400 



CLASS BASIDIOMYCETEAE 



Fig. 132. Subclass Teliosporeae, Order Uredinales. Various types of aecia. (A) 

 Cupulate aecium of Uromyces erythronii (DC.) Pass. (B) Margin of caeomoid aecium 

 of Phragmidium rubi (Pers.) Wint., showing absence of peridium but presence of 

 paraphysate hyphae. (C) Hyphoid aecium of Dasyspora foveolata B & C. and a com- 

 pound teliospore. (A-B, after Sappin-Trouffy : Le Botaniste, 5:59-244. C, after 

 Sydow: Mycologia, 17(6):255-262.) 



