MOXOGRAPII OF THE LABOULBLNIArF t:. .^71 
Stalk. Tlie great vaiiabilify in the leng(h of tlic tricho,L'-ync is a further indication that it seeks 
the antlicrozoids, continuing to eh)ngate initil one of <he latter becomes fixed to it, after which 
it is drawn up into a more or less horizontal position throuo-h a curvature at its I);isc (fig. 
17). In all of the many observed cnscs, the anthcrozoid has been found affaohed to (ho 
tip of the trichoyryne, a further confirmation of the view ju^t expressed (figs. 17, IS). After 
the adherence of the antherozoid the trichogyne soon shrivels, reuiaining for a time as a sh'glit 
terminal prominence (fig. 25). Meantime one of the cells at the base of the peritlioeiuin, per- 
haps corresponding to the secondary stalk-cell of other inslances, produces a curious short, 
(fig. 19) 
guificance. '" 
rhc four cell-rows of the pcri- 
thccial wall then become more or less apparent; but the exact number of cells in each is 
determined with considerable difllculty. ^ix eells may, howevei-, in favorable specimens be made 
out, and in the single type species the third cell from the tip of each row j)roduces an nppendage. 
Tliesc appendages (figs. 10-12, etc.) arc so placed that those arising from the dorsal cell-rows 
are higher than the others, and arise side by side ; while those from the lateral cell-rows spring 
from opp'^<'ite sides of the perithecium. They begin to develop by budding outwmd after the 
perilheciuui is nearly mature (fig. 20) and have no special significance, their purpose being j.rob- 
ably protective. The terminal cells of (he perithecium end each in a hhort, sharp, slender j.ro- 
jection (figs. 9-11). The ascogenic cell appears to be solitary, but this point has not been made 
out definitely. At maturity the septa of the basal eells of the perifheeia are ajiparcntly obliter- 
ated, as are the cavities of the wall-cells. The main body or receptacle of the mature individual 
is attached by a single large, slightly colored cell, above which it may produce more or less solid 
cellular outgrowths, simple, lobcd, or even branched, and arising from one or both sides. These 
outgrowths, which are doubtless designed to prevent sudden lateral bending, are very often 
wholly wanting even in old individuals. The medullary jjortion of the receptacle, which lies 
below the perithecigcrous area, is made up of cells charged with dense yellowish fatty pro- 
toplasm. 
ZoPiOMYCES yoRTiCELLAEius Thaxtcr. Plate XXIII, figs. 1-24. 
I'roc. Am. Acad. Arts and Sci. Vol. XXIV, p. 263 ; 8acr,ir<Io Sylloge, Vol. IX, p. 1130. 
Hyaline or livid with a central yellowish tinge, often sufTused basally with dull purjdish above 
and including the sometimes nearly opaque basal cell. Perithecia numerous, variable in num- 
ber, each terminal on a slender cylindrical stalk of two superposed cells, becoming sub-lateral 
through the production of a short lateral upturned blunt outgrowth, arising from a short cell 
cut off below its base ; its apex more or less pointed, curved strongly forward from the base of 
a pair of blunt rather stout sub-cylindrical or sub-clavate recurved appendages, which arise side 
by side from its posterior surface ; producing laterally on each side, lower than the first, a second 
appendage, long, slender, curved outward and backward, tapering to a more or less attenuated 
tip: the body of the perithecium slightly inflated, stouter distally, narrowed towards its base, its 
basal cells (three?) small and ill defined. Keeeptaele very variable in size and form, expandinu: 
distally to the cup-Iikc extremity from within the margin of which arise numerous crowded, 
cylindrical, septate, simide or sparingly branched sterile appendages which surround and greatly 
exceed in length the mass of perithecia; below more or less attenuated, often producing near 
