100 PROCEEDINGS OP THE AMERICAN ACADEMY. 



Cantharomtces pusilltjs, dov. sp. 



Perithecium becoming reddish brown, inflated just above the base, 

 the distal portion conical tapering to a blunt symmetrical apex, borne 

 on a rather short narrow stalk cell bent towards the appendage and 

 separated from the perithecium by three small subtriangular basal 

 cells. Receptacle consisting of a very small basal and a much larger 

 rouuded sub-basal cell, more or less suffused with brown, which gives 

 rise to the stalk cell of the perithecium and the appendage. Anthe- 

 ridial appendage consisting of a large squarish basal cell followed by 

 the antheridium proper, which is primarily a large squarish cell, its 

 outer half or more becoming divided by anastomosing septa into 

 numerous small cells, the inner portion also showing a division into 

 two or three larger cells ; the whole bearing terminally a series of 

 usually three superposed flattened cells strongly constricted at the 

 septa and giving rise distally to from one to three simple cylindrical 

 nearly hyaline sparingly septate branches, usually exceeding the peri- 

 thecium in length. Spores 18 X 2 /x. Perithecia 22-26 X 30-55 ft. 

 Total length to tip of perithecia 80-85 ft, to tip of appendages 90-120 ft. 



On Trogophlceus sp. York, Maine ; Waverly, Mass. 



This species is perhaps the smallest of the known forms of Laboul- 

 beniaceas, and is somewhat difficult to discover and remove from the 

 legs or elytra of its host, where, however, it is not rarely found. 

 Owing to its minute size the detailed structure of the antheridium was 

 not plainly made out, neither was any discharge of antherozoids noticed. 

 It corresponds so closely, however, to the structure characteristic of 

 the genus as emended, that there can be little doubt of the correctness 

 of its generic reference. 



CAMPTOMYCES, nov. gen. 



Receptacle consisting of two superposed cells, the upper bearing 

 the short-stalked perithecium laterally and the antheridial appendage 

 terminally. Perithecium narrow, with coarse-lipped asymmetrical 

 apex. Appendage consisting of a single large basal cell bearing the 

 antheridium terminally. Antheridium multicellular, subcorneal, with 

 a prominent terminal pore for the discharge of the numerous roundish 

 antherozoids. Trichogyne developed as a small vesicular prominence 

 above a permanent ear-like appendage which arises laterally from the 

 young perithecium. Ascogenic cells two in number. 



