NEW DIMOR^HOMYCETEAE. 221 



two- (or ? three-) celled, the distal cell distinguished by a dark sep- 

 tum, flask-shaped, its distal third forming a narrow terminal point. 

 Antheridium relatively large, the stalk well defined, the rather short 

 neck slightly curved outward or sidewise. Antheridia 35 X 9 ju. 

 Appendage 20 fx. Receptacle 22 /x. Total length to tip of anther- 

 idium 75 fi. 



Female individual yellowish, becoming tinged with brownish. 

 Secondary axis of from foiu* or five to ten cells oblicjuely superposed, 

 clearly margined below by the basal cell, the series diverging at an 

 angle of somewhat less than 45°. Primary appendage similar to that 

 of the male, three-celled. Secondary a pendages two or three to 

 seven, mostly dark red-brown, with one or two septa, the lower 

 sometimes dark; the extremity abruptly narrower paler and bent. 

 Perithecium falcate, curved strongl\' outward o\er the secondary 

 appendages; the stalk short and not distinguished from the ascigerous 

 part; which is broadest in the middle; the tip not distinguished 

 except by a deep red-brown suffusion along its concave exterior 

 margin; the apex undifferentiated except for a slight indentation 

 below the slightly prominent inner lip. Perithecia 95-105 X 22-23 fx. 

 Secondary receptacle 40-66 X 13 /x. Primary appendage 20 X 9 /i 

 at base: secondary 50-58 X 8 /x. Total length 130-144 /x to tip of 

 perithecium. 



On the margin of the abdomen near the tip of Eleusis (Isomalns) sp. 

 No. 3128, Los Bafios, Luzon, Philippine Is. 



The male of this species has been seen only in association \<^ith the 

 female and viewed edgewise, so that it is uncertain whether the 

 appendage consists of two or three cells, or what the form of the re- 

 ceptacle would be in lateral view. The form is well distinguished 

 by the peculiar compressed terminations of all the appendages in 

 both sexes, and by the falcate habit and external distal red-brown 

 suffusion of the perithecium, which is single in each of the four speci- 

 mens examined, arising close to the primary appendage. 



Dimorphomyces Grenadinus nov. sp. 



Male individual nearly hyaline, rather slender, the basal cell very 

 small the subbasal long and narrow, about equal to the basal cell of 

 the three-celled appendage, the distal cell of which is subulate. An- 

 theridium relatively large, the stalk-cell long and narrow, free only 

 externally, the venter well distinguished from the \-ery long slender 



