226 THAXTER. 



perithecium, as well as the usual secondary receptacles, but also cer- 

 tain accessory cells which give rise to branches or perithecia which are 

 thus clustered in the mid-region so closely, that their origin is not 

 easily determined. The primary branches are less distinctly fusiform 

 than is represented in the figure just mentioned, and bear distally a 

 smaller number of branchlets, seldom more than two or three, while 

 there is not the slightest indication of a terminal compound antheri- 

 dium such as Spegazzini describes. On the other hand there are pres- 

 ent from two to six or seven specialized antheridial branches, which 

 arise in the mid-region, shorter than the primary ones, typically simple, 

 and bearing a single well marked terminal simple antheridium of the 

 usual type. 



Cucujomyces Diplocoeli nov. sp. 



Basal cell of the receptacle dark translucent brown, distally spread- 

 ing, but slightly overlapping the subbasal cell, which is rather small 

 and normally gives rise to a primar}^ perithecium and appendage; the 

 latter rather stout, the basal and sometimes the subbasal cell often 

 more or less swollen; consisting of usually six or seven cells, tapering 

 somewhat distally. Secondary receptacles hyaline, usually' four or 

 five celled, with a tapering three- to four-celled termination, recurved 

 and sometimes meeting to form a complete circle of cells around the 

 foot: the branches hyaline, simple, relatively short, tapering and stout, 

 one or more of the inner usually terminated by an antheridium, or 

 bearing an antheridial branchlet subterminally; the basal cell giN'ing 

 rise to a secondary branch similar to the primary, or to a perithecium, 

 several of which may develop, especially if the primary one is injured 

 or aborted. Perithecium relatively large, the stalk-cell long, stout, 

 rigid, straight or slightly curved, hyaline and often bulbous just above 

 its hyaline insertion; otherwise opaque throughout, the opacity in- 

 volving the inner basal cell; the broad, horizontal, somewhat irregular 

 upper margin of which contrasts with the paler venter: the large 

 secondary stalk-cell and the two small basal cells hyaline or paler; 

 the region Ijroader than the stalk-cell, and narrower than the venter, 

 which is abruptly broader above it. Perithecium nearly symmetrical, 

 broadest just below the mid-region, dark, rich yellow-brown, punctate- 

 mottled, with a distinct tendency to a transverse arrangement; the 

 distal half darker, almost truncate-conical; the flatfish extremity 

 hyaline-edged, with minute papillae on. either side. Spores about 

 SOX 3 m. Perithecium: stalk 100-220 X 7 ju, the bull)ous base 



