240 THAXTER. 



pointed. Total length to tip of appendage, including foot, 05-70 )u. 

 Terminal cell of appendage 11-13 X 5.7 ju. Antheridium about 

 44 X 13 M- 



Female iiuUvidual compact, partly suffused with blackish l)rovvn. 

 Receptacle consisting of usually four cells very obliquely superposed 

 and somewhat irregular: the basal extending upward posteriorly more 

 than half its length, bulging distally above an external blackish brown 

 suffusion, the subbasal small and narrow, nearly vertical, bearing a 

 two-celled, deeply sufPused, short, broad appendage, the narrowed 

 extremity of which is bent abruptly inward ending in a hyaline papilla: 

 the fourth cell bearing a rather short curved hyaline cylindrical uni- 

 cellular appendage ; the primary appendage consisting of a subtriangu- 

 lar subtending basal cell and two free cells; the lower small, flattened, 

 concolorous ; the upper similar to that of the male, deep reddish brown 

 and ending in a darker knob-like apiculate termination subtended by 

 a dark transverse line (possibly a septum?). Perithecium erect, the 

 stalk opaque except its hyaline base, rather abruptly and clearly 

 distinguished from the ascigerous portion; which is strongly inflated, 

 somewhat more convex on the inner side, opaque or deeply suffused 

 below, transversely mottled above and translucent; the distal half 

 subconical; the termination somewhat oblique, subtended by deeper 

 suffusions, one of the lips on one side hyaline and slightly projecting. 

 Perithecium, stalk-portion 48-58X20-22//: ascigerous portion 

 75 X 38-42 fjL. Receptacle 48 X 38 /x. Terminal cell of primary 

 appendage 15 X 7.5 /x: upper secondary appendage 38-50 X <)ju: 

 lower 28 X 19 /x. Total length to tip of perithecium 190 ju. 



On the inferior tip of abdomen of Dhonya sp. Mindanao, P. I. No. 

 2389 (^Yebber Coll.) 



I am indebted to Professor Oakes Ames for the host of this very 

 peculiar and interesting form, which is so unlike any other thus far 

 known that it cannot be mistaken. In the general form and coloration 

 of its perithecium it bears a most remarkable resemblance to Ciini- 

 jomyces Diplocoeli and C. curtipes. Both secondary appendages are 

 anomalous, especially the lower which might be mistaken for a suft'used 

 compound antheridium. The. knob-like termination of the primary 

 appendage may prove in both sexes to be a minute cell. 



Dimeromyces Amazonicus nov. sp. 



Male indiridual hyaline, slender, erect, the receptacle consisting of 

 three cells obliquely superposed; the basal longer; the width nearly 



