15 



Guignardia promineiis sp. nov. 



Scattered over large areas, frequently involving the entire 

 leaf, which is at length slightly discolored: perithecia deeply 

 buried, prominently elevating both leaf surfaces, about 150200/^, 

 the wall obscurely parenchymatous and closely united with the 

 leaf tissue; ostiole obscurely perforate, often scarcely evident: 

 asci slightly fascicled, fertile portion broadly oval, 50-60x25", 

 with a narrow sterile base equalling the fertile portion, the wall 

 conspicuously thickened, a paraphysate: ascospores 8, inordinate, 

 oval, thick walled, hyaline, undivided, about 25x10^. 



On living leaves of Aegiphila Martinicensis^ calcareous 

 hills east of Santurce, altitude 10 feet. February. No. 4674. 



HYSTEKIALES. 



Lembosia Agaves sp. nov. 



Spots thickly scattered, blackened, slightly elevated, i-3mm. 

 in diameter: mycelium of slender, brown, anastamosing threads 

 extending beyond the elevated spots: ascomata scattered or 

 somewhat crowded, but not confluent, irregularly oval, ends 

 obtuse, straight, not flexed, rather firm and carbonaceous, 200- 

 500x80-100/", lips closely appressed, bordered by a scanty sub- 

 iculum of rigid, fuscous, anastamosing hairs 3-4^ in diameter: 

 asci broadly oval, thin walled, 30-40x^0-2 5/<: ascospores inordi- 

 nate, ovate, uniseptate, constricted, the larger cell globular, the 

 smaller narrowed to a point, at length light brown, 14-16x6-7/". 



On leaves of Agave sp., slopes west of Cabo Rojo, altitude 

 150 feet. January. No. 4429. 



MONILIALES. 



Cercospora Portoriceiisis sp. nov. 



Hypophyllous, widely effused over irregular areas, forming 

 ■a dark grayish-black coating, the leaf at length diocolored above 

 but without definite bordered spots: sporophores scattered or 

 loosely fascicled, light olivaceous, several times septate, often 



