CHITONOMYCES AND RICKIA. 37 



broad, erect tip; the apex bilobed, the large lobes unequal, somewhat 

 asymmetrically and laterally placed; a minute subtending stalk-cell 

 distinguished. Spores copious, about 2S X 2.5 jj.. Perithecium 

 77 X 27 iJL. Total length to tip of perithecium about 140 X 50 /x. 



On legs of Coproponis latus Motsch, No. 2380, Mindanao, P. I. 



This species is most nearly related to the two species occurring on 

 the same host {R. introvcrsa and R. nigrofimhrinta), but is at once 

 distinguished by its almost wholly included perithecium, as well as 

 by other differences. Two specimens, only, one of them fully mature, 

 have been examined. No antheridia are recognizable in either 

 individual. 



Rickia circumdata nov. sp. 



Long-spathulate, nearly symmetrical, quite hyaline or more or less 

 deeply and completely suffused with lilackish brown, darkest at the 

 base, and hyaline above; sometimes opaque below, and becoming 

 gradually hyaline distally. Receptacle triseriate, subdeterminate, 

 (in one instance biseriate), the basal cell always quite hyaline, con- 

 trasting: anterior series consisting of from about twenty to twenty-five 

 cells, the lowest and uppermost smaller, the rest subequal when suf- 

 fused, and much flattened, with straight walls, but tending to be 

 piriform when hyaline; each cell cutting off two to three flattened 

 triangular superposed cells, or the lower only one such cell, all of which 

 bear appendages or antheridia: posterior series similar to the anterior 

 and symmetrical with it, ending in the small lower cell of the base of 

 the primary appendage, from wdiich the free small upper narrow cell 

 projects outward, parallel to the other appendages: median series 

 consisting of about the same number of cells, which decrease in size 

 from the mid-region upward and downward; those below the peri- 

 thecium squarish or subrectangular; suffused, or more rounded in 

 hyaline individuals; those in contact with the perithecium becoming 

 much smaller upward; the lowest cell hardly intruded between the 

 second pair of marginal cells. Perithecium slightly lateral in position, 

 erect or slightly tilted, subfusiform, subsymmetrical, broadest just 

 below the middle; l^ecoming deeply suft'used with brown, except in 

 hyaline individuals; the tip distally compressed, not distinguished, 

 usually turned sidewise so as to be free, the anterior and posterior 

 series sometimes almost or quite meeting liehind it; distally hyaline, 

 compressed; the bluntly rounded or truncate apex always quite free. 

 Appendages hyaline, subc;)lindrical, of the ordinary type, slightly 



