248 



Mycologia 



Pleospora coloradensis E. & E. 

 On old stems of Polemonium confertum Gray (14159). 



Pleospora vulgatissima Speg. 



Asci clavate-cylindric, short-stipitate, 8-spored, 80-85 X 20 /x ; 

 spores irregularly biseriate or crowded, constricted only at the 

 middle septum, 3-7-septate, muriform, the upper part of the spore 

 larger and more obtuse, yellowish-brown to dark-brown, 20- 



36 X IO fJL. 



On Baccharis WrightU Gray (13801). Doubtfully distinct 

 from some forms of P. herbarum. 



Pleospora vulgaris Niessl 



Pleospora Scnecionis Earle (PI. Bak. 2: 22) 1901, not Pleospora 

 Scnecionis Fckl., 1869 (Symb. Mycol., p. 136) which is Meta- 

 sphaeria Scnecionis Sacc. (Leptosphaeria Senecionis Wint). 

 On old stems of Scnecio amplectens Gray, Baldy Peak 



(14310 a). 



Pleospora infectoria Fckl. 



On old leaves of Danthonia intermedia Vasey, Baldy Peak 

 (14312 p.p.). Berlese reduces the preceding species to this. 



Pleospora rubicunda Niessl 

 On old stems of Typha latifolia L. (14746 p.p.). 



Clathrospora permunda (Cooke) Berl. 



On Sporobolus auricidatiis Vasey (13617), on Lycurus 

 phleoidcs H.B.K. (15573) an d Allionia linearis Pursh ( 14788 

 p.p.). 



Pyrenophora chrysospora polaris Karst. 



On old stems of Psoralea tenuiflora Pursh (14786) and on 

 old stems of Mertcnsia caclestina Nels. and Cockerell (14329 a, 

 p.p. ) from Baldy Peak. 



