192 PROCEEDINGS OF THE AMERICAN ACADEMY. 



basal cell, separated by a straight horizontal septum from the small 

 triangular cell above, its perithecium and appendage closely approxi- 

 mated. 



Stichomyces Catalinae nov. sp. 



Perithecium rather stout, nearly hyaline; the basal cell-region well 

 developed, slightly broader than the base of the ascigerous region; 

 the latter becoming gradually and but slightly broader to the broadly 

 conical, symmetrical, or slightly bent, distal region, from which it is 

 distinguished by a slight double corrugation on one or both sides; 

 the apex small, often bent sidewise, rather abruptly distinguished, 

 symmetrical, rounded, hyaline and subtended by dark brown suffu- 

 sions which often appear like paired rings; the stalk-cell well dis- 

 tinguished, broader than long, distally bent abruptly upward from 

 its insertion which is lateral, from the distal end of the subbasal cell 

 of the receptacle. Receptacle deeply suffused with brown, except 

 its narrow hyaline base just above the small foot; the basal cell 

 broader distally, hardly twice as long as the somewhat broader sub- 

 basal cell. The appendage consisting of an axis of four superposed 

 cells not distinguished from the receptacle, and concolorous with it; 

 the subbasal cell bearing from its upper inner angle a group of 

 hyaline branches, which reach to or beyond the tip of the perithe- 

 cium; the terminal cell smaller, hyaline, and bearing a few hyaline 

 branches. Spores 20X1.5 /x (measured in perithecium). Perithecium 

 50-60X15-20 fjL. Receptacle, including foot, 30-55X9-12 fx. Main 

 axis of appendage 30-35X12 /j.; total length to tip of longest branch- 

 lets, 75 (X. Total length to tip of perithecium, 90-125 fj,. 



On Conosoma tcstaceiim Lat., No. 1984, Llavallol. 



The branches of the appendage in this species are usually badly 

 broken, and even in those which are still intact, are so beset by masses 

 of bacteria, that it has not been possible to make out the antheridia 

 with certainty, although they appear to arise in small groups some- 

 what as in S. Conosomae. The character of the perithecium and of 

 its apex, and the dark continuous axis formed by the receptacle and 

 main appendage, are characteristic of the species, although a few 

 specimens were obtained that are smaller and in which the successive 

 cells of the receptacle and appendage are less evenly continuous. 



