THAXTER. NEW LABOULBENIACEAE. 29 



On Tltyreopterus (?), sp., S. Borneo ; Dr. Sharp's Collection, No. 

 1201. 



Laboulbenia cauliculata nov. sp. 



Perithecium short and stout, straight or slightly curved, inflated more 

 prominently on its inner side ; dull olivaceous brown, translucent, or 

 becoming opaque ; the basal wall-cells forming a well-defiued pale 

 olivaceous or hyaline narrow stalk; the tip blacl^ broad, not distin- 

 guished, except by its color; the rather coarse, but not prominent, 

 lip-edges hyaline and outwardly oblique. Receptacle relatively short 

 and small, the basal cell usually curved, narrow and subhyaline below, 

 becoming opaque and punctate distally ; the subbasal cell having ordy a 

 small portion of its posterior margin free, cell III being subtriangular 

 and overlapping it ; cell IV nearly as broad as, and somewhat larger 

 than cell III, separated from cell V, which may equal it in size, by a 

 vertical or but slightly oblique septum ; cells II- VI mostly translucent 

 yellowish brown, often becoming opaque. Insertion-cell rather broad : 

 basal cells of the appendages hardly distinguishable, the outer giving 

 rise abruptly to usually two erect, or slightly divergent, stiff, bristle- 

 like, curved branches, which are blackish brown, externally opaque, 

 producing short hyaline branchlets along their hyaline inner margins : the 

 basal cell of the inner appendage producing a branch on either side con- 

 sisting of from one to two cells from which arise several branchlets 

 similar to those of the outer appendages. Spores 58 X 5 p. Perithecia 

 125-165 X 45-60,1/, including stalk (18-22^). Receptacle 90-100 X 

 35-40 ft. Appendages 125-185 p. Total length to tip of perithecium 

 220-290 /,. 



On Golpocaccus Lanaiensis var., No. 1226 ; O. marginatus Sharp, Kaui, 

 No. 1228; on Atelothrus depressus Sharp, Lanai, No. 1231; A. con- 

 strictus Sharp, Molokai, No. 1234; Mesothriseus Hawaiiensis Sharp, 

 Hawaii, No. 1238; on other numbers if the Perkins Collection of 

 Hawaiian Carabidae as follows: Kaui, Nos. 1220, 1246-1248; Tahura, 

 No. 1236; Molokai, No. 1250; Oahu, Nos. 1241, 1244; Maui, Nos. 

 1214, 1242, 1253, 1255. 



Var. prolixa nov. var. Perithecium straight or slightly curved, large 

 and greatly elongated, the body opaque ; the neck usually elongate, hya- 

 line or translucent. Receptacle as in the type, but usually translucent 

 brownish yellow. Branches of the appendages usually more numerous 

 and more slender, the two main branches of the inner often consisting of 

 from three to four cells. Spores 70 x 5 p. Perithecia 365-540 X 55 p, 



