148 Jackson: Sorosporium Ellisii Winter 



Sorosporitim Ellisii Winter 

 Andropogon, which has the 

 On Poaceae : 

 Andropogon virginicus L. 



Jersey 



Andropogon scoparius Michx. Connecticut, Illinois, Kansas. 

 Type Locality : Newfield, N. J., on Andropogon virginicus L. 

 Exsiccati: Seym. & Earle, Econ. Fungi C 38 ; Ellis & Ev. 



N. A. Fungi 10pp. 



>n Andropogon 

 sporiwn Ellisii 

 v. The name 



Winter f. Andropogonis and f. Aristidae respective], 

 Sorosporium Aristidae is, however, untenable^ The following 

 name with description is proposed for the form on Aristida. 



Sorosporium confusum sp. no v. 



Son in the ovaries, enclosed by the enveloping glumes, elon- 

 gated, tapering above, 3 mm. in length, provided with an incon- 

 spicuous membrane which ruptures irregularly : spore-balls irreg- 

 ular subglobose or elongated, 30-100 ft in length, at first firm, but 

 easily separating into spores : spores subspherical or polyhedral, 

 frequently flattened and so appearing elongated or subcircular in 

 section, according to view, mostly 12-14//, occasionally only 10// 

 and reaching 15.5 fl in length ; wall verruculose. 



On Poaceae : 



M 



Pennsylvania, Trimble ; Ohio; Dela- 



Jackson 

 purpurascens Poir. (?) Alabama. Und 



Type locality : Newark, Delaware, on Aristida dichotoma. 

 Distribution : Delaware to Ohio and Alabama. 

 Exsiccati : Ellis & Ev. N. Am. Fungi i 494 . 



The two species are easily separated by the character of the 

 sorus. In S. Ellisii the whole infloresence is affected, in S. con- 



The spores in the latter are somewhat 



smaller than in the former. 



The Delaware specimen is selected as the type because it is 

 the best, material we have seen. The specimens in Ellis & Ev. 

 N lAJ^ n s!/W are mostly bar ren. This fact, together with 



* Taken from Clinton, N. A. I l^JT^T igooT ~~~ . 



shed 6 ?) rd °' Syll ° ge Fung0rum J 3 : I2 3! Sorosporium Aristidae Neg. (un- 



published?). 



