264 PROCEEDINGS OF THE AMERICAN ACADEMY 



This extraordinary plant was found in a single locality near New- 

 Haven, and appears to be very rare, ten specimens only having been 

 observed. In large individuals the number of perithecia may reach 

 one hundred or more, in various stages of development. The tri- 

 chogyne is simple, growing downwards from the apex of the immature 

 perithecium ; but no sign of any antheridial appendage was seen on 

 the same pedicel, unless it is represented by the apical cell of the 

 latter, or its outgrowth, which appears, however, to be developed 

 after fertilization. It is also possible that the differentiation between 

 the sexes has led to their complete separation, and the male may be 

 represented by certain short-stalked bodies resembling very young 

 perithecia. The point where the trichogyne emerges is not, as in 

 Ziahoulbenia, the point which subsequently becomes the apex of the 

 perithecium; but, as is probably the case also in Cantharomyces and 

 perhaps other genera, becomes lateral as the latter develops. The 

 two pairs of appendages are doubtless protective and appear after the 

 perithecium has attained considerable size. The lateral outgrowths 

 from the base of the main body, or receptacle, are singular productions, 

 also doubtless protective, serving as cushions against sudden lateral 

 bending. 



HESPEROMYCES nov. gen. 



Perithecium asymmetrical : thrice transversely constricted, with an 

 abruptly conical, appendiculate apex : borne on two cells, one of which 

 is prolonged downwards to form a pedicellate connection with the 

 receptacle. Receptacle of three cells, one basal and two distal, from 

 the outer of which arises the antheridial appendage ; from the inner 

 (as a bud) the stalked perithecium. Antheridial appendage simple, 

 cylindrical, septate, with a single lateral row of tooth-like projections. 



Hesperomtces virescens nov. sp. 



Color wholly yellowish green. Perithecium very large : nearly 

 straight on the inside, rounded externally ; its three constrictions at 

 nearly regular intervals ; tapering slightly to the base and abruptly to 

 the often slightly bent, sharp apex ; the apex proper made up of two 

 sharp more or less evenly apposed, nearly equal projections, enclos- 

 ing the apical pore between them ; while lower down in a plane at 

 right angles to these are two more appendages placed laterally (the 

 perithecium and antheridial appendage being considered antero-pos- 

 terior) on opposite sides of the apex, finger-like, curved outwards and 



