12 



Meliola Panic! sp. nov. 



Forming black, small, i-3mm. frequently confluent spots: 

 mycelium threads 6-8;" thick, sparingly branched, septate at in- 

 terv^als of 10-16": capitate hyphopodia usually alternate and 

 strongly divaricate, about i6-20-« long, basal cell 6-8// long, head 

 cell broader than long, irregular, usually three or four lobed: 

 mucronate hyphopodia abundant, opposite in pairs at right 

 angles to the thread, bottle-shaped, light fuligenous, about I2/" 

 long: setae numerous, straight, tips undivided, obtuse, obscurely 

 septate, opaque, 400600/^ long, base 8-10" thick: perithecia scat- 

 tered, black, slightly or not at all collapsing, 150-200", non 

 ostiolate: asci oval, 3-4 spored, soon evanescent: ascospores 

 compressed, 4 septate, slightly constricted, ends rounded, about 

 40xi2x8/i. 



This can be distinguished from forms of what have been 

 called M. amphitricha Fr. by its irregularly lobed hyphopodia, 

 and from M. tejiuis B. & C. which it closely resembles in gen- 

 eral appearance and in the lobed hyphopodia, by the uniformly 

 undivided setae and somewhat smaller spores. 



On Panicu')n latifolmm^ calcareous hills east of Santurce, 

 altitude 25 feet. January. No. 4343. 



Meliola Pij)eris sp. nov. 



Forming dense, black, velvety, easily separable patches 

 5-iomm. in diameter: mycelial threads densely felted, straight 

 or flexed, 6-8^ in diameter, septate at intervals of 12-20": capi- 

 tate hyphopodia alternate or opposite, small, short, divaricate, 

 about 1 2/^ long, basal cell short, usually about 4", head cell glob- 

 ular, about 8-": mucronate hyphopodia not seen: setae abundant, 

 cylindric, not tapering, opaque throughout, occasionally ob- 

 scurely septate, 150-200x6-8", 1-3 times dichotomously branched, 

 primary branches divaricate, about 20-5," long, ultimate branches 

 short, acute, usually strict: perithecia abundant, not ostiolate, 

 little or not collapsing, about 150-", of firm brittle texture, wall 

 cells small, 4-6.": asci oval, soon evanescent, 2 (or 4?) spored: 



