154 
coming dark, 180-200/* in diameter. Mostly erumpent above. Spores 
ovate-oblong, hyaline 10-14 by 3J-4J/*. Possibly not distinct from 
G. umbrinellum , B. & Br., but that is said to have the spots “ minute.” 
Glceospoeium hysteeioldes, n. s. On orange leaves, Florida, 1880; 
Dr. George Martin. Spots large, mostly marginal, yellowish at tirst, 
then cinereous, and finally dirty white, border yellow, broad, and 
slightly elevated. Aeervuli erumpent, black byster;iform. Spores ob¬ 
long, 12-15 by 3J-5/*, not curved, basidia shorter than the spores. 
Spots 1-2 centimeters across, often extending along the margin of the 
leaf. Differs from G. splicer elloides, Sacc., in its short basidia and from 
G. licsperidearum in its definite spots. 
Glceospoeium eamostjm, n. s. On leaves and stems of Poly gala 
poly gam a, Xewfield, N. J., June, 1889. Parts of the leaf at first turn 
dark purple and on these discolored places appear small, circular 
yellowish-white‘spots about 1 millimeter in diameter. In these spots 
are seated the innate aeervuli, generally only one at first in the center 
of the spot, finally 2-4, slightly prominent and black above, appearing 
like the erumpent apex of a small perithecium, but the oblong-cylin¬ 
drical, slightly curved, obtusely pointed, granular, continuous, 12-22 
by 3-34/1 spores, on thick branching basidia, about as long as the spores 
themselves, are discharged below. This differs from the other species 
of Glceosporium in its branched basidia which much resemble the spores 
themselves. The fungus is very destructive to the plants, all the 
leaves soon turning pale-yellowish and falling off. 
Glceospoeium (Maesonia) beunneum, n. s. On leaves of Populas 
candicans , Newfield, X. J., August, 1889. Leaf mottled above with small 
black spots which soon become confluent in large areas, especially 
around the margin, the entire lower surface of the leaf soon assuming 
a uniform bronze-brown color. Aeervuli 1-3 in each of the minute 
black spots, pale, erumpent on both sides of the leaf, finally nearly 
black. Conidiaclavate obpiriform, hyaline, 1-septate below the middle, 
14-16 by 5-7/*. On account of the smaller conidia and different habit 
this seems sufficiently distinct from G. populi and G. castagnci. There 
are no well defined spots, only the small black specks soon confluent 
and blackening finally the greater part of the leaf. 
Glceospoeium (Maesonia) graminicolum, n. s. On living leaves 
of grasses, London, Canada, August, 1889. J. Dearness, 341. Spots 
amphigenous, black, subindefinite, 2-3 millimeters, becoming white in 
the center from the erumpent spores. Aeervuli minute, buried, cirrhi 
white, minute. Spores cylindrical, 1-septate, 15-22 by 3-4/* hyaline. 
The leaf is slightly‘thickened at the spots. 
Phleospoea aceeis, (Lib.). On leaves of Acer dasycarpum , Man¬ 
hattan, Ivans., July, 1887. W. T. Swingle. Dr. Winter has issued 
this in his Exsicc. (3480) under this name (see also X. A. F. Cent.^ 
XX111). Gloeosporium acerinum , Pass, in De ThUmen’s Mycotheca (93) 
