CHITONOMYCES AND RICKIA. 31 



A clearly defined species which varies somewhat in its general form 

 according as it is shorter, stouter and broadly triangular, or more 

 elongate. The long, stout, basally suffused, more or less symmetri- 

 cally divergent distal groups of appendages give it a characteristic 

 appearance. 



Rickia Scydmaeni nov. sp. 



Receptacle triseriate, straight, or bent just above the basal cell, 

 hyaline, subsymmetrical in outline; broad distally, and tapering 

 continuously and considerably to the sometimes rather abruptly 

 distinguished long basal cell, the round extremity of which is slightly 

 intruded between the two lower cells of the marginal series; which are 

 somewhat longer and unequal, and very obliquely separated from the 

 two cells next above: anterior series consisting of six or usually seven 

 cells; shorter, smaller and more rounded distally; all except the lowest 

 usually cutting oft' a relatively large cell, which bears an appendage, 

 or rarely an antheridium: posterior series similar to the anterior, 

 consisting of usually seven cells: median series consisting of five 

 successively smaller cells, the lowest lying above the second pair of 

 marginal cells between which it is intruded; all three series extending 

 upward to about the same level above the base of the perithecium, the 

 cells rather irregular in form and size. Base of the primary appendage 

 free, symmetrically adjusted to the two distal cells of the posterior 

 and median series; its basal cell large and broad, the distal partly 

 hyaline, or becoming nearly opaque and indistinguishable from the 

 blackened constricted region which subtends the short inflated hyaline 

 appendage; secondary appendages divergent, asymmetrically clavate, 

 the basal blackish brown suffusion involving the lower half nearly or 

 quite to the tip, the upper margin hyaline, at least distally. Antheri- 

 dia normal, scanty, large, stout, with short not abruptly differentiated 

 necks, as large, or nearly as large, as the appendages, similarly and 

 evenly suffused. Perithecium about four fifths free, thick-walled, 

 deeply suffused, but slightly asymmetrical, distally subconical; the 

 large tip rather clearly distinguished, slightly inflated and darker in 

 the middle, whence it tapers evenly to the small hyaline truncate apex. 

 Base subtended by a well defined stalk-cell. Spores about 30 X 3 ix. 

 Perithecia IS X 4 /x. Appendages 18-22 X 5.5 ii. Antheridia 18 X 

 4 M- Total length to tip of perithecium 150-100 X 35-38 ii. 



On the inferior surface of Scydmacnus bicolor, No. 1422, Kittery 

 Point, Maine. 



