502 



Eu. Acharii, Till. Sel. Carp. II, p. 53. 



Lichen Eutypus, Achar. I,ich. Prodr. p. 14. 

 Sphceria decomponens, Sow. Eng. Fungi, II, tab. 217'. 

 Sphceria operculata, Pers. Syn. p. 80, (pr. p.) 

 Sphceria astroidea and S. Eutypa, Fr. S. M. II, p. 478. 

 Valsa Eutypa, Nits. Pyr. Germ. p. 131. 

 Exsicc. Rab. F. E. 1925. Rehra Asc. 169. Plowr. Sph. Brit. 22. 



Stroma broadly effused, sunk in the wood which is blackened both 

 on the surface and within, at first clothed with short, dark brown, 

 thickly tufted, conidial hairs, finally bare, lusterless, black, roughened 

 by the numerous, slightly exserted, conical or obtuse, 2-5-cleft ostiola. 

 Perithecia monostichous, thickly and mostly quite evenly scattered, 

 globose, small, deeply buried, with more or less elongated, slender 

 necks. Asci narrow-clavate, long-stipitate, 8-spored, p. sp. 20-30 x 

 4-5 fjt. Sporidia biseriate, allantoid, curved, brownish, 5-7 x 1-1 J [i. 



On the bare wood and on the bark of various deciduous trees. 

 On poplar, New York State (Peck), on limbs of Pyrus and Gary a, 

 New Jersey. Not as common as the preceding species, or at least, not 

 as abundant. 



Eu. elevans, (Schw.) 



Sphceria elevans, Schw. Syn. N. Am. 1303. 



Covered by the loosened fibers of the wood, which are raised so 

 as to make the surface uneven over a considerable extent. Perithecia 

 covered by the black-pulverulent stroma, rattier large (J mm.), de- 

 pressed-globose, subradiate-circinate, the stout, prominent ostiola burst- 

 ing out in small fascicles or singly, deeply quadrisulcate, and render- 

 ing the wood rough to the touch. 



On denuded wood of Rhus glabra, Bethlehem, Pa. (Schw.). 



Sporidia allantoid, yellowish, moderately curved, 5-6 x 1 J fi. 

 Measurements of perithecia ^and sporidia from specc. in Herb. Schw. 



** Ostiola not distinctly sulcate. 



Eu. heteracantha, Sacc. Mich. I, p. 504. (Plate 33) 



Valsa heteracantha, Sacc. Mycol. Ven. Spec. p. 129, tab, XIV, figs. 35-42. 

 Valsa hylodes, E. & E. Journ. Mycol. II, p. 40. 

 Valsa atomcespora, Cke. Grev. XI, p. 109. 

 Eutypa echinata, E. & E. Journ. Mycol. Ill, p. 43. 

 Exsicc. Thum. M. U. 1859. Sacc. M. V. 1460, 1461, 1462. Roum. F. G. 1175, 3942. Rab. 

 F. E. 2770. Rav. F. Car. IV, No. 43 Rav. F. Am. 660. Ell. N. A. F. 690. 



Perithecia membranaceous, globose, - mm. diam., in clusters of 

 4-6, buried in the scarcely altered, fibrous substance of the inner bark, 

 their stout, cylindrical, roughish, black ostiola \ mm. long, pierced 

 with a small aperture at the smooth, rounded apex, bursting through 



