440 THAXTER. — MONOGRAPH OF THE LABOULBENIACE^]. 
to differ from its nearest ally, C. eonfumi, in the different conformation of the papillate apex of its peri- 
thecium, the ti|> <>f which is smaller and less prominent, in the even inflation and dark basal suffusion of 
the perithecial appendage and in the character of its antheridial appendage; but especially in the finger- 
like protrusion of its receptacle which, although it varies somewhat in length in different individuals, is 
very characteristic. The species appeals to be rather rare, only a very small number of the very numer- 
ous hosts examined from Eustis being parasitized. Fig. 4 represents the Type from Brazil and fig. 5 
a specimen from Eustis. 
Ceratomtces Flori davits Thaxter. Plate LXX, fig. 4. 
l'roc. Am. Acad. Arts and Sci., Vol. XXXV, p. 444. April, 1900. 
Purplish brown. Perithecium mueh as in C. confusus, the outer margin nearly straight, the inner 
omewhal convex, the lateral and posterior rows of wall-eells, about twenty-four in number, rich red-brown 
with a blackish tinge distally; the anterior wall-eells, about nineteen in number below the perithecial 
pent luge abruptly and evenly paler, yellowish straw-color or faintly brownish; the twentieth cell (about) 
forming the base of tin* perithecial appendage which is black, quite opaque, curved outward and upward 
and geniculate near its base, the inner margin of which is abruptly distinguished (not continuous with 
the adjacent margin of the tip as in C. conjusus); the tip distally hyaline, the apex forming a prominent 
rymmetrica] well defined rounded hyaline papilla. Receptacle marked by fine longitudinal striatums 
consisting of three superposed cells almost wholly black and opaque except along their anterior margins 
and the distal margin of the upper cell, which are pale straw-yellow or amber-colored, the series sur- 
mounted by two small flattened cells from which arise the perithecium and appendage respectively. Ap- 
pendage long tapering, consisting of seven or eight superposed cells, clear reddish brown with a blackish 
tinge, the inner margin as well as the distal portion yellowish or amber-colored. Perithecia 300-325 X 
60 /', the appendage 150 (L Receptacle 150-160 X 75 fi. Appendage about 175-200 fL 
( )n the margin of left elytron of Tropistcrmis cjlaber lib. ( ?), Eustis, Florida, October. 
Although this species is closely allied to C. conjusus it may be readily distinguished by its perithecial 
and antheridial appendages, the latter characteristic in appearance, abruptly distinguished and contrasting- 
hlaek, the former straight stout, rigid, with much larger basal cells, and deep external suffusions. There 
is moreover a peculiar semi-olive caste to the deeper suffusions, which is not present in other species. 
The receptacle, like that of C. spiruyerus, is marked by fine longitudinal striations, which are only visible 
in the translucent portion. There may perhaps be some doubt as to the determination of the host which 
is not certainly T. glabcr, though very similar to that species. 
Ceratomyces spinigerus Thaxter. Plate LXX, figs. 5-G. 
Troc. Am. Acad. Arts and Sci., Vol. XXXVII, p. 42. June, 1901. 
Bright amber-brown. Perithecium paler anteriorly, about twenty-eight wall-cells in each row; 
narrower at the base, the lower half bulging anteriorly, tapering distally where it is rather strongly curved 
away From the antheridial appendage: the tip hyaline, prominent, obtuse, about half as long as the curved 
tooth- or spine-like one-celled deep amber-brown appendage, which arises below and beside it. Basal cell 
••I the receptacle large, long, mostly curved, broader distally, opaque; the portion above it relatively small 
and oarrow, concolorons with the perithecium the upper cells marked by fine parallel longitudinal stria- 
ther remotely septate, but the basal 
mres 90 X 4 p, in one small speci- 
■ cll oft 
men 1G5 X 4.5 ft Perithecia 425-500 X 70-9 
150-1 
200-32 
appendage 45-50 ji. Receptacle 175-2 
■ On the inferior anterior margin of the thorax near the base of the right elytron of Tropisternus apici- 
palpv Cast., Jalapa, Mexico. Sharp run. .*:_.. * T 6 J r 
It 
A very beautiful species abundantly distinguished" by reason of its many peculiarities from all others. 
■ 1-rhaps more nearly alhed to C. FManus than to any other and has the same peculiar longitudinal 
