MONOGRAPH OF THE LAPOULBENIACEiE. 



271 



together with the antheridiuin, becomes suffused with brown. Spoi-es, 40-45 X 3.7 p. Perithccia, 

 165-185 x 50-55 p. Stalk-cell of pcrithecium, 65-90 x 26-33 fi. Antheridiuin, 32 x 18 fi. Re- 

 cejjtacle, 37-45 x 18 p. Total length to tip of pcrithecium, 315-370 fx. Total length of anthe- 

 ridial appendage 35-40 fi. 



On Bledius rubiyinosus Er., Texas. 



Distinguished from the preceding species by its pale yellowish color, conical, nearly straight 

 perithecium, and by the elongated basal cells of the latter. 



The two varieties of this form represented in figs. 5 and 6 occurred together on the abdomen 

 of the same individual ; and though the blackened form may be taken as the type, it is improb- 

 able that the two are distinct, since similar variations in color are common in other cases. 



CANTHAROMYCES Thaxter. Plate V, figs. 11-24. 



Proc. Am. Acad. Arts and Sci. Vol. XXIV, p. 9; I.e. Vol. XXVIII, p. 161. 



Receptacle consisting of two superposed cells, the distal producing one or more stalked peri- 

 thecia, and one or more antheridial appendages. Perithecia sub-conical, borne on a single 

 stalk-cell surmounted by three basal cells. Antheridial appendages consisting of two superposed 

 cells, terminated by one or two cells which may bear several branches, the sub-basal cell 

 divided into two parts longitudinally or obliquely, one of which (the antheridium) is subdivided 

 by anastomosing septa into numerous small cells. Spores once septate. Trichogyne 

 filamentous. 



This genus is very closely allied to the preceding, differing only in the fact that the anthe- 

 ridium is not terminal, but lateral, on an appendage terminated by sterile branches and destitute 

 of the spine-like process characteristic of Haplomyces. The general relations of its parts are 

 otherwise similar, and its antheridium possesses the same characteristic irregularly honey- 

 combed structure. In C. Bledii, the only species abundant material of which has been examined, 

 two or even three perithecia may arise from the same receptacle, and very rarely two append- 

 ages. In the absence of fresh material, except in the case of the very minute C. pusillus, the 

 exact nature and relations of the spermatic cells remains a matter of doubt. In one specimen 

 of C. Bledii, a well-developed trichogyne is present, rather copiously branched and bearing no 

 resemblance to the greatly reduced type characteristic of Peyritschiella and its allies. As in 

 Haplomyces, there appear to be eight ascogenic cells, but this point has not been definitely 

 determined. The species all occur on beetles belonging to the Staphylinidiac. 



Cantharomyces Bledii Thaxter. Plate VII, figs. 17-24. 



Proc. Am. Acad. Arts and Sci. Vol. XXIV, p. 10. 



Color pale yellowish. Perithecia sub-conical, nearly symmetrical, basally inflated, borne on 

 a well-developed stalk-cell surmounted by three smaller basal cells, one to three arising from 

 the sub-basal cell of the receptacle. Receptacle consisting of a basal and somewhat larger sub- 

 basal cell ; often deeply and broadly blackened externally and inferiorly, in which case it pro- 

 jects laterally. Appendage usually single, rarely two arising from the same receptacle ; 



