|42 PROCEEDINGS OP THE AMERICAN ACADEMY. 



rise to a brancb on the inner - : 1 ■•. which in the Bubbasal cell and the 

 ,.,.11 a00 insist of a wry large broad basal cell, from which arise 



from two to four Bubhyaline branches which may be once branched, the 

 branches crossing the Btalk and basal cells of the perithecium obliquely, 

 usually on the left Bide, bo thai when the perithecium lies at the left, the 



adages lie above them. Spores 85 X 8.5/*. Peritl la 175 200 x 



15 fiy the stalk and basal cells together 50-70 X 17-20/t. Receptacle 

 85-100 X 10/,,. Total length to tip of perithecium 270-350/1. Appen- 

 dage without branches 50 75 (i. 



On Quedius graeiliventris Sharp, British Museum, No. 7 1" (Biologia 

 Coll.), Vblcan de Chiriqui, Panama; on Q. basiventria Sharp. No. 741, 

 from same locality- On abdomen. 



Sphaleromyces Brachyderi nov. Bp. 

 Perithecium evenly suffused with brown, paler distally, Bomewhat 

 inflated at the base, tapering Blightly toward the tip; an external deep 

 brown almost opaque appendage projects subterminally, exceeding tin- 

 til) of the perithecium, broad with a nearly median indentation of the 

 inner side, the miter margin slightly, the upper strongly curved outward, 

 terminating in a short blunt point or slightly inflated portion rather 

 abruptly distinguished on its inner side; the tip asymmetrical, one of 

 the outer lip-cells extending above and free from the others, forming a 

 hyaline bluntly pointed termination at the base of which the tips of the 

 other lip-cells form irregular prominences; basal cells concolorous, stalk- 

 cell short and similar to the basal cells. Basal cell of the receptacle very 

 large, long, attenuated below and deeply blackened, as in Camptomj 

 the distal cell subtriangular concolorous with the Btalk-cell. Appendage 

 consisting of four or five rather flattish brown cells, decreasing in size 

 from below upward, their septa directed obliquely outward and down- 

 ward, each producing a branch from its upper inner angle, which is 

 simple or one or more times branched, the branchlets Bubhyaline. 

 Spores about •"><> x :5 ,x. Perithelia 120-1 10 X 28-35 /x, its appendage 

 35 X 12 /i. Receptacle S.">-100 X 80-35 ft. Primary appendage about 

 85 ft, with branchlets about 120 p. Total length to tip of perithecium 

 225-260 ft. 



On Brachyderua antennahu Sharp, in Dr. Sharp's Coll. Peru. 



