THAXTEIt. — MONOGRAPH OF THE LABOULBEM AC] K. 2 
i" u 
of which is also blackened; the subbasal cell of the receptacle producing a sulxsiect, short-stalked, rather 
long and narrow antheridium; the neck relatively broad, blunt, about as long as the stalk and venter 
Total length to tip of antheridium 60 /r. the antheridium, including stalk, 28 i0 X 7-8 , 
e body <>f tlic pcrithi < ium 
individual 
Receptacle consisting of usually five cells obliquely superposed, with the ex< ption of the uppcrum * 
successively smaller from below upward, the series more or 1 s strongly curved outward from the mu)< 
the subbasal cell bearing a simple differentiated appendage, its basal cell more or less geniculate and 
on 
striction; the cell next above it producing the single perithecium; the next a simple cylindrical slight!; 
tapering appendage with a black subbasal constricted septum; the terminal cell bearing terminally a 
short, simple, few-celled primary appendage, distinguished by a constricted black basal and a pale sub- 
basal septum, and laterally a similar appendage distinguished by a subbi il blackish constricted septum. 
Perithelium rather elongate, subclavate or subfusoid, the stalk not distinguished from the body of the 
perithecium, and sometimes showing irregular septa; the tip often mewl i at abruptly distinguished 
blunt, slightly asymmetrical. Spores about 35 X 3.5 /i. Perithecia, including stalk, 90 1 in X IS '22 ft. 
Longest appendage 80 fx. Receptacle 60-70 /z. Total length to tip of perithechim 150 1S5 /*. 
On all parts of Forficula kmiata Dohrn.; Mus. Comp. Zool., No. 1365; Guatemala. 
A species most nearly related to the other forms on earwigs, but clearly distinguished by numerou 
points of difference in both sexes. 
Djmeromyces RHIZOPHOBUS Thaxter. 
">-8 
Proc. Am. Acad. Arts and Sci., Vol. XXXVI, p. 412. March, 190L 
Male Individual. 
penetr 
uperpose 
which usually bears an antheridium, the upper terminated by a short, pointed, slender cell. The an- 
3.5 /x. Antheridia 25 X 9 ft. 
i ks. Receptacle about 50 X 8/!. Ap|>endage 
Individual More or less deeply tinged with amber-brown. Receptacle amber-brown, 
rposed 
risible above the integument, pom rat< 
the host directly by means of a very large, abruptly furcate rhizoid, the two oeUs above h similar, broader 
than long, bearing each an appendage consisting of a basal cell bent toward the receptacle, darker and 
narrower distally, and separated by a dark septum from the three-celled terminal portion, which is straight 
The next (fourth) cell of the receptacle bears the single perithelium; the distal terminal cell lone r and 
narrower, and terminated by a short, pointed, one sometimes two-celled primary appendage (similar 
to that of the male individual), from which it is separated by a constriction; the siihimiiiiinl cell nar- 
rower distally, producing on its inner side an appendage similar to those below it, but straight and tome- 
what shorter. Perithecium with a short stout stalk rapidly expanding into the asymmetrically inflated 
deeper brown venter of the perithecium; the neck very short and abruptly distinguished; the tip relatively 
large, four-lobed, inflated with two lateral papillate outgrowths, above which the lips form a subcorneal 
projection. Spores about 25 X 3 pu Perithecium including stalk 70 90 X 20-25 ft. Receptaek abou 
45 X 12 fx. Primary appendage 12 ft; secondary appendages 3.5-40 fL Penetrating rliizoidal branches 
150-184 X 10-12 ft. Total length to tip of perithecium 00 -1 10 p. 
On the inferior surface of the abdomen of a small fly. Ralum, New Pomcrania. Berlin Museum, 
No. 1295. 
rhizoids which replace the normal blackened foot. 
genus by the presence 
v annear to l>e regular 
