738 THAXTER. 



cell concolorous, very small, flattened-triangular, bearing two antheri- 

 dia ; the rest of the axis consisting of four, rarely three cells, all bearing 

 two antheridia, except the last, which bears one, and is followed by 

 two others which are superposed; the base of the appendage divergent 

 at an angle of 45°, the rest bent or curved upward, the stout antheridial 

 necks prominent and directed outward. Stalk-cell of the perithecium 

 large, quite hyaline, extending considerably above the insertion of 

 the appendage, the secondary cell subtriangular, extending half way 

 to the base of the primary cell, hyaline below, brownish yellow above, 

 and concolorous with the perithecium and basal cells; which are 

 somewhat larger, irregular in form, extending upward somewhat above 

 the base of the ascigerous cavity; the venter somewhat asymmetrically 

 inflated near the base, often with a slight external angle, tapering 

 distally, the wall-cells slightly spiral, describing about an eighth of a 

 turn, the distal end hardly if at all distinguished from the base of the 

 neck which simulates the usual venter termination, forming a slight 

 enlargement above which the rest of the neck, which tapers slightly 

 and is rather strongly curved outward, is rather clearly distinguished; 

 the tip relatively large, usually slightly inflated and broader than the 

 neck below, the apex short and blunt, the lips hardly distinguishable. 

 Spores about 24 X 2.5 m- Perithecia 125-155 X 35-42 ix. Append- 

 age 52-60 X 15 M. Receptacle 85-140 X 20-24 ix. Total length 

 250-350 M- 



On the wings and tip of abdomen of Diopsis sp. No. 2301, Kam- 

 erun, \Y. Africa. 



Specimens of this peculiar form have been examined from several 

 individual hosts, and in all cases are somewhat irregularly developed, 

 the asci in many cases not maturing well. It is allied to the other 

 species on Diopsis, but is readily distinguished from S. Diopsis, the 

 only other form having a strongly divergent appendage in the char- 

 acters of the latter as well as in other respects. 



Stigmatomyces Schwabianus nov. sp. 



Color throughout nearly uniform dirty \ellowish. Receptacle 

 relatively small, somewhat curved, the basal cell tapering below, the 

 subbasal cell somewhat shorter and broader. Stalk-cell of the 

 appendage somewhat prominent distally, a secondary thickening 

 invohing its upper half or more; the appendage nearly erect, slightly 

 incurved; the antheridia external and superposed in an almost uni- 



