652 THAXTER. 



Rickia flagellifera nov. sp. 



Hyaline. Body of the receptacle subtriangular, short and stout, 

 triseriate; the basal cell longer than broad, its pointed distal end 

 somewhat intruded between the subequal basal cells of the anterior 

 and posterior series: the anterior series consisting of four successively 

 larger cells, all but the basal one cutting off an appendiculate cell 

 distally and externally, the uppermost in oblique contact with the 

 base of the perithecium: the middle series consisting of four or five 

 successively smaller flattened cells, and extending from the basal cells 

 of the marginal series above the base of the perithecium, to the inner 

 margin of which its two or three upper cells are united : posterior series 

 consisting of five superposed cells, the third and fourth each cutting 

 off two appendiculate cells, the others one; the four lower subequal, 

 the uppermost small, displaced somewhat toward the perithecium, 

 and forming the base of an elongate, slender, flagellate continuation 

 of the posterior series, which consists of a single row of superposed 

 elongate cells, some of them cutting off small appendiculate cells 

 distally ; the series ending in the primary appendage and its two basal 

 cells. Perithecium relatively rather large and stout, about three 

 quarters free, slightly bent away from the flagellum, the tip hardly 

 distinguished; the apex broad and truncate, or broadly rounded. 

 Spores about 20 X 2 /x. Perithecium 30-36 X 12-14 /x. Receptacle 

 to base of flagellum 35-55 X 18-20 ^t. Total length to tip of peri- 

 thecium 55-80 fi. Longest flagellum 225 X 5 ^i. 



On Leptaulax dentatus F. No. 2393, Mindanao, Philippines. 



A species quite unlike any other known form, and easily distin- 

 guished from other flagellate types by its triseriate receptacle. 



Rickia pinnata nov. sp. 



Receptacle becoming somewhat broader distally, its outline more 

 or less even; normally simple; or sometimes producing adventitious 

 axes, usually when injured; the primary axis triseriate above the stout 

 distally rounded basal cell, the secondary axes biseriate: hyaline, except 

 that the median series is tinged with brown at the base. The cells of 

 the anterior and posterior series similar, very numerous, mostly some- 

 what longer than broad: the posterior series extending to the perithe- 

 cium, with the base of which it is in oblique contact; three or four of 



