434 PROCEEDINGS OP THE AMERICAN ACADEMY. 



often elongate, slender straight or curved, suffused with dark blackish 

 browD, hyaline along the inner margin at least toward the base, obliquely 

 septate, the septa dark ; the antheridia stout, flask shaped, subtended by 

 a dark septum, borne singly and laterally or several together on short 

 brauchlets near the base. Spores 2Q X 2 ^. Perithecia 100-125 X 25 

 -28 yu, 35-38 X 14-18(«. Receptacle 40 X 18 /a. Appendage without 

 branches 50 X 16/x. Total length to tip of perilhecium 190-207//. 

 The Celebes material somewhat smaller. 



On Apotomus xanthotelus Bates, British Museum, No. 578, Celebes ; 

 on A. rufas Rossi, British Museum, No. 577, Europe. On elytra. 



Rhizomyces crispatus no v. sp. 



Perithecia brownish, rather stout : when viewed sidewise, the inner 

 margin strongly convex, the outer nearly straight with a general median 

 elevation or concave owing to a general outward curvature, tapering to 

 the undiiferentiated tip, the apex broad truncate, usually symmetrically 

 bisulcate : viewed at right angles to this position straight symmetrical, 

 abruptly enlarged below the narrow symmetrical abruptly distinguished 

 tip : the basal cells well defined nearly isodiametric, the stalk-cell large, 

 as long or longer than the perithecium. Receptacle two-celled, the foot 

 typically modified and blackened without rhizoids, distally geniculate 

 through a protrusion of the distal cell below the insertion of the stalk- 

 cell and opposite that of the appendage. Appendage erect, sometimes 

 exceeding the tip of the perithecium, consisting of a single series of super- 

 posed cells, the three or four lower suffused with smoky brown, the rest 

 subhyaline, each cell except the basal one giving rise directly and exter- 

 nally to a branch, the insertion in successive cells being somewhat to the 

 right and left of the median line so as to form two vertical rows, the 

 basul cells of alternate branches being superposed ; each branch con- 

 sisting of a basal cell externally blackened, which gives rise above to a 

 one-celled short branchlet, bearing usually a pair of long, slender anthe- 

 ridia, the remainder of the branch curved upward blackish brown except 

 its upper margin, and giving rise from its lower (external) side to a series 

 of close-set simple brauchlets, black, recurved, more abruptly at the tips 

 which are slightly enlarged and nearly hyaline, the whole suggesting the 

 margin of a curled black feather. Spores 20 X 2.8 fj,. Perithecia 65- 

 75 X 27-30 /x, the stalk-ceil 50-85 /a. Receptacle 30 /a. Appendages 

 140-175//. 



On Diopsis sp., British Museum, No. 739, Natal, Africa. 



