46 THAXTER. 



tween the somewhat larger and longer basal cells of the two marginal 

 series: anterior series extending slightly higher than the two others, 

 consisting of usually ten successively smaller cells, or the four lower 

 subequal, the lowest smaller than that of the posterior series, all the 

 rest cutting off one, sometimes two superposed small cells distallj^ and 

 externally, which bear either appendages or antheridia: posterior 

 series similar to the anterior, consisting usually of nine cells sur- 

 mounted by the small base of the primary appendage, the upper cell 

 of which is free: median series consisting normally of eight cells, the 

 lowest lying wholly above the second pair of marginal cells, the second 

 somewhat larger. Appendages very small, rounded, or but slightly 

 longer than broad, antheridia normal, hyaline, curved outward, the 

 necks rather stout and not abruptly distinguished. Perithecia pale 

 straw-colored, nearly symmetrical, straight, erect, somewhat less than 

 half free on both sides; the tip stout, abruptly distinguished, tapering 

 to the minute papillate apex; the base, subtended by a well defined 

 stalk-cell. Perithecia 60-80 X 20-24 (jl. Appendages 3.5-5.5 X 

 3.5 iJL. Antheridia 12 X 3.5 fx. Total length to tip of perithecium 

 135-155 X 40-45 fj.. 



On the inferior thorax of Circopes Philippincnsis Grouv., No. 2274, 

 Kamerun. 



Somewhat similar in general appearance to R. paUescens but dis- 

 tinguished by the different relation of its appendiculate cells, the form 

 color and relations of it perithecia, as well as in other respects. 



Rickia Episcaphulae nov. sp. 



Hyaline, asymmetrical, subsigmoid. Receptacle triseriate; basal 

 cell large, longer than the cells next above it, betw^een which it is but 

 slightly intruded: anterior series consisting of about thirteen cells of 

 irregular size and outline; the lower longer; the middle broader and 

 shorter; the six or seven distal cells which lie beside the perithecium, 

 becoming smaller, irregular and broader in proportion to their length ; 

 the lower three usually without appendages; the rest cutting off single 

 relatively large cells, wliich bear antheridia or appendages: posterior 

 series similar, consisting of nine or ten cells; the basal longer than that 

 of the anterior, and separating an appendiculate cell, as do all the 

 others, except the second, third and last; which, with the correspond- 

 ing cell of the median series, subtends the base of the primary append- 

 age: median series consisting of nine or ten cells, similar in general to 



