170 ILLINOIS ACADEMY OF SCIENCE 
sometimes amphigenous. The spores when young show no 
indication of falling into segments and are straight and smooth. | 
It is only in quite mature asci that they show the character 
as given in Miss Higley’s drawing. In earlier condition and 
as more often seen they would indicate that the fungus belongs 
to the genus Perisporina of Henning. 
Perisporiopsis gen. nov. 
Type P. wrightu 
Pertsporiopsis wright. (B. & C.) comb. nov. 
Perisporium wright B. & C. 
On Opuntia. Mayaguez, 6293, Ponce, 6778. 
These specimens in their general appearance, which is very 
distinctive, agree closely with the excellent description given by 
Wolf of Texan material.’ and with a sporeless fragment of 
Wolf’s material which was loaned to me from the New York 
Botanical Garden. The rare character of spores of violet-color 
turning to brown with age, seems to make it certain that the 
Porto Rican specimens are co-specific. The affinity with the 
Plectascineae as shown by Wolf’s drawings (Fig.c, p. 126, 
1.c.) and by my own observations, and the additional character 
that the spores are frequently muriform, prevent regarding 
this fungus as a Perisporium. It differs distinctly also from 
Meliola, Pleomeliola and Cleistotheca, and the above named 
genus is therefore created for it. 
Perisporina P. Henn. 
Perisporina lantanae sp. nov. 
Fungus hypophyllous forming an abundant sooty coating, 
thickly strewn with perithecia. Mycelium dark straw colored 
to black, many septate, about 4 » in diameter, without hyphopo- 
dia. Perithecia 110-130 » in diameter when mature, when 
young, surrounded by an areola of radiating hyphae, densely 
beset with setae which in general nature are like the mycelium, 
varying from 70 to 480 » long, about 7 » thick at base, many 
septate, dark. Perithecial wall closely reticulate; perithecium 
irregularly globular, non-ostiolate. Asci 61-68x17-20 pn, 8- 
spored, inordinate. Paraphyses hyaline, filamentous, branched. 
Spores 2-3 septate, apparently usually 3-septate when mature, 
dark, 34-37x6-7 mu, two cells larger than the other two. 
On Lantana camara Lares, 4924 (type). 4926. 
1. Ann. Myc. 10:125, 1912. 
