736 THAXTER. 



tinged with reddish. Basal cell of the receptacle usually slightly 

 longer than the subbasal, and distally slightly broader. The stalk- 

 cell of the appendage somewhat broader than long, with distal second- 

 ary thickening. Axis of the appendage consisting of five cells, the two 

 lower more deeply colored; the basal broader than long, sterile; the 

 subbasal sometimes larger and, like the third and fourth, bearing two 

 antheridia, the fifth bearing but one, which is surmounted by two 

 superposed; the appendage rather stout, tapering to a point distally, 

 lying flat against the venter, which it crosses obliquely, extending 

 beyond it, the antheridia turned to the right. Stalk-cell of the 

 perithecium relatively large, the cells of this region indistinguishable 

 from the fact that the mature individual, owing to its curvature, 

 presents either an anterior or posterior view. Venter somewhat 

 asymmetrical, more or less inflated distally, not very abruptly dis- 

 tinguished from the stout neck, which merges into the cur\-ed blunt 

 tip and apex with slight differentiation; the lips hardly distinguished. 

 Spores about 28 X 3.5 /x. Perithecia 100-112 X 28-35 /x- Append- 

 age about 50 X 12 ix. Receptacle 45-50 X 16 m- Total length 180- 



200 M. 



On the legs and wings of a species of Diopsis. No. 2303, Kamerun, 

 W. Africa. 



Distinguished from other known species on Diopsis h\ its appendage, 

 the axis of which includes but five cells. The wall-cells of the venter 

 and neck appear to have a slight continuous twist, the course of which 

 cannot be clearly made out. The material, though not abundant, 

 was obtained from three different individuals of the host. 



Stigmatomyces longirostratus nov. sp. 



Pale dirty brownish yellow throughout, greatly elongated. Basal 

 cell slightly curved and tapering below, distally broader than the 

 base of the somewhat paler and slightly longer subbasal cell, the 

 margins of which are somewhat convex. Stalk-cell of the appendage 

 about four times as long as broad and of nearly equal diameter through- 

 out, the distal end modified by a secondary thickening, which is 

 deeply colored and about as large as the basal cell of the appendage. 

 Appendage slightly divergent, elongate, tapering, slender; its axis 

 consisting of twelve cells; the basal sterile, somewhat longer than 

 broad, more deeply colored; the subbasal concolorous, half as long 

 as broad, bearing two antheridia, as do all the other cells of the axis 



