278 



THAXTER. — MONOGRAPH OF THE LABOULBENIACE^C. 



Eucantharomyces Africanus. Plate XXXIII, figs. 35-38. 

 Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 418. April, 1900. 



Very similar to E. CalUdoe. Amber-brown. Perithecium large subfusiform, the margins generally 

 more or less distinctly corrugated, often marked by fine transverse striations which may be wholly absent, 

 the tip relatively small and rather abruptly distinguished, the inner lip-cell well defined, projecting beyond 

 the other lip-cells so that the apex usually appears oblique, asymmetrical and slightly sulcate; the basal 

 cells somewhat shorter than the stalk-cell, their lower septa nearly equal and symmetrical, both slightly 

 oblique. Receptacle of medium size, the basal cell distally enlarged lying beside the subbasal cell and 

 extending to the stalk-cell of the perthecium. Appendage short, the two basal cells rather small and 

 nearly equal in length, consisting of three rows of six, four, and four cells respectively, the discharge-tube 

 slightly curved, abruptly nearly erect, distally somewhat narrower and conical when young, the marginal 

 cell extending nearly to the base of the subbasal cell. Spores 48 X 5 p. Perithecia 275-325 X 45-50 p, 

 the stalk-cell 100-130 p, the basal cells 75-100 p. Receptacle 100 X 26 p. Appendage 100 p. Antheri- 

 dium 45 X 21 p, the discharge tube 21 p. Total length to tip of perithecium 575-600 p. 



On Callida Natalensi.t Hope, Hope Coll. No. 274, Natal, Africa. On Callida sp., Brit. Museum, 

 No. 550, Angola, Africa. On elytra. 



This species, which is closely allied to E. Callidw may be distinguished by the different number of an- 

 theridial cells in its antheridium, the stalk-cell of which is differently related to the receptacle, as well as 

 by the different relation which the stalk-cell bears to the basal cells of the perithecium. The latter also 

 has a characteristic fusiform outline from the stalk-cell to the tips. Both figures are taken from the Natal 

 material. 



Eucantharomyces Madagascarensis Thaxter. Plate XXXVIII, figs. 24-26. 

 Proc. Am. Acad. Arts and Sci., Vol. XLI, p. 30G. July, 1905. 



Rather pale straw-colored. Perithecium large, subcylindrical, tapering very slightly distally and 

 basally, the rounded tip rather abruptly distinguished, and subtended by more or less distinct elevations; 

 the trichophoric cell short, prominently rounded, but not extending beyond the lip-cells and rendering the 

 apex subsymmetrical ; the base not differentiated from the body of the receptacle, the cells relatively 

 short, not extending down beside the stalk-cell, from which they are rather clearly distinguished: 

 stalk-cell elongate, tapering below. Basal and subbasal cells of the receptacle of about equal length, 

 the former about half as broad as the latter, and extending to the base of the stalk-cell of the perithecium. 

 Basal cell of the appendage somewhat larger than the subbasal, slightly overlapping the subbasal cell of 

 the receptacle, the marginal cell not prominent below the discharge-tube which is curved outward, some- 

 times horizontally; the antheridial cells in three rows of seven, seven, and five cells respectively. Spores 

 about 60 X 4 p. Perithecium, including basal cells, 385 X 60-70 p, the stalk-cell 275-290 X 40-55 p. 

 Receptacle 165 X 35-45 p. Antheridium, total length 130-150 X 30-35 p, above basal cell 75 p. 



On elytra of Callida sp., Madagascar; Hope Collection, No. 273. 



The material of this species being very old has only regained its turgescence after the prolonged 

 action of glycerine. It appears to be unlike any of the other species on Callida, and next to E. Catas- 

 copi, is the largest known form. It is distinguished by its slender form, the elongate stalk-cell of its 

 perithecium, the tip of which is abruptly distinguished, and by the characters of its antheridial appendage. 



Eucantharomyces Casnoni^e Thaxter. Plate XXXVIII, figs. 4-6. 

 Proc. Am. Acad. Arts and Sci., Vol. XXXV, p. 417. April, 1900. 

 Perithecium relatively large, rather long, often slender, inflated below, tapering to the relatively nar- 

 row blunt apex; its outline corrugated through the presence of from seven to eleven elevations varying in 

 prominence some of which may become transversely striate at maturity, the basal cells elongated and as long 

 or nearly as long as the rather stout stalk-cell. Receptacle relatively small. The basal and subbasal 

 cells of the appendage relatively small and stout, nearly equal, or the latter somewhat smaller, the marginal 



