509] MELIOLA IN PORTO RICO — STEVENS 41 



On Myrsinaceae indet, 



Maricao, July 19, '15, 8905, Oct. 20, '13, 3681. 



This species is closely related to M. amphitricha but distinguished 

 from it by the shape of the capitate hyphopodia. 



52. Meliola pilocarpi sp. nov. 



Colonies hypophyllous, irregular, 4-15 mm. in diam., black. My- 

 celium forming a loose network of threads, branches opposite or alter- 

 nate, 8/t in diameter. 



Capitate hyphopodia alternate, rarely opposite, not crowded, one 

 per cell, cells, 20-30)u, long, head cell cylindrical or slightly thickened, 

 20 X lO/Lt, the basal cell short. Mucronate hyphopodia mostly opposite, 

 bottle-shaped, the neck often curved, 20 x 7/x. Perithecial setae none. 

 Mycelial setae few, scattered, straight, black, 1100/i, long, 10/* thick at 

 base, tip acute. 



Perithecia 190/a in diam. Asci soon evanescent; ascospores 4-sep- 

 tate, brown, strongly constricted, obtuse, 51-54 x 17-20/t. 

 On Pilocarpus racemosus Vahl. 



Mayaguez, June 13, '15, 7080 (type). 



53. Meliola stenotaphri sp. nov. 



Mycelium crooked or in zig-zag bends about equal in number to the 

 hyphopodia. 



Capitate hyphopodia alternate, or for considerable distances uni- 

 lateral, with distinct stalk of much smaller diameter than the head. Stalk 

 cell 7fi wide, 5-9/a long; head cell spherical or oval, about 20 x 14/li. 

 Mucronate hyphopodia scarce, opposite or alternate, ampulliform, 

 7 X 14yu,. Mycelial setae dark, opaque, about 275/* long, 7/a thick at base, 

 simple and acute or very rarely bifid. Perithecial setae none. 



Perithecia small, about lOO/i, surface rough with rounded protuber- 

 ances. Spores oblong, 4-septate, obtuse, slightly constricted, 30-44 x 

 10-14/*. 

 On Stenotaphrum secundatum (Walt.) Ktze. Fig. 38. 



Manati, Nov. 5, '13, 4304 (type). Rio Tanama, near Arecibo, July 

 7, '15, 7940 July 7, '15, 7852. Dos Bocas, below Utuado, July 8, '15, 

 8023. Arecibo, K. 64.7, July 8, '15, 7810. 



The mycelium is distinctive, rather closely woven and with numer- 

 ous crooks or zig-zags. The long stalks and rounded heads of the capi- 

 tate hyphopodia are also sufficient to separate this from other forms. 



54. Meliola capsicola sp. nov. 

 Colonies amphigenous, foliicolous and caulicolous, circular, 1-3 mm. 



