376 



THAXTER. — MONOGRAPH OF THE LABOULBENIACEtE. 



wise identical with it. The species appears to be allied to L. subconstricta, L. aristata, and several others 

 of the numerous and varied forms which occur on these and other nearly related genera of East Indian 

 Carabidifi. The maximum measurements given above apply to the form on Catascopus. 



Laboulbenia subconstricta Thaxter. Plate LX, figs. 30-31. 

 Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 203. Dec, 1899. 



Perithecium less than one half free, rather small, curved strongly and evenly toward the appendages, 

 evenly suffused with dark brown or lighter distally; the tip black, not abruptly distinguished, the lips 

 distinct with a broad hyaline margin about the pore. Receptacle dull amber-yellow, cells IV and V, some- 

 times cell III, less deeply suffused with brown; cell I narrow, straight, but slightly enlarged distally; cell 

 II abruptly much larger, symmetrically and prominently constricted in the middle; cells III and IV rela- 

 tively, large and broad. Outer appendage simple, the basal cell moderately large; externally or wholly 

 blackened; the rest of the appendage straight, rigid, directed across the tip of the perithecium: inner 

 appendage consisting of a smaller basal cell which bears one or two branches similar to the outer append- 

 age. Perithecia 85 X 25 [i. Total length to tip of perithecium about 200 a; to insertion-cell 165 u; 

 greatest width 50 /«. Appendages, broken, about 150 u or a little more. 



On Catascopus sp., Paris Museum, No. 116, New Guinea. On anterior inferior margin of thorax 

 on the right side. 



This species is very closely allied to L. tenuis, but differs in its short stout perithecium, and in the 

 peculiar form of its receptacle, which does not vary in the five types. 



Laboulbenia Euchil.e Thaxter. Plate LV, fig. 13-14. 

 Proc. Am. Acad. Arts and Sci., Vol. XXXVIII, p. 30. June, 1902. 



Slender, nearly uniform pale dirty yellowish throughout. Perithecium relatively small with a faint 

 brownish tinge, about four fifths free, erect, straight; the tip fairly well distinguished, the inner lip-cells 

 large, prominent, rounded, the lip-edges outwardly oblique. Receptacle slender and long, punctate, 

 the subbasal cell much longer than the basal, nearly isodiametric, or swollen above the basal cell and 

 broader than the distal part of the receptacle, which is separated from its distal end by a prominent con- 

 striction; cells III and VI subequal, or cell III larger; cell V very small; cell IV longer than broad, 

 becoming externally tinged with brownish. Insertion-cell relatively thick, free, narrow. Appendages 

 becoming wholly dark brown, in contrast to the rest of the plant; the outer simple, or once furcate above 

 the third cell; the basal cell more than twice as long as broad; the basal cell of the inner appendage less 

 than one half as large as that of the outer, bearing a usually simple branch on either side, which bears 

 single antheridia near its base. Spores 60 X 4.5 u. Perithecia 100 X 30 Receptacle 220-250 X 

 35-40 u. Appendages 150 u. Total length to tip of perithecium 300-350 a. 



At the base of the anterior legs of Eucliila flavilabris Dej., Brazil; Berlin Museum, No. 938. 



This pale dirty brownish yellow, evenly colored species is well distinguished by the peculiar con- 

 formation of its receptacle; cell II being greatly enlarged, and the receptacle immediately above it dis- 

 tinctly narrowed, forming a constriction. The appendages become very dark contrasting brown; but 

 in all the specimens examined, which are sufficiently numerous, though not in the best condition, the 

 perithecium remains concolorous with the receptacle and without dark shades. 



Laboulbenia tuberculifera Thaxter. Plate LX, figs. 1-3. 

 Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 208. Dec, 1899. 



Perithecium deeply suffused with smoky brown, free except the lower fifth; the tip not abruptly 

 distinguished, nearly black, the distal margin somewhat oblique, mostly straight with an outer more or 

 less ill defined tooth-like prominence; in general variable, the lip-cells not prominent. Receptacle rather 

 long and slender, cell I quite hyaline below, distally tinged with deep brown and coarsely punctate ; cell 

 II tinged with brown and punctate below with scattered black-brown dots, otherwise nearly hyaline, 



