650 



H, jecorinum, B. & Rav. Grev. IV, p. 50. 



Effused, an inch or more long and broad, at first covered with 

 tawny yellow powder, then liver-colored, dotted with the dark ostioli 

 Sporidia (sec. Cooke 1. c.) 9 x 4 {x. The specimens in Rav. Fungi Ca 

 IV, 37, have the stroma subelliptical, 1-2 x 1 cm. and sporidia 7-8 

 3-4 /i. Florida specimens, collected by Col. Calkms during. th 

 winter of 1887, have the stroma 1 J-3 x 1-1\ cm. 



Ravenel's specimens are on bark of Acer rubrum, and the Florid 

 specimens are also on bark of some deciduous tree. 



The perithecia form a single layer on the surface of the blac 

 carbonaceous, 1 mm. thick stroma, and are oval in shape and closel 

 packed, about I mm. high, with their apices slightly projecting, thi 

 making the surface of the stroma finely papillose. 



H. ianthinum, Cke. Grev. XI, p. 132. 



Stromata thin, elliptical, subconfluent, 1-2 x |-1 mm., grayish c 

 cinereous, flat, surface papillose from the slightly projecting apices ( 

 the crowded perithecia, which lie in a single layer and are very smal 

 less than \ min. high, penetrating to the wood and only slightly co' 

 ered by the scanty stroma. Ostiola minute, papilliforin. Asci cylu 

 drical. Sporidia elliptical, obtuse, brown, 12-16x4-5 /i. 



On decaying wood, Canada (Macoun), Louisiana (Langlois), Can 

 Una (Ravenel), New York (0. F. Cook). 



The Canada and Louisiana specimens have been submitted 1 

 Di-. Cooke for examination, and he pronounces them to be H. ianth 

 num., Cke., of which the oi'iginal was collected in Potsdam, N. Y 

 many years ago. The name is badly chosen and misleading, for tl 

 surface of the stroma in all the specimens (unless it be the Potsda: 

 specimen, which is now lost or mislaid) is of a glaucous or grayisl 

 white, about the same as in H. atropunctatum, (Schw.), or TI. pruim 

 turn, (Kl.), without any purplish shade whatevei'. The descriptic 

 above quoted applies in other respects tolerably well. 



H. atropuuctatum, (Schw.) 



Sphczria atropunctata, Schw. Syn. Car. No. 44. 

 Anthostoma atropunctatum, Sacc. Syll. 1 102. 

 Hypoxylon atropunctatum, Cke. Syn. 977. 

 Exsicc. EU. N. A. F. 576.— Rab. F. E. 3159. 



Broadly effused, smooth, white, dotted with the smooth, conve 

 black ostiola, and surrounded with a black, sterile margin, substam 

 very hard and rigid, black inside. Perithecia in a single layer, n< 

 crowded, ovate, about \ mm. high. Asci cylindrical, abruptly co 

 tracted below into a short stipitate base, about 150x 10-12 ji. Sp 



