THAXTER. - 



MONOGRAPH OP THE LAB01 LBENIACEiE. 



281 



Kleidiomyces furcillatus nov. comb. Plate XXXVII, figs. 3 I 

 Monoicomyccs jurrillulus Thaxter, Proc. Am. Acad. Arts :uiil Sci., Vol. XXXVII, p. 24, June, 1001 . 



Receptacle consisting of two small cells which arc hardly distinguishable owing to a general blackish 

 browil Suffusion; producing on either side, from the basal cell, a stout blackened outgrowth, the two 

 forming a nearly symmetrical fork-like structure, the prongs of which are slightly curved inward and 

 slightly divergent. From near the base of these outgrowths, and between them, arise, apparently from 

 single basal cells on either side, stalked perithecia and appendages. Antheridial appendage rather 

 slender, shorter than the perithecia. Perithecia long and slender, straight, symmetrical, pale yellowish, 

 slightly inflated toward the base, tapering gradually to the blunt apex. Spores about 40 X 3 ji. Peri- 

 thecia 1:55 X 27 ;i. Outgrowth from the receptacle 110 X 12 /i. 



Near the tip of the abdomen of Alcochara repetita Sharp. Panama, Sharp Coll., No. 10'.)."). 



Only one of the three individuals obtained is in fairly good condition, but the species is so very peculiar 

 in appearance that it can hardly be mistaken for any other form. Owing to the great reduction of the 

 receptacle and its deep suffusion, it has not been possible to determine absolutely the exact origin of the 

 fork-like outgrowths which seem to come from the basal cell, as in Corctliromyccs Sfilici. 



EUHAPLOMYCES Thaxter. 

 Proc. Am. Acad. Arts and Sci., Vol. XXXVII, p. 25. June, 1901. 



Receptacle consisting of two cells, the upper bearing a free stalked antheridium and a stalked pcrithe- 

 cium. Antheridium conical, consisting of a single stalk-cell followed by a basal cell from which is sepa- 

 rated a group of smaller cells some of which (two or four?) extend upward and inward to form antheridial 

 cells: above these follow three external marginal cells, the lowest of which lies beside the antheridial 

 cells; the uppermost succeeded by a conical chamber which terminates in a pore, and extends downward 

 along the inner sides of the marginal cells to form a cavity into which the antheridial cells empty. Perithe- 

 cium resembling that of Haplomyces in the type. 



This genus appears to be somewhat closely related to Haplomyces, Cantharomyces and Camptomyces, 

 but the structure of its antheridium is essentially different from that of either of these genera. The num- 

 ber of antheridial cells is small, not more than four or five, and it is somewhat difficult to distinguish 

 them from the adjacent sterile cells. The passage for the discharge of the antherozoids seems to be 

 formed by the disorganization of more than one cell, and as may be seen in fig. 21 lies on the inner 

 (left) side of certain sterile cells; but distally occupies the whole tip. The antheridial cells, as indicated, 

 converge to the base of this cavity and empty into it, but this is shown in one instance only in the figure. 



Euhaplomvces Ancyrophori Thaxter. Plate XXXVII, figs. 19-21. 

 Proc. Am. Acad. Arts and Sci., Vol. XXXVII, p. 25. June, 1901. 



Receptacle small, the basal cell somewhat longer, nearly hyaline, tapering to the relatively small 

 foot; the subbasal cell becoming pale amber-brown. Antheridium, including its short stalk-cell, about 

 as long as the receptacle, becoming pale amber-brown, tapering to a pointed apex. Perithecium becom- 

 ing pale amber-brown, relatively large, thick-walled, considerably and abruptly inflated above the basal 

 cells, somewhat asymmetrical, tapering rather evenly to the blunt apex; the stalk-cell long, thick-walled, 

 slightly curved, nearly hyaline, distally somewhat broader, not distinguished from the basal cells. Spores 

 about 40-45 X 3.5 y.. Perithecia 180-200 X 72-82 /<; the stalk-cell 110-120 X 28-30 fi. Antheridium, 

 including the stalk-cell, 55-G5 p.. Total length to tip of perithecium 3G0 /«. 



On the superior surface of the abdomen of Ancyrophorus aureus. Dumfriesshire, Scotland, Sharp 

 Collection, No. 1091. 



CANTHAROMYCES Thaxter. 



A single British species has been added to this genus which is evidently most closely allied to Hap- 

 lomyces and Eucaniharomyces. No further data have been obtained in regard to the distribution of the 



