424 PROCEEDINGS OF THE AMERICAN ACADEMY. 



Dichomyces Madagascarensis nov. sp. 



Basal cell deeply suffused with brown. Lower tier very long and 

 slender, opaque except for a faint median translucent line : middle tier 

 with three to five of the median cells distinguishable, red-brown ; the rest 

 indistinguishable in the opaque margins which extend upward to form 

 long fork-like outgrowths on either side that may reach nearly to the tips 

 of the perithecia ; antheridia not large, brownish : upper tier consisting 

 of about twenty-one to twenty-three cells, tinged with reddish brown, 

 relatively large, deeply concave distally ; the median cells like those of 

 the middle tier, marked by fine faint transverse stria3, bearing normally 

 two perithecia which are long and slender, often slightly curved and 

 divergent, pale reddish brown, the tip narrow, the posterior lip-cells form- 

 ing two small, slightly divergent projections (like those of D. farciferus 

 but relatively smaller) curved at the tips, the anterior lips meeting in a 

 point between them. Appendages hyaline, sometimes equalling the peri- 

 thecia in length. Spores very slender and abundant, 35 X 2 /a. Peri- 

 thecia 125-135 X 25 /;i. Total length to tip of perithecium 320-350 /t- 

 Receptacle 225-240 X 105 /x. 



On Philonthus Sikorae Fauv., Paris Museum, No. 179, Tananarive, 

 Madagascar. On abdomen. 



'O" 



Dichomyces vulgatus nov. sp. 



Receptacle short and stout, the basal cell small squarish hyaline ; the 

 lower tier externally opaque, except the whole or the middle of the median 

 cell or only its upper end, the opaque margin divergent extending above 

 the base of the second tier, the blackened margin of which is continuous 

 with that of the first tier ; sometimes, like it, divergent, more often 

 abruptly less divergent or even erect, extending upward to form on either 

 side free fork-like, usually opaque, sometimes hyaline projections as in Z>. 

 farciferus which may extend to a point somewhat above the base of the 

 perithecia or may be almost obsolete; the three middle cells of the middle 

 tier usually more or less conspicuously punctate below, with transversely 

 elongated blackish brown spots : the antheridia normally placed, unusu- 

 ally long and large, pointed, with two or three short, inconspicuous normal 

 appendages placed one behind, the rest external to it. The upper tier 

 distally concave, consisting of from fifteen to twenty-one cells, pi'oducing 

 normally four perithecia associated as usual with short stout typical 

 appendages. Perithecia usually erect, straight, rather stout, pale reddish 



