NEU' LAHOrLHKMALKS. 221 



is usually well marked; basal colls sniaH, the region tlistinj^^uislu'd 

 above the secondary stalk-cell by a rather abrupt depression. Peri- 

 theciuni straij;ht, erect, or rarely very slightly divergent outward, the 

 outer margin straighter: the venter-region more than twice as long 

 as the rest of the perithecium in well developed individuals, hardly 

 inflated, pale brownish yellow and uniform in width with the basal 

 cell region: the neck-, tip- and apex-region concolorous, tapering; 

 the apex very short, its small blunt extremity slightly roughened. 

 Spores 45 X 3.5 m- Perithecium 120-140 X 20-22 m, including basal 

 cells. Receptacle, to tip of axis of appendage, 100-120 )Li; greatest 

 width in region of paunch-like protrusion, 28-32 /x. Total length to 

 tip of perithecium 190-225 ju. 



At the tip of the abdomen of a species of Qiii'diu,s\ Corral, Chile. 

 No. 1522. 



This species is most nearly related to C. afropurpurcji.s-, the general 

 form of the perithecium, which lacks any terminal modification, being 

 similar. It is most readily distinguished by the paunch-like pro- 

 trusion in the region of the perithecial stalk-cell, and the opaque 

 suft'usion which extends nearly to the tip of the axis of the appendage. 



Corethromyces Andinus nov. comb. 



Sphalcroniyces AncUniis Spegazzini. Revis. d. 1. Laboul. Arg. p. 

 670. Ann. d. Mus. Nat. d. B. A. XXIX, 1917. 



Abundant material of this species was obtained at Corral and Con- 

 cepcion on QwcUm sp.. No. 1522. It appears to differ constantly 

 from C. Qucdionvchi, to which it is very closely related, in several 

 characters. The opaque suft'usion which, in the latter, does not quite 

 extend to the upper edge of the basal cell, the upper limit of the suffu- 

 sion being horizontal, or but slightly oblique, extends upward in the 

 present species so that it involves not only almost the whole of the 

 subbasal cell, but also the axis of the appendage nearly to its tip, its 

 inner margin only, being hyaline or translucent. The axis of the 

 appendage also diverges distinctly, and then curves toward the 

 perithecium, the short hyaline branches being crowded against it. 

 The conformation of the apex is also somewhat different, the outer 

 lobe being more clearly distinguished, and not characterized by the 

 even oblique curvature seen in that of C. Qvcdionuchi. In well 

 developed specimens of C. Andinus, which may have a total length 

 of 265 n, the perithecium, above the basal cells measuring 150 X 22 //, 



