222 



broad, elliptical ostiolum, which is finall)'" cleft with an elongated open- 

 ing. Asci clavate, short-stipitate, 90-110 x 15-1 8 fi, 8-spored, paraph- 

 ysate. Sporidia subbiseriate, broad-fusoid, brown, narroA\'ed towards 

 each end, sometimes curved, 5-9-septate, 40-55x9-12 ji. 



On bark of dead oak, N. J., New York (Peck), Carolina and 

 Pennsylvania (Scliw.) 



L. turritum, 0. & P. Peck's 29th Rep. p. C4.— Grev. tab. 68. fig.2. 



Perithecia subgregarious, emergent, prominent, snbglobose, black, 

 with broad, compressed, truncate necks and elongated ostiola. Asci 

 cylindrical or clavate. Sporidia oblong-elliptical, 5-septate, brown, 

 20-23 II long. 



On dead branches of tialix, New York. 



L. excipniifornie, (Fr.) 



SphtEria excipulifoymt\ Fr. S. M. II, p. 469. 

 Lophiostoma excipniifornie, Ces. & De Not. Schema, p. 45. 

 Kxsicc. Rehm. Asc. 238. 



Perithecia scattered or gregarious, ])artly stink in the matrix or 

 nearly superficial, spherical, black, about 1 mm. diam., with a slightly 

 compressed, prominent ostiolum obtuse and enlarged above. Asci 

 cylindrical, short stipitate, 8-sporc(l, 280-300 x 20-26 ,u, with filiform 

 paraphyses. Spoi'idia subbiseriate or nniseriate, oblong, 6-9-septate, 

 not constricted, brown, with the end cells subhyaline, 44—66 x 15-18 //, 

 (Winter). The specimens in Rehm's Asc. 238, have asci (p. sp.) about 

 150 X 12 /z, sporidia 30-50 x 8-10 /i. 



Var. Abietis, E. & E., Journ. Mycol. IV, p. 64, on bark of Abies, 

 Cazenovia, New York (Underwood & Cook), differs from the usual 

 type, on bark of deciduous trees, in its larger (60-75 x 12-16 p.) spo- 

 i-idia and its rather narrower ostiolum. 



We have seen no American specimens of the normal form, on 

 bark of deciduous trees. 



L. macrosporum, Speg. Mich. .1, p. 466, F. Ital. tab. 607. 

 , Perithecia scattered, erumpent, spheeroid, 1 mm. diam., globose, 

 dull black. Ostiolum compressed, extending ^-| way across the ver- 

 tex of the perithecium. Asci broad clavate-cylindrical, 225-300x40- 

 50 ju, with a short stipe and abundant, conglutinated paraphyses. 

 Sporidia crowded-biseriate, oblong, slightly curved, obtuse, 7-9-sep- 

 tate and often slightly constricted in the middle, brown, the cells filled 

 with large nuclei, so as to appear muriform, though not really so, 

 80-100x20-25/^. 



