MONOGRAPH OF THE LABOULBENIACEiE. 



287 



Chitonomyces paradoxus (Pcyritsch). Plate VIII, figs. 17-21. 



Hi imatomyces paradoxus Peyritsch, Sitz. d. k. Acad. d. Wissen. Bd. LXVII, p. 251 ; Wien, 1873, Plate HI, figs. 35-39 ; 



Winter, Die Pilze Deutsehl. II, p. 525, p. 920, fig. 5; Sorokin, Veg. Par. of Man, ete., p. 425, Plate XXXII, figs. 763, 

 770; Saccardo Nylloge, Vol. VIII, p. 915; Berlese, Malpighia, Vol. Ill, p. 60; Thaxter, Proe. Am. Acad. Arts and 

 Sci. Vol. XXVII, p. 32. 



Pale straw color becoming tinged with amber brown. Perithecium asymmetrical, the irregu- 

 lar lip-cells lateral and internal, the sub-terminal wall-cells of one of the external series 

 produced to form a pointed terminally curved outward born-like projection ; a prominent ridge 

 extending transversely on the left side from about the centre of the perithecium aoross the sub- 

 terminal cell of the receptacle. Receptacle of the usual form, the basal cell large, the sub-basal 

 cell flattened, the terminal and sub-terminal cells projecting almost wholly free beside the peri- 

 thecium. Spores strongly curved, fusiform, 65 x 7 p. Total length to tip of perithecial horn 

 about 225 \x. ; to tip of receptacle, 150-185 /x. Greatest width, 60-75 yu. 



On Laccophilus maculosus Germ., New England ; on Laccophilus sp., Kansas (Barber) ; on 

 L. minutus Sturm., and L. hyalinns Dej., Europe (Peyritsch). 



This species, which is the largest of the genus, occurs invariably on the outer margin of the 

 left elytron, somewhat beyond the middle, where it grows in groups of from two to half-a-dozen, 

 and is very easily seen from its large size. It is not uncommon, and is not to be confused with 

 any other species from the terminal, horn-like outgrowth of its perithecium. 



Chitonomyces appendiculatus Thaxter. Plate XXVI, figs. 25-26. 



Heimatomyces appendiculatus : Proe. Am. Acad. Arts and Sci. Vol. XXVII, p. 31. 



Becoming faintly brownish. Perithecium tapering to a rather sharp apex, curved strongly 

 outward, hunched externally and bearing a straight, sub-clavate, one-celled, brownish appendage 

 arising externally some distance below the apex, projecting outward and upward at an angle of 

 about 45°. Basal cell of the receptacle rather narrow, twice as long as the squarish sub-basal 

 cell. Spores, 32 x 3 p. Perithecia, 55 x 15 fi to 75 x 22 fi. Basal and sub-basal cells, 30-45 /m 

 in length. Perithecial appendage, 30-33 x4/*, Total length to tip of perithecium, 100-130 fi. 

 Greatest breadth, 30-36 ft. 



On Laccophilus maculosus Germ., Connecticut. 



A rare species, confined to the anterior pair of legs of its host, and distinguished at once 

 by its clavate perithecial appendage, which corresponds to the similar horn-like projection from 

 the perithecium of C. paradoxus, but is very different in form and in its relation to the other 

 parts of the perithecium. 



Chitonomyces distortus Thaxter. Plate XXVI, figs. 29-30. 



Heimatomyces distortus . Proe. Am. Acad. Arts and Sci. Vol. XXX, p. 477. 



Pale yellowish, more or less clavate in general form. Perithecium inflated, its external mar- 

 gin strongly curved, becoming abruptly constricted below a long, slender, tubular, terminal 



