206 PROCEEDINGS OP THE AMERICAN ACADEMY. 



Laboulbenia tortuosa nov. sp. 



thecium with hardly more than the tip free, relatively Bmall, ex- 

 ternally suffused with Bmoky brown and concave through the presence of 

 a well defined subtermioal hunch, above which the somewhat pointed 

 well defined outwardly oblique blackish-brown tip is abruptly differen- 

 d, the lip-edges pale brown translucent. Receptacle verj pale red- 

 dish or yellowish, variously bent, sometimes ut right angles or at an 



i forty-five d< grees al cell II ; cells I and II Btraighl or more 



frequently cell II curved .strongly, while there is often :i less pronounced 

 curvature in the opposite direction immediately above it. In6ertion-cel] 

 horizontal, about opposite the external hunch of the perithelium. Outer 

 appendage consisting of a very large basal and somewhat broader Bub- 

 basal cell, the two commonly as broad as or broader than any portion of 

 the receptacle with which they are concolorous ; the upper outer ai 

 of both cells marked by the black insertion of a Bhorl simple branch, usu- 

 ally broken off, the Bubbasal cell surmounted by a Bmall flatfish cell which 

 bears a simple terminal branch with blackened base like those developed 

 laterally below it: the inner appendage consists of a very Bmall basal 

 cell which usually produces directly a pair of relatively large antheridia 

 with inflated venters and In-own necks. Perithecia 85 27 p. Total 

 length to tip of perithecium about 275 p. Appendage, to upper blackened 

 septum 50 /i, by 28 y. wide. 



On Pachyteh-s tvslitcvnx Horn. V. S. National Museum, Arizona. Along 

 the adjacent inferior margins of the thorax and prothorax, on left side. 



Laboulbenia Trichognathi nov. Bp. 



Perithecium free, generally straight, long, narrow and of nearly equal 

 diameter throughout to the base of the rather abruptly differentiated tip, 

 (sometimes however shorter, stout and slightly inflated,) pale yellowish 

 or becoming rather deep, evenly translucent smoky brown ; the basal wall- 

 cells forming a very Bhort scarcely noticeable stalk ; the tip obliquely black 

 below the rather coarse and prominent hyaline lips. Receptacle gener- 

 ally very long and Blender, pale yellowish, the basal cell tinged with 

 brown ; cells I V and V amber or of ten becoming wholly amber-brown or 

 Bmoky brown; cells IV and V large, prominently marked by Bhorl 

 transverse lines or patches which are less numerous and distinct on the 

 other cells. Insertion-cell carried out free from the perithecium by the 

 enlargement of cell V. well differentiated, Mack. Outer appendage con- 

 sisting of a series of obliquely superposed cells three to ten in number 



