292 



Mycologia 



Sydow the Porto Rican material falls in the genus Trabutia on 

 account of the subcuticular stroma. 



Material examined: 



On Guazuma ulmi folia Lam. Cornell University Explorations 

 of Porto Rico (Chardon), No. 895, Penuelas, Aug. 11, 1920 

 (type) ; id. id. (Chardon), No. 921, Penuelas, July 28, 1920. 



Trabutia conica sp. nov. 



Stromata epiphyllous, numerous, shining, black, approximately 

 circular, conical and protruding considerably above the surface of 

 the host, 1-2 mm. in diam., subcuticular (?), surrounded by a 

 slightly discolored zone 1 mm. across, the single ostiolum distinct 

 at the apex of the conical stroma; locule single, 300-700 [x in 

 diameter, at first bearing a thick layer of filiform, hyaline conidia, 

 3-4 x 1 fx, later developing the asci ; asci narrowly ellipsoidal, 8- 

 spored, 67-81 x 19-23 /x, the ascus wall indistinct, spores biseriate 

 to inordinate, globose, hyaline, continuous, 10 /x in diam.; para- 

 physes present (fig. 21). 



ceo. 



Fig. 4. Trabutia conica sp. nov. Cross section of a leaf of Drepanocarpus 

 lunatus showing a locule, the subcuticular stroma, asci and ascospores. (Out- 

 lined with a camera lucida ; X 125). 



Material examined: 



On Drepanocarpus lunatus (L. f.) G. Meyer. Cornell Univer- 

 sity Explorations of Porto Rico (Whetzel & Olive), No. 658, 

 Mayaguez, Mar. 26, 1916 (type) ; id. id. (Whetzel & Olive), No. 

 634, Martin Pena, Apr. 10, 1916. 



Phyllachora canafistulae Stevens & Dalbey, Bot. Gaz. 68 : 55. 

 1919. 



The description of this fungus by Stevens and Dalbey was based 



