40 PROCEEDINGS OF THE AMERICAN ACADEMY. 



tinguished ; one of the lip-cells forming a blunt, terminal, irregularly 

 curved, hyaline, sometimes abruptly distinguished projection, below the 

 base of which arises on the inner side a tongue-like outgrowth externally 

 and basally blackish brown, the broad rounded hyaline end of which is 

 curved against or across the base of the terminal outgrowth; the stalk- 

 cell small, the basal cells collectively larger, and separated from it by a 

 very oblique septum. Basal cell of the receptacle long, black, obconical, 

 the narrow base translucent ; the subbasal cell small, nearly triangular. 

 Appendage consisting of five very obliquely superposed cells, the two 

 lower nearly equal, the cells ahove successively smaller, but equal in 

 length ; the branches which are once or twice branched and extend about 

 to the middle of the perithecium, arising from the whole surface of their 

 inner margins, the terminal cell soon destroyed. Spores 55 X S /x. 

 Perithecia 135 X 36/a. Basal cell of receptacle 120 fx. Appendage 

 without branches 55 //.. Total length to tip of perithecium 290-310 jx. 

 On the abdomen of Quedionuchus impunctus Sharp. San Andres, 

 Vera Cruz. Sharp Collection, No. 1105. 



Sphaleromyces Chiriquensis nov. sp. 



Almost uniformly translucent dirty amber brown. Perithecium very 

 large and crowded with spores, long, with a very slight general inflation, 

 the base narrower, tapering abruptly at the short tip : one of the lip-cells 

 forming an erect, median, straight, hyaline, cylindrical or slightly in- 

 flated, nearly truncate terminal projection, which is subtended by a 

 posterior or partly lateral, somewhat larger, spine-like, slightly diver- 

 gent, deep black brown, nearly straight or slightly outcurved pointed 

 outgrowth, its tip nearly on a level with that of the median projection : 

 the basal cells collectively slightly larger than the short stalk-cell, and 

 not distinguished from the base of the perithecium. Basal cell of the 

 receptacle very large, tapering throughout from the broad distal to the 

 narrow basal end, paler than the small, flattened, deeper brown subbasal 

 cell. The appendage consisting of a relatively large basal stalk-cell, 

 which is slightly longer than broad, and partly united to the stalk-cell 

 of the perithecium; above are four short successively smaller cells, their 

 septa slightly oblique, the three lower bearing branches as usual, which 

 may branch once above their basal cells, the branchlets brown, erect, 

 rigid, closely aggregated ; the uppermost cell paler, with a terminal 

 branch. Spores 50 X 2 /x. Perithecia 220-250 X 40-48 fx, to tip of 

 median projection, the subterminal process 25 X 7 p; the stalk-cell 35 

 X 25 p. Receptacle 240 X 40 jx, the basal cell 220 fx. Total length to 



