483] MELIOLA IN PORTO RICO — STEVENS 15 



tate hyphopodia 24 x 14/x, opposite or alternate, head cell angular or 

 often distinctly lobed, stalk cell lO^u, long. Mycelial and perithecial 

 setae none. Perithecia abundant in older portions of the colony, ITO/i, in 

 diam., slightly rough. Asci evanescent, short, thick, 2-4 spored. Spores^. 

 52 X 20^1, strongly constricted, ends obtuse. 



6. Meliola irregularis sp. nov. 



Colonies amphigenous, irregular, 1-3 mm. in diam., black. My- 

 celium forming a very close network of threads which branch irregu- 

 larly, Ip. in diameter. Hyphae often so close as to lie in contact form- 

 ing a mat. 



Capitate hyphopodia alternate or irregular, crowded, head cell pyri- 

 form, somewhat irregular, 17 x 10/x, the basal cell 3-7/x long, Mucronate- 

 hyphopodia alternate or opposite, bottle-shaped, narrow, 20jti long. My- 

 celial setae none. Perithecial setae none. 



Perithecia 200/a, rough with conic protuberances about 17/a high, 

 Asci 2-spored, soon evanescent; ascospores 4-septate, brown, constricted^, 

 obtuse, 41 X 14/A, often irregular in shape, one end pointed, one or more 

 cells larger than the others, or with septa set obliquely, occasionally with 

 an aberrant number of septa. 

 On Hygrophila brosiliensis, (Spreng.) Lind. Fig. 6. 



Eio Piedras, Aug. 11, '15, 9283 (type). 



This species in character of perithecium resembles M. glabra but 

 in spores and mycelium it is quite different. 



7. Meliola solani sp. nov. 



Colonies amphigenous, irregularly circular, 2-4 mm. in diam. My- 

 celium black, forming a close network, 7/* in diameter, branches 

 irregular. 



Capitate hypophodia small, mostly opposite, not crowded, 2 per 

 cell, cells about 17 fx long, head cell pyriform or globular, 10 x S/x, 

 the basal cell short. Mucronate hyphopodia few, alternate or oppo- 

 site, bottle-shaped, 14 x 7/x. Mycelial setae none. Perithecial setae few 

 or wanting, straight or slightly curved, 125 x 7fx, tip obtuse, dark. 



Perithecia 150-180/x,. Asci soon evanescent; ascospores 4-septatey 

 brown, very slightly constricted, obtuse, 37 x 14/x. 



On Solanum jamaicense Mill. Fig. 7. 



Monte de Oro, Dec. 3, '13, 5750 (type). 



The chief, distinguishing character is the small, nearly globular 

 capitate hyphopodia which are usually opposite. 



