THAXTEU. — ARGENTINE LABOULBEXIALES. 213 



from tlu' end of tlie appi'iidajic Its hyplia-liko receptacle is even 



more strikintj tlian that of A'. TrichojAcrophihts, from its greater 

 length and more evenlv cylindrical form. 



't»' 



Ecteinomyces Thinocharinus nov. sp. 



Wholly hyaline. The receptacle usually tapering continuously 

 from above to the minute foot, its axis continuous with that of the 

 perithecium and consisting of from six to twelve more or less flattened 

 cells, which may occasionally be divided longitudinally; the foot-cell 

 of some individuals developing an upcurved appendage, deeply 

 blackened except along its inner margin, of variable length, thicker 

 and bluntly rounded at its tip. Perithecium clearly divided into a 

 nearly symmetrical oval venter and a long, stout, nearly straight, 

 isodiametric neck-portion, the base of which is subtended on the outer 

 margin by a more or less distinct prominence formed by the slightly 

 protruding extremity of the outer basal wall-cell; the tip hardly 

 distinguished, tapering but slightly to the blunt symmetrical apex. 

 Appendage slightly divergent, consisting of six or more superposed 

 cells, the basal larger, angular, in contact on its inner side with the 

 small basal and stalk-cells of the perithecium; the terminal cells 

 bearing a group of rather coarse branches, once or twice branched, 

 the ultimate branchlets not reaching to the tip of the perithecium. 

 Spores, in perithecium, 20X2.5 n. Perithecia 120-130X23-27 >. 

 Receptacle 55-65 /x. Foot-appendage 18 n. Appendage 35-50 /z, 

 its branches 75-90 /x. 



On the abdomen etc. of Thinocharis exilis Er., Temperley, No. 2004, 

 and Palermo, No. 1701. 



The curious black outgrowth from the foot of this species, occurs 

 in about half the specimens; but while in these it is well developed, 

 there is no trace of it in the others, even when full\' matured and 

 growing in the same position. 



Ecteinomyces Copropori nov. sp. 



Hyaline or faintly tinged with yellowish. Receptacle consisting of 

 from ten to twenty superposed cells some of which may become 

 irregularly divided by one or two longitudinal septa, the cells usually 

 flattened, often irregular, the basal cell subtriangular and deeply 

 sufiused with blackish brown above the small foot. Appendage at 

 first not distinguished from the receptacle and continuous with it, 



