Teleutospores connate in a lenliform layer 



fUromycodes 14:29c 

 (Schroeteriaster) 

 n. Teleutospores not connate Chaconia 14: 290 



(b) Uredospores in a pseudoperidium 



x. Teleutospore sorus determinate, black or dark-brown 



Melampsora 7:586 



(inch Phacopsora 14: 289) 

 y. Teleutospore sorus indeterminate, pale or reddish 



Melampsorella 7:596 



(inch Hyalopsora 17:268) 

 ti. Spore mass or sorus with a cylindric columella, more or le>s vertical, glo- 

 bose to cylindric 



