Report of tue Botanist. 101 



XyLAKIA acuta 11. sj?. 



Plant gregarious or snbca^spitose, 1-1.5' liigli ; club cylindrical 

 or subfusiform, generally with a sterile acute apex, blackish-brown, 

 central substance white with a radiating structure; stem involved 

 in a dense purplish mucedinous tomentum which causes it to 

 appear bulbous ; perithecia globose, black ; spores uniseriate, ellip- 

 tical, sometimes slightly curved, colored, .OOOG'-.OOOT long. 



Mossy decaying logs in woods. Greig. September. 



This species is related to Jl. digltata from Avhich it differs in its 

 less c£espitose habit, and in the character of the stem and central 

 substance. According to Fries, X. digitata has a '^ simple central 

 pith," in this species the central pith is radiating as in X. poly- 

 inorpha. 



Htpoxylon yerxicosum Schio. 



Sticks and dead branches. Pouglikeepsie. Gerard. Adiron- 

 dack Mts. July. 



HyPOXYLON ATROPURPUREUM 7^/\ . ^. 



Decaying wood. Buffalo. Cli)iton. 



DiATRYPE ATROPUNCTATA Sc/lW. 



Dead branches of oak trees. Greenbush. August. 



Dyatrype discreta So/no. 



Dead branches of apple trees. Poughkeepsie. Gerard. Beth- 

 lehem and Guilderland. May. 



DiATRYPE Cercidicola B. di C. 



Stroma black, plane, suborbicular, S'-i" in diameter, thin, seated 

 on the inner bark, surrounded by the ruptured epidermis, dotted 

 by the minute depressed or umbilicate at length perforate ostiola ; 

 perithecia crowded, elliptical or ovate, spores unequally ovate, 

 colored, .0001' long. 



Bark of unknown wood. Buffalo. Clinton.* March. 



The inner surface of the bark is stained black. 1 have seen no 

 description of this species, but the specimens agree with those 

 received from Dr. Curtis and labeled b}^ him Diatrype Cercidicola 

 B. & C. 



DiATRYPE BETULiNA 11. sjj. (Plate 1, figs. 27-31.) 



Stroma transversely erumpent, elliptical, prominent, penetrating 

 to the Avood on which it forms a white spot surrounded by a black 

 line, green within, black on the surface, which is nearly plane and 



