242 THAXTER. 



the whole converging more or less conspicuously inward from the 

 oblique distal surface* of the basal cell. The antheridia short and 

 stout, almost sessile, with short necks strongly curved outward. 

 Receptacle and foot 30-35 /x. Appendage 20 /x. Antheridia 18 X 



7.5 At- 



Female individual tinged with pale brownish yellow. Receptacle 

 consisting of usually six cells, somewhat flattened and oblique, except 

 the longer irregularly triangular basal cell. Secondary appendage 

 usually single and arising from the third or fourth cell, usually some- 

 what divergent. Primary appendage similar to that of the male, less 

 conspicuously bent toward the perithecium, consisting of six or seven 

 cells, the subbasal slightly brownish and abruptly distinguished from 

 the much larger broader basal cell which bulges more or less conspicu- 

 ously below it externally. Peritheciimi short-stalked, subsigmoid; 

 its rather broad termination slightly bent upward, blunt, unmodified, 

 sometimes slightly oblique. Perithecia 45-48 X 14-15 jx. Recep- 

 tacle 38-44 X 12 /x. Secondary appendage, longest 65 /x: primary 

 28-35 /i. Total length to tip of perithecium 75-80 /x. 



On the elytra of a bluish black immaculate species of Heterophyllus, 

 Hayti, No. 2760 (Mann Coll). 



This species is closely allied to D. prozivius, but appears to differ 

 in the characters of both sexes to which reference is made under that 

 species. 



Dimeromyces proximus nov. sp. 



Male individual hyaline or faintly tinged with brownish yellow. 

 Receptacle erect consisting of four cells; the basal narrower and 

 somewhat longer; the rest subequal, slightly flattened and oblique. 

 The appendage usually four celled, the basal much larger, the subbasal 

 abruptly narrower and brownish, suberect and hardly reaching the 

 tip of the upper antheridium. The latter relatively long and slender, 

 one to three in number, the stalk-cell well defined, the venter slightly 

 inflated, the neck slightly curved outward. Receptacle 28 /x. Anther- 

 idia 28 X 6 iU. Appendage 20-24 fx. Total length to tip of antheridia 



58 m. 



Female individual faintly tinged with pale brownish yellow, erect, 

 compact. Receptacle consisting of six or seven cells somewhat 

 obliquely supeiposed and somewhat flattened; the basal subtriangu- 

 lar, short; the two above it, rarely a third, producing secondary 

 appendages which are appressed, bending upward against the peri- 



