34 PROCEEDINGS OF THE AMERICAN ACADKMY. 



Laboulbenia dentifera nov. sp. 



Perithecium relatively large, as long or longer than the receptacle, 

 straight, erect, almost wholly free, rather dark dull brown ; the outer 

 margin distally converging rather abruptly in an almost straight line 

 to the apex ; one (the right) of the lateral lip-cells prolonged obliquely 

 inward and upward to form a large tooth-like projection. The receptacle 

 relatively short and stout, the basal cell longer, hyaline and contrasting, 

 except distally, where it is involved in the general uniform dark dirty 

 olive-brown sutFusion of the rest of the receptacle, the cells of which are 

 short and broad, punctate, hardly distinguishable. The insertion-cell 

 thick, black, rather narrow, tlie basal cell of the outer appendage short 

 and stout, bearing distally an inner and an outer branch, the basal cell 

 of the outer bearing two branches, the black contrasting constricted 

 base, only, of the outer persisting ; the appendages otherwise hvaline, 

 stout, tapering slightly; the basal cell of the inner appendage very 

 small, roundish, bearing a branch on either side with single antheridia 

 near the base. Perithecium 125 X 32 /<, the tooth-like appendage 20 «. 

 Receptacle 115 X 55^. Appendage 220 ^u. Total length to tip of 

 perithecium 240^. 



A single specimen on the margin of the elytra of Notiobia disposita 

 Bates ; British Museum No. 678 ; Chontales, Nicaragua. 



Laboulbenia Disenochi nov. sp. 



Perithecium from two thirds to three quarters free, transparent, yel- 

 lowish, becoming more or less irregularly and for the most part rather 

 faintly suffused with blackish brown ; the tip relatively large, black, 

 more or less well distinguished, the black suffusion not abruptly limited 

 and extending some distance downward externally ; the lips outwardly 

 oblique, hyaline about the pore. Receptacle rather short and stout, 

 normal, pale yellowish, often becoming tinged with brown distally where 

 it is rather faintly striate. Insertion-cell well defined, slightly oblique. 

 Outer appendage consisting of an erect series of usually four hyaline 

 cells, each of which bears externally (tiie upper terminally) a stiff simple 

 branch of variable length, curved outward and upward, deeply blackened 

 externally, the notched often broadly hyaline upper (inner) margin con- 

 trasting: the basal cell of the inner appendage bearing a branch on either 

 side, mostly two- to three-celled, 'and resembling the outer appendage, 

 except for the presence of basal autheridial branchlets on which the 

 brown antheridia are borne terminally, usually in pairs. Spores 65 X 6 ^. 



