4()6 THAXTER. — MONOGRAPH OF THE LABOULBENIACE^. 
Var. retusa nov. var. Plate LXIII, fig. 6. 
Perithecium short stout somewhat inflated, becoming deeply suffused with smoky brown; the tip 
opaque, except for the translucent lip-edges and erect, or usually bent slightly outward. Receptacle 
becoming rather evenly suffused with dirty brown, paler or hyaline at the base, and sometimes with an 
olivaceous tinge; the basal and distal portions rather variably distinguished, cells IV and V considerably 
enlarged and elongated, carrying the insertion-cell out free from the perithecium. Appendages rather 
. losely septate, the successive cells bearing the usual series of branches externally, which are simple and 
distinguished by a black septum at the base, the inner appendage shorter and more slender than the 
outer, but otherwise similar. Spores about 70 X 5.5 p.. Perithecium 150 X 60 p.. Total length to tip 
fi. Receptacle to insertion-cell 275-360 p. Appendages total length 180-280 fi. 
At the base of the anterior legs and on the adjacent inferior surface of the prothorax of Brachinus 
sp., Eustis, Fla., and from Argentina. 
This variety approaches forms of L. Pachytelis so closely that it might almost be regarded as a variety 
200-300 
species 
The material from Eustis, which 
Type 
arc shorter, with a receptacle which is basally more slender and distally more conspicuously enlarged; 
the tip of the perithecium being not as stout and less rounded and the appendages longer and more slender 
than in the type, which is represented in fig. 6. 
Var. tibialis Thaxter. Plate LXIII, figs. 8-9. 
and Sei., Vol. XXXV, p. 205. Dec, 1899. 
Art 
Perithedum deeply suffused with blackish brown, somewhat inflated, the small tip rather abruptly 
distinguished. Receptacle stout, deeply suffused with blackish brown except cells I and II, which are 
hyaline or nearly so, abruptly contrasting, and cell V which together with the adjacent portions of cell IV 
is yellowish ; cells IV and V broad, the insertion-cell broad and in contact with the base of the perithecium. 
Appendages as in L. roskllata except that the inner is larger and longer than the outer without overlapping 
it at the base and the lower branch of the outer is simple. Perithecia 150-175 X 60-70 fi. Total length 
to tip of peritheciuin 300-325 (i; to insertion-cell 200-225 /*. Appendages exclusive of the branches, 
inner 100-120 fi, outer 85 fi. 
On Brackinm sp., Eustis, Florida, October. On the legs. 
This pedicolous variety is distinguished by its contrasth o 
theeium and receptacle, cell IV of the latter being relativel/very large, and cell II very small, about a 
third as large as the basal cell; the two contrasting abruptly with the deep black suffusion of cell III. 
The appendages are further unlike those of other varieties in that the outer is much smaller than the 
inner. A second variation is represented in fig. 8, which also occurs on the legs and is distinguished by 
x # i.i . the tip 
only two individuals have 
its more compact form and the presence of a double hunch, which is developed externally below 
o! the perithedum. Whether these differences are constant is uncertain since only two individiu 
been examined. 
Laboulbenia Cafii Thaxter. Plate LXIII, fig. 1-2. 
Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 162. 
t *~— ai ™ »«*! voi. aaav, p. it>2. iiec., isyy. 
PeritJi, ,ium almost wholly fn-e, pale amber-colored or straw-yellow, transparent, stout, the tip blunt, 
With blackish basal suffusions, well distinguished, especially on the inner side. Receptacle short and 
stout, pal,- amber-colored, normal in form. Insertion-cell broad, often not deeply blackened. The 
appendages insisting of an outer and an inner series of from four to six superposed cells which, through 
a twist of the insertion-cell, become lateral instead of anteroposterior in position; each cell of these 
series prodiu^s externally a single simple short branch usually three-celled, the two lower cells short 
and mnated. the unner Inn,, tapenng to a blunt apex. Perithecia 140-165 X 60-70 p. Total length 
ft to insertion-cell about 170 p.. Appendages, longest 85 ,«. 
perithecium 310-350 
