TH,\XTER. — ARGENTINE LABOULBENIALES. 209 



On the legs of a small carahid beetle resembling Casnonid. -Iiijuy, 

 Northern Argentine, No. 1430, Miisco Xacional. 



This species is most nearly allied to I{. Jdvcuiicu.'i, from which it is 

 distinguished by its more slender, copious and closely appressed 

 appendages, which conceal the axis of the receptacle distally, as well 

 as by the somewhat pointed apex of its perithecium. The material 

 includes two small specimens not more than 200 /j. in l(>ngth. 



Scaphidiomyces nov. gen. 



Axis consisting of a primary receptacle of two superposed cells, 

 the subbasal bearing a primary branched appendage terminally, and 

 subterminally a secondary receptacle consisting of an indeterminate 

 series of superposed cells, which give rise alternately to stalked 

 perithecia and to branches similar to the primary appendage. An- 

 theridia simple, terminal on short branches. Perithecia normal. 



This type, of Avhich two other species are known on scaphidians, 

 from the Argentine and West Africa, appears to be related to the 

 Compsomycetaceae although the number of spores in the asci has 

 not been definitely determined. Some of the branches of the second- 

 ary receptacle when young, show the same peculiar oblique septation 

 characteristic of one of the appendages in Compsomyces; but this 

 may not be significant, and the perithecium has but a single stalk-cell ; 

 the alternate production of branches and perithecia, and their associa- 

 tion on the indeterminate secondary axis, have no parallel in any 

 other genus. The characters of this type are nevertheless not clearly 

 defined, and a definite conception of its limitations cannot be arrived 

 at until sufficient material of other species is available. 



Scaphidiomyces Baeocerae nov. sp. 



Colorless, the perithecia becoming amber-brown at maturity, 

 rather short and stout, stomewhat inflated, subsymmetrical, narrowed 

 distally to the broad tip; its apex broad, bluntly- rounded or sub- 

 truncate; the basal cells similar, rather small, projecting slightly; 

 the region hardly distinguished from the body, and concolorous with 

 it: the stalk-cell hyaline, but slightly longer than broad, narrower 

 below. Basal cell of primary receptacle longer than broad, narrowed 

 and sufi'used with blackish brown just above the foot. The primary 

 appendage consisting of two to three superposed cells, l^earing dis- 

 tally short few-celled branches and branchlets. Secondary receptacle 



