'24 TILA.XTER. 



Stigmatomyces Borbori nov. sp. 



Basal cell of the receptacle tapering below or constricted in the 

 mid-region, the subbasal cell broad and distinctly longer, of nearly 

 uniform diameter, the margins somewhat convex. Stalk-cell of the 

 appendage small, broader than long, slightly convex externally, the 

 insertion relatively broad, lying opposite the middle of the primary 

 stalk-cell. Axis of the appendage usually consisting of six cells; the 

 basal contrasting yellowish brown, broader than long, nearly sym- 

 metrical; the rest hyaline, successively slightly smaller, externally 

 abruptly con\'ex, irregularly and broadly elliptical in outline, their 

 axes horizontal, or but slightly oblique; the basal and subbasal cell 

 bearing each four superposed antheridia, the third and fourth each 

 three, all borne on the inner side of the appendage, obliquely super- 

 posed, and directed to the right; the fifth cell small, and associated 

 with two abortive antheridia, one of them terminal, the tips of which 

 are imperforate and vesicular. Stalk-cell of the perithecium free 

 on both sides, longer than broad, distally separated obliquely from 

 the secondary stalk-cell, which is about as long; the outer basal 

 cell overlapping the ascigerous cavity throughout its length, and 

 ending in an abrupt elevation a short distance below the middle of 

 the body of the venter; the inner large and extending somewhat above 

 the base of the ascigerous cavity, ending in a prominence similar to 

 that of the outer, but much lower: the whole basal and stalk-cell 

 region forming a well developed stalk of nearly uniform diameter, or 

 with somewhat convex margins, the axis of which diverges from that 

 of the receptacle and appendage, and coincides with that of the peri- 

 thecium: venter yellowish, straight, slightly inflated; the wall-cells 

 with a slight twist which involves the neck, ending in distinct eleva- 

 tions below which the margins are slightly concave, and clearly dis- 

 tinguishing the slightly spreading base of the hyaline, slightly curved 

 neck; which tapers slightly, and is distinctly bent at its junction with 

 the tip; the latter yellowish brown; the apex rather abruptly dis- 

 tinguished externally, distally relatively broad, oblique, and externally 

 prominent; the lip-cells not individually distinguished. Spores 

 3oX4.5ju. Perithecia 110-120 X 3o yu. Appendage, including an- 

 thericHa 56 X 25 m- Receptacle G5-6S X 24 fx. Total length to tip 

 of perithecium 200-240 m- 



On Borborus sp. No. 2732, Kamerun, West Africa. 



A species most nearh- related to S. Borhoridinus from which it 



