THAXTER. — MONOGRAPH OF THE LABOVLHKXIACE-E. ;{|;} 
Laboulbenia PsBUBOMASCl Thaxter. Plate \A\\ fig, (5. 
Proc. Am. Acad. Arts and Sri., Vol. XXXV, p. VM Dm., |vm 
Perithelia dark rich brown, slightly and rather evenly inflated, relative]} laigr iliwrgent, fr< from 
the receptacle except at the very base; the broad opaque tip hardly differentiated, the lip-etlp nearh 
hyaline, not prominent, turned slightly outward. Receptacle colorless or yellowish below . distallv brown- 
rgin of cell V partly free from the per 
II. 
cium. Insertion-cell free, black. Outer appendage consisting of a basal nil se\ ml times longer than 
it is broad, which may branch above its basal or subbasal cell one to three tin - successively, the hraneh- 
lets divergent; the inner appendage consisting of a much shorter basal cell bearing one or rarely two 
branches, sometimes simple, mostly one to three times branched, all the branch* Incoming more or I 
suffused with brown. Spores about 05 X 45 /z. IVritheeia 120 105 X 60 ft Total length to tip of 
perithecium 225-300 /z; to insertion-cell 170-2 10 /i. Appendages, longest 1(H) jt. 
On Pseud&mascus nigrita, Fab., Paris Museum, No. 201, Mongolia, Near upper inferior margin 
of prothorax on left side. 
This species recalls L. umbonaia in its habit of growth, the axis of the receptacle being coincident 
with that of the appendages, the peritheciuin being laterally inserted at an angle of U5P or more, the outer 
appendage often unbranched, except distallv, and the basal cell of the inner ap]>cndagc giving list, as I 
rule, to one branch only. The abrupt enlargement of cell I, immediately Mow cell II. and the form and 
contrasting coloration of the perithecium, are also characteristic 
Laboulbenia Oopteri Thaxter. Plate I>IV, fig. 12. 
Proc. Am. Acad. Arts and ScL, Vol. XXXV, p. 190. Dec, l« 
Perithecium three fourths or more free, translucent blackish brawn, the inner margin evenly cumd 
outward, the outer margin with slight elevations at the septa and curved abruptly inward to form the 
well differentiated tip which is pale brownish, with dark inferior diffusions. Receptacle COD JofOU 
with the perithecium, except that cells I and II are usually hyaline, the suffused portion par ly, rather 
coarsely and distinctly punctate. Insertion-cell broad and black. Basal cell of the outer append a ^ 
for the most part very long, simple or usually bearing distallv an outer and an inner branch sometime! 
three, the former with blackened basal septum, simple, or once branched, in which ca.se the basal sepiun. 
of the outer branchlet is also blackened. Inner appendage consisting of a ven mall baaal cell bearing 
a short branch on either side. Perithecia 95-110 X 30-36 p. Total length to tip of peritheciuin 1 
<•> 
85-160 p. Appendage broken, 200 p, probably much longer. 
On elytra of Ooptenu rotnndicoUu White, Brit. Mus. No. 613; Sharp ( oil. No. 1 161, on ( 'yrhthon 
insular is, New Zealand. 
This species is distinguished by the enlargement and elongation of the basil evil of the on r append- 
become triangul 
commonly 
become t\\ 
which ma\ 
bears two terminal branches, as m hg. 1Z, ana is wmeuiu. » ...» c * c ,. »- - , - 
rice proliferous, so that three closely set branches ari, from it in rainalw each of 
r branch above its basal cell. The outer branch is always distinguished by a black m- p urn, 
.... .„ wu ter branchlet is similarly distinguished and more or less distinctly edged externally With Mac 
The figure was dra, n from the material on Ooptcn,, I shall endeew* in a future pubh< ton to .Uus ra 
this species more fully from the Cychthorax material which is in good condition and mffiaently abundant 
The species appears to be allied to L. bidentata and L. Copies, but is rcadtb parated Iron, ether. 
Labchlbexia Copte.e Thaxter. Plate L1V, fig. 13. 
Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 107. Dec-, 1SW. 
Form slender. Perithecium free, except the base, nearly straight, curve! outward jW^eJbp 
which is blackish with hyaline lip-edges; dull tran— < -"-Amwn. « oloraos *,th tin race P tacl< 
V I 
