MONOGRAPH OF THE LABOULBENIACE^E. 



327 



interior margin of the thorax and the adjacent posterior margin of the prothorax. It is subject 

 to but slight variation, and is doubtless widely distributed. 



Laboulbenia inflata Thaxter. Plate XVII, figs. 4-6 ; Plate III, fig. 5. 



Proc. Am. Acad. Arts and Sci. Vol. XXVII, p. 41. 



Hyaline, becoming tinged with brown. Perithecium more or less inflated, narrowed towards 

 the broad, blunt, often symmetrically rounded apex, becoming more or less suffused with brown, 

 projecting outward from the receptacle. Outer appendage simple, tapering, its base made up of 

 three short, superposed, conspicuously inflated cells constricted at the blackened septa, the distal 

 portion more remotely septate, not inflated or constricted ; the inner appendage rises from a 

 basal cell, nearly as large as that of the outer, which gives rise to two simple, hardly divergent 

 branches, one to three of the basal cells of which are inflated as in the outer appendages. 

 Receptacle normal. Spores, 50 x 4.5 /jl. Perithecia, average, 90 x 37 /x (largest, 110x50/*). 

 Appendages, longest, 185 Total length to tip of perithecium, 150-200 



On Brady cellus rupestris Say, South Dakota (Aldrich), Kittery Point, Maine, and Waverly, 

 Mass.; Newport, R. I. (Richards). 



This very pretty and well marked species appears to be not uncommon on the above men- 

 tioned host, which is probably identical with the beetle on which the original types were found ; 

 although this was, by an oversight, stated to be a species of Bembidium. It is distinct from all 

 other species in the character of its appendages, and could not be mistaken for any described 

 form unless, perhaps, L. Philonthi, to which it bears a slight superficial resemblance. 



Laboulbenia compressa Thaxter. Plate XIV, figs. 1-2, 11. 



Proc. Am. Acad. Arts and Sci. Vol. XXVIII, p. 165. 



Pale yellowish. Perithecium becoming tinged with olive-brown, inflated, the lip cells com- 

 pressed to form an evenly rounded, narrow, prominent apex, which is commonly bent slightly 

 outward, and blackish brown except about the pore, which is external and lateral. Outer 

 appendages simple or once branched above its sub-basal cell, the lower cells slightly inflated, the 

 branches straight and tapering. From the inner basal cell arise two branches, which may be 

 simple or once branched, the sterile branches like the outer appendage. Receptacle normal, the 

 basal cell usually curved. Spores, 50 x 3.7-4 fi. Perithecia, 85-100 x 30 p. Appendages, 

 longest, 150-200 fi. Total length to tip of perithecium, 175-260 /j,, average, 210 /x. 



On Anisodactylus baltimorensis Say, Kittery Point, Maine. 



This small species in its typical form is hardly to be confused with any other by reason of 

 its narrowly pointed perithecium ; but specimens are sometimes found which indicate that it is 

 very closely related to L. filifera, of which it may possibly prove to be a variety. It is almost 

 invariably found at the base of the middle pair of legs of its host, usually at the right, rarely 

 on the elytra, and is not very common. The spores are remarkably long and slender in pro- 

 portion to the size of the perithecium. The hosts affected were found under stones about muddy 

 ponds. 



