PAPERS ON BOTANY 179 
diameter, thick walled, dark, smooth, l-celled. Conidia oblong- 
fusoid; otherwise as in the type. On Podocarpus coriaceous 
near Maricao. 784 (type,) 810, 6713, 6722, 3576, 4363, 8858, 
5820. 
This differs from C. clavata (L.) Sacc. which is reported on 
P. thunbergii, P. elongata, and P. totarae, in its narrower asci, 
larger spores, and few-spored ascus, and from the other forms 
of Corynelia, C. clavata var. macrospora Syd. on P. milanjiant, 
C’. areophila (Speg.) Starb, on Podocarpus sp., C. carpophila 
Syd. on Rapanea in size of spores and ascus and number of 
spores per ascus. 
Corynelia pteridicola sp. nov. Fig. 6. 
Spots from less than a millimeter to 3 or 4 mm. in diameter, 
fungus usually though not always hypophyllous. Stroma small, 
0.5-3 mm. in diameter, the central part falling out with age and 
the stroma thus becoming annular. Perithecia numerous, soli- 
tary on long stalks which arise from the stromata. Perithecial 
stalks about 500 » long, 60 » thick, sporogenous region about 
160x95y, beak extending about 200-300 » beyond the sporo- 
genous region. Perithecial stalk hairy with brown mycelium, 
10-45x3 p», sporogenous region and beak glabrous. Total di- 
mensions of perithecial structure 900-1090x60 ». Asci, thin- 
walled, irregular in shape, 8-spored, 20-27x7 ». Spores spher- 
ical, dark, 1-celled, 4 » in diameter. 
On Campyloneurum sp. Afiasco, 3551. 
The species differs markedly from other Corynelias in the 
size of its spores and in its long-stalked perithecia. 
All the leaf tissue in a minute circular area is consumed and 
replaced by the fungus forming a stroma. From this arise 
‘numerous stalked perithecia. The central part of the stroma 
after sporing drops out, leaving only the opposite epidermis, or 
often ahole. The cavity thus formed in the leaf is surrounded 
by a ring-shaped stroma the thickness of the leaf or a trifle 
thicker and less than half a millimeter in breadth. This con- 
tinues to produce stalked perithecia, advancing into new tissue 
and falling away in the older portions, thus a diseased spot a 
few days old is a hole surrounded by the ring of stroma which 
bristles with the numerous black, stalked perithecia, 
