PAPERS ON BOTANY 207 
On Aguas Buenas, 302, on Rudolphia volubilis, Mari- 
cao, 5439, Luquillo Forest, 5439a, on Piper, Maricao, 3371, on 
Zamia integrifolia, Monsallo, 9348, on Chiococca alba, Vega 
Baja, 7743, on Winterana canella, Guayanilla, 8548, on An- 
ona montana, Mayaguez, 7561, on Myrcia deflexa, El Alto de 
la Bandera, 8268, on Didymopanax, 1246, on Miconia, 6705. 
This peculiar fungus agrees very closely, even in minute de- 
tails, with the South American form as described and figured 
by Spegazzini. 3 
Passalora F. and Mont 
un 
Passalora cercropiae sp. nov. 
Spots visible from above, below consisting of irregular, 
diffuse smoky blotches, 1-2 cm. in diameter. Conidiophores 
simple, smooth, black, over 600 p» long, slightly geniculate at 
the tip, 3» thick. Conidia pale to black, oblong to clavate, apex 
cbtuse, base often pointed, 2-celled, 2-27x3.5 p. 
On Cecropia peltata, Arecibo, 7790. 
Cladosporium Link 
Cladosporium calotropidis sp. nov, 
Spots circular, 1-5 cm. in diameter, indefinite border, gray- 
ish-black, equally visible above and below but more definitely 
bordered below. Conidiophores cespitose from the stomata, 
amphigenous but much more abundant above, occupying every 
stoma within the diseased area. Each conidiophore cluster 
consists of from 10-20 conidiophores. Conidiophores short, 
20x35 » thick, 7 », simple, obtuse, dark, crooked, 1 or more 
septate. Conidia oval to cylindrical, 1-2 or 3-celled, mostly 
2-celled, brown, 20-34x7 up. 
On Calotropis procera, Guayanilla, 9130 (type), 291. 
Cladosporium guanicensis sp. nov, 
Spots 1-5 mm. in diameter, roughly circular, definite, pale 
above, dark below. Conidiophore clusters hypophyllous, num- 
erous, dense, so close together as to nearly cover the leaf. 
Conidiophores about 75 » long, yellow. Conidia yellow, 2- 
celled, oval, obtuse, 17-24x8 x. 
