Seaver: Hypocreales of North America 77 



On old fungi, Polyporiis, Stereum. 



Type locality : Europe. 



Distribution : Ohio. 



Illustrations: Plowright, Grevillea ii: pi. 156. 



Specimens examined: Ohio, Morgan iq, 2J, 57. Also speci- 

 mens from the herbarium of Plozvright. 



The spores are a little larger than indicated for the European 

 specimens but otherwise they conform well. 



7. Hypomyces hyalinus (Schw.) Tul. Ann. Sci. Nat. IV. 13: 



II. i860 

 Sphaeria hyalina Schw. Schr. Nat. Ges. Leipzig i : 30. 1822. 

 ? Hypomyces V an-Bruntianus Gerard, Bull. Torrey Club 4: 64. 



1873- 

 Hypomyces inaequalis Peck, Bull. Torrey Club 25: 328. 1898. 



Peckiella hyalina Sacc. Syll. Fung. 9: 945. 1891. 



Subiculum effused, almost entirely covering the host which is 

 often undeveloped, white, palhd or with a tinge of pink or brown- 

 ish ; perithecia thickly scattered, immersed or partially immersed 

 in the subiculum or with the necks slightly protruding, darker 

 than the subiculum, brownish or reddish-brown; asci cylindrical, 

 8-spored; spores i-seriate with the ends overlapping, usually 

 with a minute apiculus above, or occasionally obtuse, gradually 

 tapering below, often slightly constricted and septate near the 

 base, at first smooth, becoming strongly verrucose, septation less 

 distinct in mature spores on account of the wart-like markings on 

 the surface, constriction usually evident, 15-20 X 5-7 mic, hya- 

 line or very faintly yellowish (pi. 21, f. 12). 



Type on Russnla foetens, also reported on various other 

 agarics which are usually deformed and not easily determined. 



Type locality : N. Carolina. 



Distribution : N. Carolina to Maine. 



Specimens examined: Maine, Fox (type of H. inaequalis) ; 

 Massachusetts, Stiirgis; N. Carolina, Schweinits (type), Murrill 

 & House. 



The species is well distinguished by the spore characters. 

 The above description was drawn from the type in the Schweinitz 

 collection at Philadelphia. 



In the herbarium of the N. Y. Botanical Garden is a letter 



