August, 1888.] 
NRW FUNGI. 
v 81 
upper part of the ascus and when this is ruptured protrude like 
the sporidia in some species of Ophiobolus. Often these hair-like 
appendages remain more or less bent or curved but for the most 
part straighten themselves out more or less perfectly after leaving 
the asci. The perithecia occur also on the petioles of the leaf, and 
are more perfectly developed there but are readily distinguished 
from those of G. emarginota by their shorter thinner ostiola and 
also by the color of the petiole itself which is of a lighter color 
when occupied by the last mentioned species. 
(G-nomonia emarginata, Fckl. Symb. p, 122)?—On petioles 
of fallen and decaying leaves of Acer rubrum, Newfield, N. J., 
June 1888. Perithecia depressed, \ mm. diam. covered by the 
cuticle, which is distinctly raised over them, Ostiolum black, 
setiform,-crooked, slender, about 2 mm. long, attached to one side 
of the perithecia. Asci sessile, broad fusoid, 70—80 x 15. Spo¬ 
ridia fasciculate, fusoid 4-nucleate (probably becoming 1-septate), 
yellowish-hyaline, 25—30 x 4—4J, with a stout, awl-shaped, hya¬ 
line appendage at-each end. The appendages however soon dis¬ 
appear. Fuckel gives no measurements of the asci and sporidia 
and on referring to the specimens in the exsiccati accessible, those 
in Kunze’s Fungi Selecti, 252 and in Fungi Austriaci, 966 and 
Fungi Gallici 3951 are without fruit. In the Rabh. Winter series 
(2756 on leaves ofBetula alba), the perithecia and ostiola are the 
same as in our specimens but the asci and sporidia are smaller, 
viz.: 35—40 x 7, and 20— 22 x 2—2|, respectively. Dr. Winter 
refers the number just mentioned (2756) to G. setacea Pers. but 
that species lias smaller perithecia and sporidia. Saccardo in Syll. 
gives the sporidia as 14—15 x —2, and Karsten 8—14 x about 
1 micr. Examining the specimens of this species in our exsiccati we 
find it in de Thumen’s Mycotheca, 455 and 1741, in Rehms Ascomy- 
cetes 494 and 495 and in Kunze’s F. Sel. 251, with the sporidia quite 
uniformly 10—12 x 1J— ] J. It would therefore seem that Rab. 
Winter 2756 may be more properly referred to G. emargincita, 
Fckl. and we are disposed to refer for the present also to that 
species the Newfield specimens on.petioles of maple leaves though 
they have the sporidia considerably longer and thicker. No ap¬ 
pendages were seen on the sporidia in Rabh. Winter 2756 but 
these often disappear in old or mature specimens.. 
