340 THAXTER. — MONOGRAPH OF THE LABOULBENIACE/E. 
Labovluenia pallida Thaxter. Plate LIV, figs. 8-9. 
Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 193. Dec, 1899. 
Perithecium almost wholly free from the receptacle, colorless becoming faintly yellowish, bent out- 
ward at ■ considerable angle to the axis of the receptacle; the prominent tip abruptly distinguished, coarse 
lipped, hyaline except for an inner purplish -black suffusion. Receptacle concolorous with the perithe- 
lium, the basal cell large and broad, longer than cell II, the cells of the distal portion relatively small, 
cell 111 roundish, about as large as cells IV and V together. Insertion-cell thick, contrasting purplish 
black. < hiter appendage consisting of a basal cell, rectangular or distally enlarged and producing usually 
two, sometimes but one branch, the branches once or even twice branched, the ultimate branchlets some- 
times very elongate and attenuated: the inner appendage consisting of a basal cell much smaller than 
that of the outer and sometimes lateral in position, bearing one or two branches which may be short or 
elongate like those of the outer appendage. Perithecia 70 X 25 ft. Total length to tip of perithecium 
110-175 a; to insertion-cell 85-120 fi. Appendages, longest 285 ft. 
Harvalus. Paris Museum 
This small pale species suggests L. lepida, but is quite distinct. The broad spreading tip ot its 
!>e 
receptacle which is coincident with that of the appendages, as in L. Pseudomasei, a species otherwise 
quite different. 
Lahoulbexia Aerogenidii Thaxter. Plate LIV, figs. 4-5 
Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 155. Dec, 1899. 
Form short and stout. Perithecium suffused with smoky brown, translucent, becoming distally 
rather abruptly subhvalinc, contrasting with the abruptly differentiated tip; the latter black-brown, 
opaque or nearly so below, the lip-cells usually symmetrical, rounded, spreading broadly and rather 
abruptly, the lip-edges translucent; sometimes asymmetrical with the inner lip-cells, only, prominent 
and the pore external: the wall-cells with a slight spiral twist. Receptacle hyaline below, becoming 
more or less tinged with smoky brown above, especially cells III and IV and the region ini mediately below 
the perithecium; the suffused parts indistinctly punctate. Appendages consisting of two basal cells; 
the inner producing two short branches on either side, which usually bear a rather compact cluster of 
antheridia; the outer giving rise to from two to four branches placed antero-postcriorly with more or 
less regularity, the outer for the most part soon broken and deeply blackened, the rest especially the 
outermost more or less suffused with brown, commonly twice branched, above the basal and subbasal 
cells, elongate though for the most part broken. Total length to tip of perithecium 200-220 //. Ap- 
pendages 200-250 /*. Perithecium 110-120 X 35-45 /*, the apex reaching a width of 35 /i. 
/Kronen idion 
Although closely allied to L. filij 
member of the genus by reason of the remarkable conformation of the spreading tip of the perithecium, 
The outer branch of the outer appendage is almost 
form is shown in the young specimen represented in 
which is rendered still more prominent by its opacity, 
invariably destroyed in mature individuals; but its i 
fig. 5. 
Lahoulbenia intermedia Thaxter. Plate LIV, figs. 2-3. 
Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 181. Dec, 1890. 
Perithecium about three fourths free, suffused with yellowish brown deeper below the apex, rather 
stout, slightly inflated, the apex very broad, rounded, often almost flat, short, wholly blaekened, the lips 
indistinguishable, the wall-cells with a slight spiral twist. Receptacle short and stout, at first hyaline 
below, becoming concolorous with the perithecium. Outer appendage consisting of a rather large sub- 
bear 
external branchlets brown, basally deeply blackened. Inner appendage consisting of a basal cell similar 
