REPORT OF THE STATE BOTANIST I9II 45 



NEW SPECIES AND VARIETIES OF EXTRALIMITAL 



FUNGI 



Cercospora eustomae 



Spots suborbicular, definite, grayish or grayish brown, surrounded 

 by an elevated Hne ; hyphae amphigenous, densely aggregated on the 

 spots or occupying large areas of the unspotted parts of the leaves, 

 simple or septate, irregular or nodulose at the top, 30-60 x 4-6 n ; 

 spores very variable, straight, curved or flexuous, often irregular or 

 of unequal diameter in different parts, oblong or subcylindric, sub- 

 hyaline, continuous or obscurely 1-2-septate, 20-60 x 4-6 /x. 



Living leaves of Eu stoma andrewsii A. Nels. and E. 

 russellianum (L.) Griseb. September. Denver, Colorado. 

 E. Bethel. Wood River, Nebraska. J. M. Bates. 



The species is peculiar in the variability of its spores. The tufts 

 of hyphae are sometimes so crowded that they appear to form an 

 effused sooty stratum. 



Cercospora pastinacae (Sacc.) comb. nov. 



Spots small, inconspicuous, amphigenous, yellowish green or 

 brown, bounded by veinlets ; hyphae hypophyllous, aseptate, nodu- 

 lose at the top, pale brown, 40-60 x 6-8 /x; spores oblong or cylin- 

 dric, rarely narrowed toward the apex or when uniseptate having 

 the apical cell narrower than the other, straight or curved, 1-3- 

 septate, 25-85 x 6-8 /x. 



Living leaves of parsnip, Pastinaca sativa L. Red Cloud, 

 Nebraska. October. J. M. Bates. 



This fungus was originally referred by Mr Ellis to Cercos- 

 pora a p i i Fres. though with some hesitation, as he says that 

 he is strongly of the opinion that it will yet prove to be distinct. 

 Professor Saccardo later gave it the name Cercospora apii 

 pastinacae Sacc. It appears to us to be a distinct species in its 

 numerous small spots limited by the veinlets of the leaf, in its 

 broader aseptate hyphae and specially in its broader subcylindric 

 conidia with only 1-3-septa. 



Cercosporella mirabilis 



Spots angular, irregular, 2-10 mm long, sometimes confluent, at 

 first yellowish or palhd, soon reddish brown; hyphae long, creeping, 

 branched and interwoven or short, simple, erect, hypophyllous, hya- 

 line; spores cylindric or gradually tapering from near the base to 



