98 UREDINACEAE 



a. Asci elongate; gleba not divided into masses 



Choeromyces 8: goo 



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, 11:174, 14:269, 16:257, 17:244 

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

 teleutospores with I or more cells; conidia normally present, produced in cluster 

 cups (aecidia, aecia), sori (uredinia), or spermagonia (pycnia) ; 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 l-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 lentiform layer 



tUromycodes 14: 290 

 (Schroeteriaster) 

 n. Teleutospores not connate ,_ Chaconia 14:290 



(b) Uredospores in a pseudoperidium 



X. Teleutospore sorus determinate, black or dark-brown 



Melampsora 7 : 586 



(incl. Phacopsora 14: 289) 

 y. Teleutospore sorus indeterminate, pale or reddish 



Melampsorella 7 : 596 



(incl. Hyalopsora 17:268) 



b. Spore mass or sorus with a cylindric columella, more or less vertical, glo- 



bose to cylindric 



