THAXTER. — LABOULBENIACE^E. 97 



COMPSOMTCES VERTICILLATUS. 



Cantharomyces verticillatus Thaxter. 



This species was found not uncommonly on Sunius longiusculus at 

 Kittery Point, Me., during the past summer, and an examination of 

 new material shows conclusively that it is generically distinct from 

 Cantharomyces as emended in a previous paper. Its antheridia are 

 not compound as in that genus, but simple, more or less flask-shaped 

 and produced in a fashion more closely resembling that of certain 

 species of Laboulbenia. The trichogyne is remarkably developed, 

 copiously and regularly several times branched, the free receptive 

 tips being coiled in close and regular spirals. 



MOSCHOMYCES, nov. gen. 



Receptacle composed of a sucker-like compacted mass of parenchy- 

 matous cells penetrating the softer chitin of the host and giving rise 

 above to numerous free cells from the distal ends of which are pro- 

 duced solitary stalked perithecia and appendages. Perithecium very 

 large, subconical, pointed, the apex symmetrical, borne on two simple 

 superposed stalk cells followed by three small basal cells ; the basal 

 stalk cell bearing from its distal end a single simple sterile appendage. 

 Appendages septate, sparingly branched or simple, the fertile ones 

 stouter, bearing one-celled antheridia laterally. Asci subcylindrical, 

 eight-spored, arising in great numbers and in many rows from a single 

 ascogenic cell or centre. Spores minute, acicular, once septate. 



MOSCHOMYCES INSIGNIS, nOV. sp. 



Perithecia pale straw-colored, becoming tinged with brown, the 

 lower portion slightly inflated and abruptly contracted at the base, the 

 distal portion subconical, sometimes slightly bent to one side, the apex 

 narrow, truncate, symmetrical, the surface marked by two series of 

 ridges extending around the perithecium, each series composed of four 

 distinct and prominent ridges placed somewhat irregularly and in- 

 dicating the lines of separation between the middle and the upper 

 and lower series of cells which form the walls of the main body of the 

 perithecium : basal cells of the perithecium small, three in number, 

 not distinguished from it but somewhat abruptly distinguished from 

 the distal stalk cell, which is long, subcylindrical, sometimes inflated 

 and curved ; the basal stalk cell usually shorter and smaller, bearing 

 distally a single slender simple rather closely septate tapering append- 

 voi,. xxix. (n s xxi ) 7 



