156 NEW YORK STATE MUSEUM 



Perichaena ochrospora «. sp. 



Sporangia closely gregarious, hemispheric, globose or subglobose, 

 \-\ of a line broad, sessile, cinereous, sometimes with a reddish tint, its 

 walls membranaceous; spores globose, ochraceous or greenish ochraceous? 

 .0006-.0007 of an inch broad. Bark. Lyndonville. Dr C. E. Fairman. 



This species departs from the character of the genus to which it is 

 here referred, in having no capillitium. In this respect it is closely allied 

 to Perichaena marginata Schw. from which it is separated by 

 the absence of any incrustation of the peridium, by the color of the spores 

 and by the lack of the distinctive white hypothallus of that species. 



Phoma pustulata Sacc. 

 Dead branches of maple. Geneva. April. F.C.Stewart, 



Cryptosporium cerasinum //. sp. 



Pustules erumpent, .002-.003 of an inch broad, surrounded by the 

 ruptured and slightly elevated remains of the epidermis, whitish within ; 

 spores slender, curved or sigmoid, gradually tapering toward the acute 

 extremities, often containing several shining nuclei, .0016-.002 of an inch 

 long, .00012-.00016 broad, supported on short sporophores. 



Branches of cherrytrees. Lewis. April. F. C. Stewart and F. M. 

 Rolfs. Sometimes the pustules are clustered, and several appear in a 

 single rupture of the epidermis, thereby suggesting species of V a 1 s a. 



Septoria carpogena E. &> E. 



Old fruit of hackberry, Celtis Occident a lis. Saugerties. May. 



Septoria piricola Desm. 



Living leaves of peartrees. Menands. October. 



Coniothecium sociale n. sp. 

 Tufts minute separate or confluent, erumpent or superficial, when 

 effused, forming a thin, black crust; spores variable, subglobose, oblong 

 or irregular, .0016-.005 of an inch long, composed of few or many subglo- 

 bose cells which are .ooo3-.ooa6 of an inch broad. Mummified plums 

 and their pedicels and on plum twigs near them. Geneva. F. C. Stew- 

 art ; also at Menands. April. Closely allied to C. s a c c h a r i n u m Pk. ^ 

 from which it is separated by its more rugged crust and larger spores. 

 The species is variable and is apparently limited in its habitat to plums 

 destroyed the previous year by M o n i I i a f r u c t i g e n a 5 and to parts 

 of twigs and branches near them. 



