174 PROCEEDINGS OF THE AMERICAN ACADEMY. 



of which several species are known to me on related hosts, has given 

 much difficulty; since the antheridia appear to be functional only at 

 the moment when the trichogyne is receptive, and the openings 

 through which the sperm cells appear to issue are soon obliterated; 

 the antheridial cells also losing the peculiar densely granular appear- 

 ance which at first distinguished them. It is only in very few speci- 

 mens that I have been able to make out these perforations through 

 which there actually seems to be a passage of sperm-cells of the usual 

 type. 



Cryptandromyces geniculatus nov. sp. 



Wholly hyaline. Receptacle straight, the basal cell becoming 

 broader distally, often longer than its greatest width; the subbasal 

 cell usually angular or subtriangular, slightly larger than the basal 

 cells of the appendage. Appendage slightly divergent, variabl}^ de- 

 veloped; sometimes distally elongate and tapering, but often rather 

 short and stout; consisting of usually three to five cells below the 

 antheridial cells, with evenly rounded lumens, the antheridial cells 

 above them, which may be as many as six in number, terminated by a 

 bluntly pointed, slightly incurved cell, or the appendage in some cases 

 becoming long slender and distally attenuated. Stalk-cell of the 

 perithecium slender, two or three times longer than broad, often 

 narrower subterminally; perithecium relatively large short stout, its 

 axis at an angle, sometimes at right angles, to that of the stalk-cell, 

 its inner margin often straight or concave, the outer strongly convex; 

 the tip hardly distinguished, sometimes slightly bent upward, the 

 obtuse apex minutely papillate or slightly sulcate. Spores relatively 

 large 28X3.5 (x. Perithecia 50-70X25-30 m; stalk-cell 20-26X8 m- 

 Receptacle 26-35X12-16 n. Appendage 50X9 ix, the more elongate 

 130 11. 



On the elytra etc. of Connophron nov. sp. Temperley, No. 2001. 



The material of this species is sufficiently abundant, and though I 

 at first suspected that it was a unisexual form and that the male had 

 been overlooked, a more careful examination shows that the indi- 

 viduals bearing perithecia are often paired. This host has been 

 kindly determined for me by Col. Casey. 



Synandromyces nov. gen. 



Receptacle consisting of two cells forming, in conjunction with 

 the basal cell of the appendage, a compact structure in which the 



