28 THAXTER. 



usually broken and proliferous, rather short, subcyelindrical. Perithe- 

 cium slightly tilted inward, its body subsymmetrical, long elliptical, 

 the outer margin free, the broad short tip slightly distinguished, 

 the apex broad, blunt, s;vnTinietrically rounded. Spores about 

 18-20 X 2.5 M- Perithecia 26-36 X 16-18 m- Antheridia 10 X 3.5 ix. 

 Total length to tip of perithecium 50-90 X 20-26 ix, smaller speci- 

 mens 30 X 15 /I. 



On Euxestus Parlci WoU., Nos. 2419, 2422 and 2552, Manila, 

 Philippines. 



A species somewhat similar to R. Europsis, but clearly distinguished 

 by its large curved antheridia and nearly free peritheciimi, as well as 

 by other points of difference. On the smaller hosts it is less well 

 developed, smaller, less stout, with fewer cells. 



Rickia Europsis nov. sp. 



Hyaline, short and stout, broadly elliptical but asymmetrical, the 

 posterior margin being more or less straight. Basal cell small, short, 

 abruptly distinguished from the body, its pointed distal end symme- 

 trically intruded between the nearly equal and similar basal cells of 

 the two marginal series. Receptacle triseriate: the anterior series 

 more distinctly and evenly convex; consisting of nine, less frequently 

 ten cells, broader than long except the distal ones, abruptly successively 

 larger, or the three lower larger; each, except the terminal, and some- 

 times the subterminal, separating a cell distally and externally, some- 

 times two, which bear antheridia or appendages of the usual type: 

 posterior series consisting of six or seven cells, the lower four or 

 five large, subequal, forming a straight erect series; all broader than 

 long and separating distally and externally one, or often two, small 

 cells which bear antheridia or appendages; the series ending in the 

 two relatively short and broad cells which form the base of the 

 primary appendage: the median series consisting of normally seven 

 successively smaller cells in contact w4th the posterior margin of 

 the perithecium, and extending from just below its base somewhat 

 beyond the base of the primary appendage to its tip. Appendages 

 rather short and stout. Antheridia typical, short and stout, the 

 neck rather broad and not very abruptly distinguished. Body of 

 the perithecium symmetrical, long-elliptical, hardly more than its 

 apex free; the latter blunt and bent abruptly sidewise. Spores about 

 24 X 3 M- Perithecia 40-54 X 16-18 ix. Appendages 6-9 X 4 /x. 



