iQ2o] ♦ THAXTER— FUNGUS-PARASITES . 3 



Enterobryus may be assumed to belong to the Phycomycetes, 

 evident affinities with other members of this class are lacking. 



Cantharosphaeria, nov. gen. — Perithecia superficial, scattered, 

 subdimidiate, membranaceous, ostiolate, the ostiole surrounded by a 

 tuft of hairs. Asci 8-spored, aparaphysate ; spores hyalodidymous. 



Cantharosphaeria chilensis, nov. sp. (figs. 1-5). — Perithecia 

 associated with a rather scanty mycelium of thick-walled, brown, 

 branching hyphae; subhemispherical, blackish brown, slightly 

 roughened, seated on the chitinous integument among the bristles 

 of the host, about 70-80 /x by 40-45 /i ; the apical hairs usually 

 closely aggregated about the ostiole, 35 X 2 .5-3 /x, about a dozen in 

 number, rather coarse, irregular, simple, and brown. Asci rather 

 short and stout, sporiferous to the small, short, rather abruptly 

 narrower base, distally rounded, 28X10^; ascospores hyaline, the 

 septum median with a very slight constriction, or the basal segment 

 slightly shorter and narrower, subdistichous, 12-14X4.5-5 /x- 



On the elytra, legs, etc., of a cucujid beetle found in decaying vegetable 

 material, Corral, Chile. 



A single specimen of the peculiar host which bears this fungus was collected 

 in decaying vegetable material at Corral. It is evidently a beetle of somewhat 

 unclean habits, since it bears numerous stalked mites, and is covered with a 

 thin film of foreign matter such as one often sees on species of Silphidae. The 

 perithecia are numerous, and appear under a hand lens as black points scattered 

 irregularly over the surface (fig. 1), the individual perithecia nestling among 

 the peculiar hooked spines of the host as shown in fig. 3, and associated with a 

 variably developed, brown, thin mycelium of thick-walled branching hyphae 

 (fig. 2), which can hardly be called a byssus. The terminal hairs eventually 

 break off, exposing the evident ostiole in old specimens. The surface is 

 slightly roughened, and occasionally a hair may be seen projecting apart 

 from the group about the ostiole. 



I have concluded with reluctance to apply a new generic name to this type, 

 yet its close relationship to other genera does not seem at all clear. It probably 

 is not truly entomogenous, deriving its nutriment directly from the living 

 insect, as ip all the other types herewith described; and it is not unlikely that 

 it may obtain its necessary materials from the film of foreign matter which 

 covers the surface of its host. 



Termitaria, nov. gen. — General habit disciform, applanate 

 or hysterioid, orbicular or variously elongated according to position 

 of growth, sessile; consisting of a basal pseudocellular layer, 



