46 PROCEEDINGS OF THE AMERICAN ACADEMY. 



the basal cells very small, but clearly defined ; the lower third united 

 to cell III; the inner margin above it vertical, straight as far as the 

 insertion of the trichogyne, above which the tip bends inward more 

 or less distinctly; the outer margin abruptly bent opposite the inser- 

 tion of the appendage, forming a considerable angle, so that the body 

 appears to be bent inward ; the portion of the margin above this angle 

 running straight to the hardly distinguished tip; the somewhat com- 

 pressed hyaline apex subtended externally by a distinct rounded 

 hyaline prominence; the pore terminal; the lip-cells not prominent. 

 Perithecium 80-90 X 32 ju. Basal and subbasal cells of receptacle 

 50-70 X 16 ju. Appendage, including antheridia, 30-32 fx. Cell III, 

 28 X 7 ju. Total length to tip of perithecium 140-160 ju. 



On elytra of Epitrix convexa Jac, No. 2462, Port of Spain, Trini- 

 dad. 



In general form this species most nearly resembles C. Chaetocne- 

 mae from which it is easily separated by the form of the perithecium 

 and the peculiar external prominence which subtends its apex. 



Ceraiomyces obesus nov. sp. 



Cells I and II faintly brownish, distinguished by a constriction; 

 the former more than twice as large as the latter, its lower half nar- 

 rowed to the foot; cell III concolorous with the perithecium, united 

 to it throughout, and extending nearly to its middle. Appendage 

 arising from an oblique insertion, marked by a dark septum, hyaline, 

 consisting of two or three very small hardly distinguishable cells 

 bearing usually two inner and one outer antheridium. Perithecium 

 somewhat more than half free above the insertion of the appendage, 

 arising obliquely and externally from cell II, which it almost conceals 

 when not viewed laterally, its outline almost symmetrically long-oval : 

 uniform rich translucent brown, tapering to the rather broad, blunt, 

 slightly oblique apex; the hyaline lip-edges bearing each a minute 

 but distinct papilla, and subtended by darker shades. Perithecium 

 106-112 X 52-60 /x. Appendage including antheridia 18 fx. Recepta- 

 cle, cells I-II, 52 X 18 ju; cell III, 36 X 10 ju. Total length to tip of 

 perithecium 140-160 ju. 



Near base of anterior legs of Epitrix convexa Jac, Port of Spain, 

 Trinidad, No. 2464. 



This species is distinguished by its relatively very large, nearly 

 symmetrically oval perithecium, the axis of which is at a considerable 

 angle to that of the receptacle, when viewed laterally. 



