THAXTER. — NEW LABOULBENIACEAE. 309 



broad necks at first closely approximated or coherent, divergent only- 

 after full maturity. Perithecium 50-55 x 15-20 fi. Longer sterile 

 appendages 75 X 6^. Antheridial branch, including antheridia, 18 p. 

 Total length, longer 475 x 10 /j, shorter aud stouter 125 X 36 ,u. Sec- 

 ondary perithecia may develop from cells of either axis if the primary 

 perithecium does not develop or is destroyed. 



On the head, antennae and under surface of Leptochirus sp., Java ; 

 Rouyer, No. 1403. 



Herpomyces Anaplectae nov. sp. 



Male individual consisting of four superposed cells, the two or three 

 upper ones becoming variably branched, and bearing a variable number 

 of antheridia on the branchlets ; the subbasal cell apparently in some cases 

 producing one or two small secondary receptacles, each of which bears an 

 irregular tuft of antheridia. Total length, including antheridia. 35-50 p. 

 Antheridia 24 X 2 /.t. 



Female individual hyaline. Primary receptacle mostly 4-celled, the 

 distal cell at first long, conical, mucrouate, becoming more or less col- 

 lapsed and irregular at maturity ; the subbasal giving rise to a branch 

 from which are formed a pair of small secondary receptacles, each 

 producing a single perithecium ; the two symmetrically placed, and 

 symmetrically curved away from the axis of the primary receptacle. 

 Perithecium long, slender, tapering from below the middle to its attenu- 

 ated apex; the tranverse boundaries of the wall-cells often indicated in 

 the middle region by more or less distinct elevations, the apex un- 

 modified, blunt. Primary receptacle 25 X 3 fi. Secondary receptacle 

 16 X 13 ,u. Perithecium 80-90 X 16^. Spores about 18 X 2 /n. 



On the antennae of a species of Anaplecta allied to A. Dorhniana 

 Sauss.-Zehntn., collected under stones along the margin of a stream 

 near Caracas, Venezuela, by Dr. A. F. Blakeslee. 



Herpomyces Nyctoborae nov. sp. 



Male individual. Axis consisting of five or six cells, the basal some- 

 what elongate, the rest short and somewhat rounded, the terminal one 

 abruptly apiculate ; the distal cells producing branches which in turn 

 branch three to four times, the ultimate branchlets bearing the antheridia 

 terminallv in groups, the whole forming a dense tuft. Axis about 

 54 X 10 /i, the total length to the tips of the antheridia about 100 ft. 

 Antheridia 20 X 3 p. 



Female individual. Colorless, the primary receptacle consisting of four 



