499] MELIOLA IN PORTO RICO — STEVENS 31 



about 17-50/t apart, head cell globular to pyriform, 14/a in diam., the 

 basal cell short. Mucronate hyphopodia few and scattered, alternate 

 or opposite, bottle-shaped, about 20 x 7^. Mycelial setae none. Peri- 

 thecial setae few, about 1-5, somewhat crooked, 70-85 x 6/^, yellow, 

 translucent. Tip obtuse. 



Perithecia irregularly globular, 85-140// in diam., very rough, with 

 conic protuberances, translucent. Asci soon evanescent; ascospores 4- 

 septate, brown, constricted, obtuse, 34-41 x 10-14/x. 



On Triumfetta semitriloha Jacq. 



Utuado, Nov. 8, '15, 4421 (type). Indiera Fria, Oct. 8, '13, 3482. 

 On Hibiscus tiliaceus L. 



Arecibo-Lares Road, June 21, '15, 7249. Maricao, July 20, '15, 

 8962. Dos Bocas, below Utuado, July 8, '15, 8073. 



The specimens on Hibiscus while they show the same characteris- 

 tic perithecia and hyphopodia, are somewhat differentiated as to the 

 habit of the mycelium, which is less crooked and produces larger colo- 

 nies than on Triumfetta. Perithecial setae are also decidedly more 

 variable in number, sometimes entirely lacking, at other times numerous. 



37. Meliola maricaensis sp. nov. 



Colonies hypophyllous, irregular, sparse, 5-15 mm. in diam., conflu- 

 ent. Mycelium forming a very loose network of black threads 7/^ in 

 diameter, branching irregular. 



Capitate hyphopodia alternate or irregular, distant,, about 30-70/j, 

 apart, head cell ovoid to pyriform and regular, or subpyriform, angular 

 and quite irregular, 17 x 10/x, the basal cell 5-7/x long. Mucronate 

 hyphopodia alternate or opposite, bottle-shaped, 16-18 x l/x. MyceliaJ 

 setae none. Perithecial setae few, about 3-10, straight or slightly curved 

 at tip, 100-150 X l/x, dark. Tip obtuse. 



Perithecia 170|U., rough, with rounded protuberances. Asci soon 

 evanescent; ascospores 4-septate, brown, slightly constricted, obtuse, 

 48 X 20//. 



On Ilex nitida (Vahl) Maxim. 



Maricao, Oct. 20, '13, 3679 (type), 3607, April 4, '13, 824. 



Close to M. cupaniae but separable from it by the shape of the capi- 

 tate hyphopodia. 



