April 1908] Index to North American Mycology 85 



Cystopus pulverulentus B. & C, syn. of Albugo trapogonis q. v. 



Cystopus salsolae P. Sydow. (The spores described as oospores, 

 are borne apparently singly, at the apex of isolated conidio- 

 spores, and are the conidia of some species of Hyphomycetes 

 and rather closely related to Conisporium or Torula. Wil- 

 son.) Bull. Torr. Bot. Club, 34:84. Feb. 1907. 



Cystopus schlechteri P Sydow. (The spores described as 

 oospores are borne apparently singly, at the apex of isolated 

 conidiospores, and are the conidia of some species of Hypho- 

 mycetes and rather closely related to Conisporium or Torula. 

 Wilson.) Bull. Torr. Bot. Club, 34:84. Feb. 1907. 



Cystopus spinulosus de Bary, syn. of Albugo trapogonis q. v. 



Cystopus tillaeae (Lagerh.) Wilson n. n. [Cystopus tillaeae 

 Lagerh.] on Tillaea rubescens H. B. K. [S. A.] Bull. Torr. 

 Bot. Club, 34:76 Feb 1907 



Cystopus tragoponis spinulosus Davis, syn of Albugo trapogo- 

 nis q. V. 



