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MONO GRAPH OP THE LAEOULBENIACE^. 289 
On LaccopJiilus maculosuS Germ., Connecticut. 
The more or less wcdgc-shapcd apex of the pcrithccinm of this very distinct form projects 
outward abruptly at right angles to the straight outer pcrithccial margin. The hook-like 
appendage is quite unlike tliat of any othur species in form and position, and, occurring only on 
one side, is not seen unless the pcrithecium lies at the right. It occurs with C. Bjjinigcrus^ C, 
hyalinuSj and rarely C. marc/lnatifs, on the posterior logs of its host. 
Chitonomyces melanurus Peyritsch. Plate XXVI, fig. 19. 
Sitz. d. k. Acad. d. Wissen., Bd. LX VII, p. 251, Plate III, figs. 30-34 ; AVieu, 1873 ; Wint( r Die I'il/.o Deutschl., Bd. II. p. 024, 
Pkte 
914; Burlese, Malpighia, Vul. Ill, p. 59. 
Straw colored, becoming faintly brownish. Perithccium sliglitly inflated near its base, its 
sub-terminal wall-cells expanded to form a projection from the outer and inner margin, each of 
which extends a little beyond the small hyaline apex which lies between ihcin ; tlie outer projec- 
tion smaller and distinctly brownish, the inner nearly twice as broad and hyaline. The two 
lower cells of the receptacle nearly equal, forming a rather slender basal portion, above wliich it 
expands somewhat abruptly: the terminal and sub-terminal cells deeply blackened, the 1at«''r 
proliferous externally below the insertion of the appendage, which is thus turned inward, and 
becomes lateral in position, the proliferation extending some distance beyond it, and forming a 
terminal, tranf^lucent, outwardly turned hook. Length of perithecium, 95-100 /x. Total length 
to tip of perithecium about 150-100/*; to tip of receptacle, 145-150 /t. Greatest width, 
30-35 fi. 
On Laccophilus mhiutus Sturm, and L. hyalinus Pej., Europe. 
This peculiar species, which is the type of the genus, does not appear to occur in this 
country, its place being taken curiously enough by the succeeding species, which occurs in 
exactly the same position often in company with C, paradoxus, and exhibits a somewhat similar 
proliferation of the terminal cell of tlie receptacle. The material from which the accompanying 
f]o-ure and description were derived was found on a specimen of Laccophilus from Germany in 
the collection of the Museum at Cambridge. Although Peyritsch placed it in a genus distinct 
from C. paradoxus, there is no doubt .whatever as to the generic identity of the two forms. 
Chitonomyces 3IARGINATU3 Tliaxtcr. Plate XXVI, figs. 20-22; Plate VII, figs. 25-27. 
Heimatomtces MARGiNATDS: Proc. Am. Acad. Arts and Sci. VoL XX^ II» p. 34. 
Long and slender, at first nearly hyaline, then yellowish. Perithecium straight, then suddenly 
bent inward below the hyaline, neck-like, strongly curved tip. Basal cells of the receptacle snV 
triangular, the sub-basal half as large as the basal, the three cells at the base of the perithecunn 
more°than usually developed: the terminal cells all becoming black and opaque at maturity ; 
the terminal one continued by a squarish outgrowth basally hyaline, at first lateral and external, 
becoming terminal (the true apex of the cell being pushed inward and becoming lateral), hardly 
exceeding the tip of the perithecium, which it conceals. Spores, 30 x 3 /t. Perithecia, 95-110 X 
22 fi. Total length to tip of perithecium, 140-160 /*. Basal cells of receptacle, 25 /*. 
19 
