OF ARTS AND SCIENCES. 17U 



CH^iTOMYCES Pixophili, nov. sp. 



Perithecium suffused vvitli purplish, more deeply at the base and 

 along its inuer half, long, slender ; the inner margin nearly straight, 

 the outer curving inward distally to the prominent somewhat angularly 

 inflated tip ; the stalk cells bent upward at the base, so that the axis 

 of the perithecium is nearly parallel to that of the receptacle, the 

 lower short and narrow, the upper becoming distally as broad as the 

 perithecium, the basal cells of which are not distinguished from it and 

 sire similarly suffused with purplish. Receptacle bristle-like, composi d 

 of about fourteen superposed subcylindrical or somewhat flattened 

 ceils, almost or quite opaque and indistinguishable, the series usually 

 bent backwards at the base and, more abruptly, at the apex. Of these 

 cells the three (rarely four) basal oues bear no appendages ; above 

 these one to three cells may bear fertile appendages, and are in turn 

 succeeded by one, rarely two cells, from which arc produced single 

 perithecia ; above these follow two to four cells without append. 

 while the series is completed by five or six distal cells bearing short 

 stout sparingly branched tapering hyaline sterile appendages. Fer- 

 tile appendages hyaline, sparingly branched, the antheridia irregu- 

 larly placed. Spores very slender and sharply pointed 37 X 1—1.5 p.. 

 Perithecia (including basal cells) 90-130 X 22 M ; stalk cells about 

 30 fx long by 18.0-22 fi distally, 11 n wide at base. Total length of 

 receptacle 150-165 X 7.5-8 /x. Appendages (longer) about 50-G0 tt. 



On abdomen of Pinophilus talipes Er., Southern States. 



RHADINOMYCES, nov. gen. 



Receptacle consisting of two superposed cells, from the upper of 

 which arise one to several stalked perithecia and an antheridial appen- 

 dage. The appendage consisting of a series of several superposed 

 cells, each of which may bear from its distal end one or more short 

 fertile branches producing flask-shaped antheridia more or less irregu- 

 larly : the distal cell of the series terminated by one or more long 

 sterile branches. Perithecia subcorneal, borne on a stalk made up ol 

 a single basal cell surmounted by several smaller cells. Spore- as in 

 other genera. 



Two well marked species corresponding exactly in essential charac- 

 ters seem to distinguish this genus from the allied Cdrethromyces. In 

 both the appendage consists of three superposed cells, though this 

 number may prove variable. The fertile branches consist of two or 

 three small cells bearing the antheridia more or less irregularly, and 



