I 
372 THAXTER. — MONOGRAPH OF THE LABOULBENIACE^. 
Laboui.be.ni a distincta Thaxter. Plate LIX, figs. 15-16. 
IVoc. Am. Acad. Arts and Sci., Vol. XXXV, p. 172. Dec, 1899. 
Peril hcciuin short and broad, wholly united to the receptacle except the tip, clear dark brown, darker 
listiillv, the tip large, blackish, somewhat compressed, the lips translucent smoky brown, not prominently 
distinguished. Receptacle short and stout, the distal portion larger than the basal; cells I, II, and VI 
transparent yellowish, the rest smoky brown, marked by closely set fine transverse lines; cells III and 
IV relatively very large, subequal. Insertion-cell two thirds as broad as cells IV-V. Outer appendage 
consisting of four superposed cells, the three lower flat and subequal; the second subbasal, and third 
bearing single simple or once branched upcurved branches from their inner sides; hyaline becoming 
dark brown, the two lower larger and nearly equal, the uppermost cell much smaller almost opaque pro- 
ducing a similar branch from its inner side and a terminal branch which is deep brown curved outward 
and upward, slender, simple; the inner branches of the three cells all at first hyaline, mostly once branched; 
later developing a dark brown contrasting suffusion above their basal cells: the inner append- 
age consisting of a small basal cell producing a branch on either side, the basal cell of which is larger 
than that of the appendage, and bears two branchlcts basally suffused with brown like those of the outer 
appendage. Peritheeia 130 X 50 {i. Total length to tip of perithecium 275 \x\ to insertion-cell 250 /i; 
greatest width !)5 ft. Appendages, longest 235 /£. 
On margin of elytra of Pericallus camdcovirens Tat., Brit. Mus. No. 570, Singapore. 
The appendages of this very distinct species are quite different from those of any described form. 
The receptacle is somewhat similar to that of L. prominens, cells III and IV being relatively very large, 
ieh bulging prominently, but separated by a marked constriction. Two mature specimens only have 
been examined. The tip of the branch at the extreme left in fig. 15, has been supplied, being broken in 
the adult specimens, though present in the young, fig. 16. 
Lahoulbenia ACANTiiornoRA Thaxter. Plate LVI, fig. 14. 
Proc. Am. Acad. Arts and Sci., Vol. XXXVIII, p. 27. June, 1902. 
Pale smoky brown. Perithecium relatively very large and elongate, the lower wall-cells forming a 
well-developed stalk, slightly narrower and paler than the main body which is very long, straight, but 
slightly inflated; the tip stout, more deeply suffused, well differentiated; one of the lip-cells forming a 
median, terminal, erect, slightly curved and tapering, blunt-tipped, dark brown projection, the lower 
half broader, the whole more than twice as long as a similar second outgrowth which, arising near its 
base, curves outward on the right side (the perithecium being-considered anterior). Basal cell of recep- 
tacle subh valine, more than twice as long as broad, the subbasal subisodiametric, darker brown than 
the other cells; cells III and VI subequal, lying perpendicularly side by side, both several times longer 
than broad; cell IV about as long as cell III; cell V small, obliquely separated. Insertion-cell black, 
well defined. Outer appendage (broken) simple (?) its basal cells blackened; the branches curved 
outward, externally blackened below, and giving rise above to several successive branchlcts. Spores 
75 X 4.5 fL Perithecium (main body) 220 X 50 ft; stalk 00 X 30 //; terminal appendage 60 ;l Re- 
ceptacle 2l'0 X 65 (x. Appendages (broken) 150 ;i. Total length to tip of perithecium 580 /i. 
On the elytra of Pericallus sp.; Sharp Collection, No. 1202; East Indies. 
^ The general habit of this species, which is represented by a single type specimen, is peculiar. The 
peruhccium is much longer than the receptacle, which is shaped like a butter-spat, cell I forming the 
handle, cell II being somewhat abruptly broader, and cells III and VI being almost paired. The species 
is most nearly related to L. ceratophora, from which it differs, however, in numerous important points 
Which are too obvious to need enumeration. 
