304 MONOGRAPH OF THE LABOULBENIACE^. 
its Stalk-cell hyaline, blackened at its base, two or tbree times as long as broad, its basal cells 
not abrnptly distinguished, and concolorous with it ; the inner as long as the stalk-cell. Recep- 
tacle short, narrowed below, the basal cell small, hyaline or brown and translucent,, the rest 
black, opaque. Terminal appendages short, usually broken or obsolete, the main (lateral) 
appendages primarily two in number : an upper simple, a lower furcate near its base, each con- 
sisting of a main more or less obliquely septate axis, from which numerous obliquely septate 
more or less appressed branches are produced externally, which may themselves produce simple 
branchlets ; the branches externally opaque. Spores, 40 X 4 yu.. Peritliecia, including basal cells, 
415x50-130x33^. Average, 290 /* long; the stalk-cell, 37-95 ft long. Appendages, 130- 
536 jj. long. Total length to tip of perithecium, 600-200 /i. 
On Cryptohium pallipes Grav., and C. hicolor Grav., Virginia, Pennsylvania, Kansas. 
The typo of this fine species was found on the leg of a specimen of C. pallipes sent me 
from Virginia by Mr. Pergaiide, and a small number of examples was subsequently found on a 
specimen of C. hicolor in the Mnseum collection. More recentlv a large number of both these 
mu 
to be regretted that the figures given on Plate IX. should not Iiavc been drawn from these per- 
fect and well developed specimens. The species varies very greatly in size, as may l»c infci-rod 
fi-om the above measurements, as well as in the relative length of its different parts. In perfectly 
developed specimens the appendages often sliglitly exceed the tip of the Dcrithccium. There is 
common 
arising from each cell of the main axis, which, tliough straight and rigid, aj)p('ar to l)c formed 
as a result of successive syrapodial branching. Specimens occurring on the abdomen of the host 
are commonly far larger than those which are attached to the legs. In general apjicarancc the 
species recalls in some respects the remarkable East Indian LaloulUnia pahnella (Phitc XVIII, 
fig. 11), but the resemblance is wholly superficial. The hosts above mcntiono.l 
conspicuous Staphylinid beetles, common under stones and in wet rubbish alonix the m^ar-ins 
of streams and ponds. 
P- 
_ s.^^^ "'"'D 
CoRETHROMYCES JACOBiNUS Thaxtcr. Plate IX, figs. 3-5. 
r 
Proc. Am. Acad. Arts and Sci. Vol. XXVIII, p. 181. 
Perithecium I.yaline, becoming faintly brownish, rather short, somewhat inflated, tapering to 
a bhn.t apex. Receptaele short, the basal eell small, hyaline; partly, 50n>otimes wholly, blaek 
and opaque, Appemjnges arising in a fan-like tuft, the two or three n>.in axes nMinllv short, 
formed by sympod,al branehing; the branchlets onee or twice hrauehed, much longer, the outer 
beeonHug brown e ,n„er mostly hyaline. Perithceia, 65-75 x - ;.. Appe„,h,ges about ICO- 
200^ long. Total length to tip of perithecium about 150,1 
r„I"A'^'""'™*'r,''r''T ^"'■' ^'^'""""^ ■• «» ^- 'Mare Er., Kitlery Point, Maine; on 
Lathrohmm sp., Arimgton, Mass. . 
less exh, 1. . , ' ^''""'^' '" '"-^""'"'<'<' ; figures 3 and 4 representing more or 
two no i !i f "",' ""^' '''="™ "' ^'=™'''P"™' -"• •'^ «-"• I" » fowlnslanees 
t>™ pcutheeia are formed, one above the other, as already desJribed. The form, though so 
