24 ILLINOIS BIOLOGICAL MONOGRAPHS [492 



about 17)11 long. Mycelial setae none. Perithecial setae few, about 

 3-10, arising from the base of the perithecium, straight or slightly curved. 

 Tip obtuse, 30-85 x 7/a, dark. Perithecia 135/a, rough with rounded 

 protuberances. Asci soon evanescent; ascospores 4-septate, brown, con- 

 stricted, obtuse, 35-38 xll/A. 

 On Miconia sintenisii Cogn. Fig. 19. 



El Alto de la Bandera, July 15, '15, 8639 (type). 



This Meliola is striking on account of its sparse mycelium with 

 very distant hyphopodia. 



22. Meliola tenuissima sp. nov. 



Fungus amphigenous, more abundant above, colonies extremely 

 thin, invisible to the naked eye, consisting of a loose network of wavy 

 threads, 7fi in diameter. There is usually a distinct bend at each 

 septum. 



Capitate hyphopodia small, alternate, distant, head cell globular, 

 ovoid or pyriform, not angular, IO/a in diam,, the basal cell about Six long. 

 Mucronate hyphopodia few, alternate or opposite, bottle-shaped, 20/* 

 long. Mycelial setae none. Perithecial setae few, about 3-4, straight or 

 bent, or even uncinate at tip, about lOO/t long, 6fi thick. Tip obtuse, 

 sometimes swollen. 



Perithecia 170/a, slightly rough. Asci soon evanescent; ascospores 

 4-septate, brown, not constricted, obtuse, 34-37 x 14-15/x. 

 On Gouania lupuloides (L.) Urb. 



Yauco, Oct. 3, 13, 3142 (type). Villa Alba, Jan. 3, '13, 96. 



This species is quite unique in the extreme sparseness of the my- 

 celium. 



23. Meliola parathesicola sp. nov. 



Colonies hypophyllous, irregularly circular, punctiform, 1-2 mm. in 

 diam. Mycelium brown, forming a very close mat, threads 8/x in diam- 

 eter, branching irregularly. 



Capitate hyphopodia alternate or irregular, very crowded, usually 

 in contact with adjacent hyphopodia, head cell ovoid to nearly globular 

 or slightly angular, 20 x 14/x, the basal cell S-lfx long. Mucronate 

 hyphopodia few and scattered, alternate or opposite, bottle-shaped, 20 x 

 7fi. Mycelial setae none. Perithecial setae few, 1-5, arising basally, 

 straight, about 90 x 7/li, tip obtuse, dark throughout. 



Perithecia 135-150/*, rough, with rather large conic projections. 

 Asci soon evanescent, ascospores 4-septate, brown, cylindrical to ellip- 

 tical, slightly constricted, obtuse, 48 x 20/*. 



