26 THAXTER. 



appendiculate cell; the fifth smaller and bearing the long straight 

 narrow free, somewhat divergent base of the primary appendage, 

 which consists of two nearly equal cells: the middle series consisting 

 of four, or usually five, subequal cells, extending in contact with the 

 inner margin of the perithecium to the point where the base of its 

 conical free tip is faintly distinguished: the posterior series consisting 

 of three or four cells, the second cutting oflp one or two superposed 

 small cells bearing subulate antheridia; the third, or third and fourth, 

 extending up along the anterior margin of the perithecium to about 

 its middle. The antheridia and appendages more or less radiately 

 disposed; the latter all, with the exception of the primary, relatively 

 long, especially those from the basal cells, and all distinguished by a 

 relatively long constricted blackened base. Perithecia rather short 

 and stout, distally subconical; the tip hardly distinguished; the apex 

 broad, truncate, or bluntly rounded. Spore 22 X 2.5 n. Perithecia 

 28 X 11 ;u. Antheridia 6-7 m. Longest appendages 24 X 3.4 (x; 

 base of primary appendage 10-12 X 3 /x. Outgrowths from basal 

 cells 30-55 /x. Basal cell of receptacle 10-15 X o.o fx. Total length 

 to tip of perithecium 45-55 X 23-28 /x. 



On Celaenopsis sp., Xo. 2780, Kamerun. 



A species most nearly allied to R. Celaenopsis, distinguished by the 

 subradiate arrangement of its antheridia and appendages, the sessile 

 subulate character of the former, and the long blackened bases by 

 which the latter are distinguished. The attenuated buffer-out- 

 growths from the basal cells of the two outer series, though not always 

 present, are not known in any other species of the genus. 



Rickia Hypoaspitis nov. sp. 



Receptacle hyaline triseriate. Basal cell relatively large, not in- 

 truded distally. Receptacle triseriate; the anterior series consisting 

 of two, rarely three, superposed cells; the lower somewhat larger, 

 usually, but not always, cutting off an appendiculate cell distally and 

 externally; the uppermost cutting oflF a similar cell which bears a 

 sessile pointed compound antheridium, the neck of which bends up- 

 ward beside the base of the perithecium: the posterior series consist- 

 ing of four or five cells, one to several of which cut oflF appendiculate 

 cells distally and externally; the uppermost bearing the base of the 

 primary appendage which projects free, and is strongly divergent, 

 rather stout, its two cells nearly equal: the middle series consisting 



