CHITONOMYCES AND RICKIA. 29 



Antlieridia 7 X 3.5 fx. Total length to tip of perithecium GO-GO X 

 36-43 M- 



On Europs sp., No. 2338, Kamerun, ^V. Africa. 



In general appearance this species bears some resemblance to R. 

 elliptica, from which it is readily distinguished by its numerous typical 

 antheridia, and the absence of any terminal projection from the tip 

 of the perithecium. 



Rickia gracilis nov. sp. 



Hyaline, elongate, of nearly the same width throughout. Recepta- 

 cle triseriate, the basal cell usually abruptly bent, brown next the foot 

 but otherwise hyaline, intruded so as to separate completely the basal 

 cells of the marginal series: anterior series consisting of about twenty 

 cells very obliquely related and several times longer than broad; the 

 uppermost, only, lying beside the base of the perithecium; all, includ- 

 ing the lowest, cutting off two, to less often four, cells, which bear 

 appendages or antheridia: posterior series similar to the anterior, and 

 consisting of about twenty cells which extend hardly higher than those 

 of the anterior series, and bear terminally the rather long slender base 

 of the primary appendage: median series consisting of about eighteen 

 cells of regular form and diameter, from four to six times as long as 

 broad, except the uppermost; the three to four distal ones succes- 

 sively smaller and rounded, the last three lying beside the lower fourth 

 of the perithecium. Antheridia numerous, hyaline, the venter rather 

 stout, the neck slightly curved and moderately well distinguished. 

 Appendages normal, slender, relatively long, hardly tapering. Peri- 

 thecia yellowish with a tinge of purplish, erect symmetrical, except 

 the base, which turns outward slightly, three fourths free, or slightly 

 more, externally; the margins slightly convex, tapering symmetri- 

 cally to the small truncate apex; the tip somewhat paler, and not 

 distinguished. Spores about 35 X 3.6 jjl. Perithecia 75 X 29 fx. 

 Antheridia 14 X 4 m- Appendages 10-20 X 3 m- Total length to 

 tip of perithecium 450 X 34yu; the receptacle for the most part X 26 m- 



On Stenotarsus Guineensis Gerst., No. 2363b, Kamerun. 



A well defined species, quite unlike the others occurring on the same 

 host; and distinguished by its long, slender, uniform receptacle, and 

 laterally placed, erect, symmetrical perithecium. Six specimens have 

 been examined, onlv one of which is fully matured. 



