184 ILLINOIS ACADEMY OF SCIENCE 
The fungus is widely distributed and is conspicuous on ac- 
count of its perithecia which are quite regularly concentrically 
arranged. 
Guignardia rhynchosporae sp. nov. 
Perithecia spherical, opening hypophyllous, entirely invisible 
trom above, located in the loose tissue below the epidermis, 
about 235 » in diameter. Paraphyses none, Asci long, nar- 
row, long stalked, 140-156x7 yw, 8-spored. Spores 1-celled, 
hyaline, 27x5 yw, thicker in the middle, tapering toward the 
ends. 
On Rhynchospora cyperoides, Martin Pefia, 9302 (type). 
Guignardia cephalariae (Aud.) var. alternantherae Sacc. 
On Alternanthera sessilis, Mayaguez 7554, 9360, 49, 834, 
3933, Rio Piedras, 9464, Las Marias, 8188, 8193, 7031, Utua- 
do, 4577, Guayanilla 5913. 
PLEOSPORACEAE 
Physalospora Niessl 
Physalospora caryophyllinicola sp. nov. 
Hypophyllous. Spots abundant, especially upon the lower 
leaves, closely studded with the black perithecia. Perithecia 
sub-epidermal, globose, 60-110 » in diameter, ostiole 20 ». 
dark-bordered. Asci cylindrical, 25x8 », 8-spored. Paraphyses 
filamentous, guttulate, thin. Spores 20x5 », oval with one side 
slightly more convex than the other, guttulate. 
On Drymaria cordate (L.) Willd, Jayuya, 5937. 
Physalospora lagunculariae Rehm. 
On Laguncularia racemosa, Guanica, 363, Boqueron, 367. 
It causes characteristic spots and is especially abundant on 
seedlings and cotyledons. The spores are slightly smaller than 
indicated by Rehm’s description and are not clearly fusiform 
as he describes and figures. 
Phwsalospora andtrae sp. nov. 
Spots conspicuous both above and below, tan colored, ir- 
regular in shape, rather definitely bordered. Thickly set with 
