34 NEW YORK STATE MUSEUM 



ally two are crowded together thereby indicating an approach to the 

 genus Haplosporella. 



Spongipellis occidentalis Murr. 

 Prostrate trunk of American ehn, Ulmus americana L. 

 Vaughns. October. S. H. Burnham. 



Stagonospora carpathica BaeumL 

 Living leaves of alfalfa, Medicago sativa L. Geneva. 

 June. F. C. Stewart. The typical form of the species occurs on 

 leaves of sweet clover, M e 1 i 1 o t u s alba Desv. but the form 

 on alfalfa leaves does not differ essentially from it. 



Steccherinum peckii Banker ined. 

 Dead wood of sugar maple, Acer saccharum Marsh. 

 Griffin Corners, Delaware co. September. The species is related 

 to Steccherinum o c h r a c e u m (Pers.) S. F. Gray from 

 which it differs in having a distinct stemlike base and in being 

 glabrous and more distinctly zonate. The pilei are often laterally 

 confluent as in Stereum fasciatum Schw. 



Steganosporium fenestratum (E. & E.) Sacc. 

 Twigs and branches of sweet pepperbush, Clethra alni- 

 folia L. Orient Point. May. R. Latham. 



Stigmina populi (E. & E.) Pk. 

 Living leaves of American aspen, Populus tremuloides 

 Mx. North Elba. June. This is a parasitic fungus which causes 

 dead spots on the leaves. These spots increase in size and often 

 become confluent and kill the leaves. The spores develop on both 

 sides of the leaf and form dark olive green patches on the dead 

 spots. The species was placed in the genus Clasterosporium by 

 Ellis and Everhart, but its phyllogenous and biophilous characters 

 evidently indicate a closer relationship to the genus Stigmina. 



Teichospora trimorpha n. sp. Atk. 

 Perithecia scattered or gregarious, rounded, orbicular or oblong, 

 rarely two or three conjoined, plane or shortly papillate, black, sunk 

 in the bark; asci dimorphic, 30-125 x 12-15 fx, cylindric or tapering 

 very gradually into a short pedicel, some collapsing, 4-6- or 8- 

 spored; spores uniseriate, 20-30x7-10 /x, constricted in the middle 

 5-8-septate, blackish brown, frecpiently inequilateral, paraphyses 

 filiform, numerous. 



