THAXTER. NEW LABOULBENIACE^. 197 



less sufTused with brown. Spores about 65 X 45 /x. Perithecia 120-165 

 X QO fi. Total length to tip of perithecium 225-300 //, ; to insertion-cell 

 170-240 ^w. Appendages, longest 100 /a. 



On Pseudomascus nigrita, Fab., Paris Museum, No. 201, Mongolia. 

 Near upper inferior margin of prothorax on left side. 



Laboulbenia punctata nov. sp. 



Perithecium free, straight, translucent brown becoming almost opaque, 

 except the broad short neck formed by the basal wall-cells, which is 

 nearly hyaline and as broad as the ascigerous portion ; the lower half or 

 more of the suffused body of the perithecium covered with irregular 

 more or less rounded dark spots, irregularly distributed, the lower 

 larger; the tip rather abruptly distinguished, narrow, black, distally 

 translucent. Receptacle rather short and stout, the basal cell rather 

 narrow and hyaline or yellowish, contrasting; the rest of the recep- 

 tacle subtriangular and deeply suffused ; cell VI paler, cells III and IV 

 side by side, nearly vertical, almost opaque, except the upper edge ; 

 cell V very large, subhemispherical, becoming opaque ; all the suffused 

 cells where not opaque, more or less conspicuously and rather coarsely 

 punctate. Insertion-cell very broad, black, close beside the base of the 

 perithecial stalk. Outer appendage consisting of a large triangular basal 

 cell externally blackish brown, forming the base of a series of (eight 

 or less) much smaller cells obliquely superposed, which curves toward 

 the perithecium ; each cell producing externally a single simple erect 

 branch, rather closely septate, the (usually six) septa dark, constric-ted, 

 the terminal cell short with rounded apex. The inner appendage con- 

 sisting of a basal cell giving rise to a series of cells on either side like 

 that of the outer appendage, but shorter, one to three of the lower 

 branches consisting of a single cell bearing terminally a long slender 

 flask-shaped brown antheridium. Perithecia 200-220 X 40 ^u, ; smaller 

 130 X 48 ^ (including the neck about 35 /x). Total length to tip of 

 perithecium, average 350 /x ; to insertion-cell 145 ^u; greatest width 75 /x. 

 Appendages 1 10-1 30 /x. 



On Galerita sp., Paris Museum, No. 74, Venezuela, No. 136, " South 

 America." On head. 



Laboulbenia punctulata nov. sp. 

 Perithecium about three fourths free, dark brown translucent, curved 

 toward the appendages which cross it obliquely, the broad short fiat- 



