On decorticated branches of Populus monilifera, Memphis. 

 (4578) 



STILBAOEAE. 



Trichurus Clements and Shear nov. gen. 



As in Stysanus, but the capitulum densely beset with long 

 strict bristles. 

 Trichurus cylindricus Clements and Shear. 



Solitary or gregarious; stipe simple, or sometimes two aris- 

 ing from the black base, attenuate above within the capit- 

 ulum, strict, erect, broad, glabrous, black, opaque, com- 

 posed of indistinct hyphae 2J fi wide, |— 2^ mm. long, 

 35—85 fi thick; capitula elongate, linear or clavate-cylin- 

 drical, equal, or sometimes attenuate towards the apex, 

 gray-fuscous, f-2^ mm. long, 18-30 /« thick, densely be- 

 set with acute, rectilinear, fuscous, few- septate, simple, 

 or rarely 2- 3-f urcate bristles, 60-120x2 pi ; hyphae brown- 

 ish-fuscous, short, pseudo-verticillately, or ramosely 

 branched; conidia catenulate, oblong-elliptical, smooth, 

 slightly glaucous, 8-9x8 //. 



On decaying seeds of Cucurbita maxima, in the laboratory, 

 Lincoln. (4744) 



TUBEEOULAEIACEAE. 



Fusarium hymenula Pound and Clements. 



Sporodochia minute, yi(,-~r^i^-) gregarious, orbicular, or ob- 

 long, disciform, without white-tomentose, within at first 

 dilutely amber-colored, then black, margin slightly ele- 

 vated, flexuous, white; sporophore long, 2-4-verticillat6ly 

 branched, branches short, ascending, or erect, appressed, 

 35-40x2 /i; conidia oblong, wider toward either end, 

 simple, rounded, straight, hyaline, 10-12x3-4 fi. 

 On dead leaves of Heliathus, Wabash. An Hymenula, with 

 verticillately-branched sporophore. (4258) 



