Jan. 1907] New Genera of Uredinales 31 



PROSPODIUM Arthur gen. nov. 



Cycle of development includes pycnia, uredinia and telia, all 

 subcuticular. 



Pycnia hemispherical, hymenium flat, without ostiolar fila- 

 ments. 



Uredinia early naked, encircled by paraphyses ; uredinio- 

 spores borne singly on pedicels, wall colored, echinulate, often' 

 with a hygroscopic layer. 



Telia erumpent, surrounded more or less by paraphyses ; 

 teliospores two-celled by transverse septum, wall colored, with a 

 thin, hygroscopic, hyaline layer, sparsely papillose, pores one in 

 each cell, apical in upper cell, near the pedicel in' lower cell ; pedi- 

 cel refractive, usually appendaged. 



Type species : Puccinia appcndiculata Wint., on Bignonia^ 

 ceae. This genus is related to Uropyxis by its subcuticular pyc- 

 nia, encircling paraphyses in the uredinia, and hygroscopic layer 

 of the teliospores, but differs in having only one pore in each 

 cell of the teliospores. 



Prospodium appendiculatum (Wint.) Arthur nom. nov. 



Puccinia appcndiculata Wint. Flora 1884:262; Piiccinia or- 

 nata Harkn. Proc. CaHf. Acad. II, 2:231, 1889; Puccinia mc- 

 dusaeoides Arth., Bot. Gaz. 16:226, 1891 ; Dicaeoma Stantis 

 Kuntze, Rev. Gen. PI. 3:467, 1898; Dicaeoma appcndiculata 

 Kuntze, Rev. Gen. PI. 3:467, 1898; Puccinia Tecomae Sacc. & 

 Syd., Syll. Fung. 14:358, 1899. On Stenolohium Stans (L.) 

 Don. (Tecoma Stans Juss., T. sambucilf olia H. B. K.), Cuba, 

 Mexico, South America. 



Prospodium Amphilophii (D. & H.) Arthur nom. nov. 



Puccinia Amphilophii Diet. & Holw., Bot. Gaz. 24:30, 1897; 

 Puccinia phlyctopus Syd., Monog. Ured. i :242, 1902. On Pithe- 

 cocteniiim hexagonum DC. (not Amphilophiiim, as originally 

 published) , Mexico. 



NEPHLYCTIS Arthur gen. nov. 



Cycle of development includes pycnia and telia, both sub- 

 cuticular. 



Pycnia hemispherical, hymenium flat, without ostiolar fila- 

 ments. 



Telia erumpent, without peridium or paraphyses ; teliospores 

 two-celled by transverse septum, colored, with a usually obscure 

 hygroscopic layer, sparsely papillose, pores one in each cell, apical 

 in upper cell, near the pedicel in lower cell ; pedicels without 

 appendages. 



Type species : Puccinia clegans Schroet.. on Tecoma Stans 

 Juss. Closely related to Prospodium, but with fewer spore-forms, 

 and short, unappendaged pedicels to the teliospores. 



