274 THAXTER. 



On the femur of the anterior leg of Tomodcrus sp. No. 2590, Kamerun, 

 West Africa. 



This small and compact form is not to be confused with any of the 

 described species, and is characterized by its simple short undiffer- 

 entiated appendages, and peculiarly shaped stout sessile perithecium. 

 The male is especially characteristic from the relatively great size of 

 its erect antheridium, which seems usually to possess but two anther- 

 idial cells. 



DiMEROMYCES Anisolabis Thaxter. 



This species has been found, since its original publication, on 

 EiiborcUia Janeircnsis Dohrn, Nos. 2257 and 2263, from Independencia 

 and Ceara Mirim, Amazon, in the Mann collection, M. C. Z., the only 

 evident difference from the type appearing in the more prominently 

 geniculate habit of the basal cell of the low^er secondary appendage. 

 Specimens have also been examined on Eubor cilia from the Solomon and 

 Fiji Islands, Nos. 3015, 3017 and 3018 also collected by Mr. Mann. 

 This last form is smaller than the type, the basal cell of the primary 

 appendage always producing two branches, distinguished by dark 

 septa, radially placed. The lower secondary appendage also produces 

 two branches from its basal cell in about half the individuals. 



Dimeromyces Prorei nov. sp. 



Male individual slender, hyaline; the basal much longer than the 

 obliquely separated subbasal cell; the basal cell of the appendage 

 somewhat smaller, separated from the erect three-celled free portion 

 by a dark septum. Antheridium usually single, somewhat divergent, 

 the venter rather well distinguished from the neck and tube, which is 

 curved outward. Total length to tip of appendage, including foot 

 50 /x. Antheridium 20 X 5 ^i. 



Female individual rather short and stout. Basal cell somewhat 

 triangular; subbasal much smaller, flattened, triangular; bearing 

 anteriorly the short externally rather prominent basal cell of the 

 secondary appendage; which is separated from the free portion by a 

 constriction and dark septum, above which the first three cells are 

 usually somewhat, differentiated, tinged with smoky brown, the lowest 

 especially, strongly convex below on the inner side, so that the append- 

 age diverges; the distal portion more slender, hyaline and tapering. 



