THAXTER. — NEW LABOULBENIACE^. 175 



Laboulbenia erecta nov. sp. 



Perithecium pale yellowish brown, slightly and evenly rounded, united 

 to the receptacle as far as its subterminal cells, the nearly symmetrical 

 tip rather broad, often flattened distally, becoming deeply suffused with 

 blackish, except the narrow translucent margins of the lips. Receptacle 

 pale yellowish, cell I short and stout, distally suffused with blackish 

 brown ; cell VI very small, cell V free from the perithecium, sometimes 

 lateral as in L. paupercxda. Insertion-cell thick and black, sometimes 

 carried forward opposite the apex of the perithecium through the elonga- 

 tion of cells IV and V. Outer appendage consisting of a large basal cell 

 several times longer than broad, which may bear terminally one or two 

 branches, the outer sometimes once branched, the branchlets very long, 

 slender, tapering, hyaline or pale yellowish, more or less flexuous : the 

 inner appendage sometimes laterally placed, usually single, simple, con- 

 sisting of two or three short cells with one or two lateral antheridia and 

 sometimes producing longer branchlets, the basal cell much smaller than 

 that of the outer appendage. Perithecia 110-120 X 35-40 /z. Total 

 length to tip of perithecium 200-275 /x ; to insertion-cell 200-250 /x. 

 Appendages, longest 675 ^. 



On " Colpodes agil'is Chd.," Jalapa, Mexico, Brit. Mus. (Biologia 

 Coll.), No. 696; on Q. evanescens Bates, U. S. National Museum, Bio- 

 logia Coll., Mexico. Elytra. 



Laboulbenia falcata nov. sp. 



Perithecium free or nearly so, mostly very large, pale yellowish, the 

 inner half or more suffused with smoky brown, darker toward the margin, 

 the base more or less strongly curved so that the perithecium is directed 

 outward nearly at right angles to the axis of the receptacle or even re- 

 curved, basally inflated along the inner margin, tapering gradually from 

 about the lower third to the apex; the tip not differentiated from the body 

 of the perithecium, the lip-cells with darker longitudinal brown shades. 

 Receptacle short, straight or nearly so, the basal cell broad, sometimes 

 slightly inflated, a slight constriction often present between cells II and 

 III, all the remaining cells unusually small in proportion. Outer append- 

 age consisting of a small rounded basal cell bearing a single branch sepa- 

 rated from it by a blackened septum and consisting of a hyaline externally 

 blackened basal cell bearing two branchlets ; an outer (usually broken) 

 externally blackened and bearing several vertical branchlets ; an inner 

 usually simple, hyaline or yellowish. Inner appendage consisting of a 



