PAPERS ON BOTANY 197 
Cytospora Ehrenb. 
NECTRIOIDACEAE 
Aschersonia Mont. 
Aschersoma aleyrodis Web. 
On Psidum guayava, Mayaguez, 6643, 493, 6362, Jayuya, 
3120a, Utuado, 6615, Rio Piedras (Johnston), 4360. 
Aschersonia cubensis B, & C. 
On Zamia integrifolia, Sta. Ana, 6674. On scale on Citrus 
(Stevenson), 2649. 
Fungi which closely resemble the above but of which specific 
determination could not be made were found on: 
Miconia, Vega Alta, 4155; Palicourea, Manati, 4279; We- 
delia, Vega Baja, 1928; Rondeletia, Maricao, 870; Gesneria, 
Maricao, 1002, 4670; Paullinia, 1207; Pilocarpus, Mayaguez, 
7080; Inga, Mayaguez, 7474; Ocotea, Jajome Alto 8428, Vega 
Baja, 509; Blechnium,—; Pavonia typhalaea, Mayaguez, 7400 
Melasmia Lév. 
Melasmia coccolobiae sp. nov. 
Stromata hypophyllous, circular, about 2 mm. in diameter, 
black, each bearing several conidial cavities, strictly superficial 
but with the mycelium extending deep within the leaf. Pycnidia 
approximately circular, 60-90 » in diameter, the base colorless 
and thin, resting on the cuticle, the pycnidial cavity covered by 
a thick, black, fungous cover. Conidiophores short. Conidia 
hyaline, continuous, acute at one end, rounded at the other, 
8-10x2 up. 
On Coccolobis, Maricao, 3712 (type). 
Melasmia ingae sp. nov. 
Spots circular, visible above and below ; from above 2-3 mm, 
in diameter, centers filled by a black stroma 1-2 mm. in di- 
ameter, border definite; from below black stroma surrounded 
by a pale zone 1-2 mm. broad. Stroma bearing several spore 
cavities mostly located at its margin. Mycelium permeating 
the leaf tissue in the diseased region. Stromata subcuticular 
