26 PROCEEDINGS OP THE AMERICAN ACADEMY. 



Ceraiomyces Selinae nov. sp. 



Receptacle pale dirty brownish, becoming gradually somewhat broader 

 distally, the foot blackish brown, not clearly distinguished, the subbasal 

 cell longer than the basal. Stalk-cell of the perithecium slightly longer 

 than broad, the basal cells forming a hyaline neck bent above the stalk- 

 cell and not distinguished except in color from the body of the peri- 

 thecium, which is nearly straight, symmetrical, dull purplish brown, 

 tapering gradually to the slightly asymmetrical apex ; the tip hardly 

 distinguished by a slight external elevation. Stalk-cell of the appendage 

 more or less strongly curved, or recurved so that the appendage bends 

 downward ; the insertion-cell slightly broader than long, blackish purple 

 below, separated by a slightly oblique septum from the much larger cell 

 above it, from which four or five branches arise distally ; the branches 

 simple, or sparingly branched, hyaline or reddish brown, sterile or bear- 

 ing antheridia. Perithecia 125-150 X 30-35 fi, the stalk-cell 22-25 /i. 

 Receptacle 200-325 X 25-30 /x. Appendages 185-400 /x. Total length 

 to tip of perithecium 219-490/*. 



On the prothorax of Selina Westermanni Mostch., India Orient, (la- 

 belled "Tranquil"), Berlin Museum, No. 976. 



ECTEINOMYCES nov. gen. 



Receptacle consisting of a single series of superposed cells, becoming 

 variable in number as a result of intercalary division : bearing distally 

 a single perithecium of normal type and an antheridial appendage. The 

 appendage consisting of a series of superposed cells, several of which 

 above its basal or stalk-cell, bear simple antheridia, which are separated 

 distally by oblique septa on one or both sides, much as in the genus 

 Compsomyces. 



Ecteinomyces Trichopterophilus nov. sp. 



Wholly hyaline with the exception of the typically blackened foot. 

 Receptacle varying from a very long and slender to a comparatively 

 short and stout form, the number of superposed cells varying in number 

 from five to fifteen, or rarely more ; the cells often hardly larger dis- 

 tally ; the series as a whole often irregular, the successive cells irregu- 

 larly unequal in length. Appendage similar to the receptacle, consisting 

 of five or six superposed cells ; the basal cell united to the stalk-cell of 

 the perithecium ; the subbasal cell sterile ; two or three of the cells 

 above it bearing one to two autheridia each, which may be replaced by 

 sterile branches similar to those which always arise from the terminal 



