500 



EUTYPA, Till. 



Sel. Carp. II, p. 52. 



Stroma effused, cither sunk in the matrix which is blackened on 

 the surface, but unchanged within, except in being limited by a black. 

 circumscribing line, or raised partly above the surface of the matrix, 

 the raised part differing in substance and color from the rest. Peri- 

 thecia scattered, lying in one or more layers, mostly with short, 

 exserted ostiola. Asci long-stipitate, 8-spored. Sporidia allantoid. 

 hyaline or yellowish-hyaline. 



From the material at our command, we are not able to add many 

 original observations on the species of this genus, and the descriptions 

 given are mostly taken from Winter's Pilze and Saccardo's Sylloge. 



Ostiola 4- or more-sulcate. 

 Eu. spinosa, (Pers.) 



Sphaeria spinosa, Pers Syn. p. 34, tab. II, figs. 9-12. 

 Sph&ria limczformis, Schw. Syu. Car. 47. 

 Diatrype Berengeriana, De Not. Sfer. Ita). p. 27, tab. 26. 

 Valsa spinosa, Nits. Pyr. Germ. p. 127. 

 Eutypa spinosa, Tul. 1. c. 



Exsicc. Fckl. F. Rh. 1050. Rab. F. E. 936 EH. N. A. F. 1183. Lin. Fungi Hung. 273. 

 Rav. Fung. Car. Ill, 58. 



Stroma widely effused, often for a foot or more in extent, seated 

 in the wood or the thicker and harder parts of the bark, the outer 

 layer of which is soon thrown off, exposing the blackened matrix 

 which it penetrates, forming a black crust 2-4 mm. thick, clothed at 

 first with black conidia-bearing hairs simple or branched. Conidia 

 (Trichosporium Berengerianum, Sacc.) obovate, truncate at base, 

 dark brown, 7x5 //, solitary or verticillate, terminal. Perithecia 

 buried in the surface of the wood or bark, globose or ovate, 1-1J mm. 

 high, thickly crowded and thus becoming angular or flattened, with 

 very large, thick, wrinkled, pyramidal, deeply 4-cleft, exserted ostiola. 

 Asci narrow-clavate. long-stipitate, 8-spored, p. sp. 30-40 x 5-6 p.. 

 Sporidia subbiseriate, allantoid, slightly curved, pale brownish or yel- 

 lowish, 8-10 x 2 p.. 



On old logs and limbs of various deciduous trees, maple, oak, <fec., 

 common. 



Eu. liulibunda, Sacc. Miehelia, I, p. 15. 



Valsa referciens, Sacc. Myc. Ven. Spec. p. 128. 

 Exsicc. Rab. F. Kur. 2323. Ell. & Evrht. N. A. F. 2d Ser. 2118, a. & b. Sacc. M. Ven. 



200, 1464. 



