227 



of the bark which is pierced by the narrow, slightly compressed ostio- 

 lum. Asci clavate-cylindrical, 75-90 x 6-7 /j, with abundant filiform 

 •paraphyses. Sporidia biseriate, fusiform, slightly curved, yellowish, 

 nucleate and uniseptate at first, becoming 3-septate and more or less 

 constricted at the septa, 18-22 x 3-3| //. Accompanied by a PTioma 

 with small subglobose sporules in perithecia scarcely different from the 

 ascigerous perithecia, except in wanting the prominent ostiolum. 



On the inner surface of loose hanging bark of grape vines, New- 

 field, N.. J. The perithecia are more deeply buried than in L. trisep- 

 tatum, Pk. 



L. Ardndinis, (Pr.) 



Spfusria Arundinis, Fr, S. M. II, p. 510. 

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

 Exsicc. Rab. Herb. Mycol. 641. — Rehm. Ascom. 692. 



Perithecia scattered' or gregarious, sometimes confluent, at first 

 immersed, finally more or less erumpent, but seldom superficial, spher- 

 ical, black, solid, subrugose, with a rather small, thick, obtuse or some- 

 times subacute ostiolum with an elongated opening. Asci clavate- 

 cylindrical, substipitate, 100-1 30 x 12-15 //. Sporidia biseriate, fusoid, 

 mostly curved, 3-5-septate, and slightly constricted at the septa, brown, 

 30-37 X 6 /*. 



On reeds and grasses, South Carolina (Cke. Hndbk. p. 852). 

 In the following species the fructification is unknown. 



L. Thapsi, (Schw.) 



Spharia Thapsi, Schw. Syn, N. Am. 1607. 

 Lophiostoma Thapsi, Cke. Syn. 3714. 



Perithecia globose-conical, not smooth, flattened at the base and 

 innate or subimmersed, scattered on black spots, on parts of the stem 

 from which the woolly covering has fallen off, at first only the ostiolum 

 erumpent, finally also the perithecium itself Ostiolum thick, conical, 

 compressed, less than half as high as the breadth of the perithecium, 

 at length dehiscent. 



Common on decaying mullein stalks around Bethlehem, Pa. 



L. variabile, (Schw.) 



Sphceria variabilis, Schw. Syn. N. Am. 1608, 

 Lophiostoma variabile, Cke. Syn. 3715. 



Perithecia elliptical, flattened, rugulose, generally seated on a 

 black spot caused by the contents of the perithecia oozing out, almost 

 always covered by the fibers of the stem, which are raised in a pustuli- 

 form manner over it, only the compressed, very vai'iable ostiolum, 



