230 



narrowed below into a short, stipitate base. Paraphyses filiform. 

 Sporidia uniseriate, oblong-fusoid, subobtuse, yellowish-hyaline, three- 

 septate and constricted at the middle septum, sometimes also at the 

 other two, 12-14 x3-3| p.. The ostiolum varies considerably, being 

 sometimes distinctly compressed, sometimes regularly conical, and 

 occasionally, imperfectly radiately three-cleft. 



Differs from L. prwmorsum in' its smaller perithecia and sporidia, 

 and from L. hysterioides, E. & E., in its very different ostiolum. 



L. angustilabrum, (B. & Br.) 



taf. XI, fig. 27. 



Sphceria angustilabra, B. & Br. Not. of Brit. Fungi, No. 

 Lophiostoma angustilabrum , Cke. Hndbk. p. 850. 

 Lophiotrema angustilabrum, Sacc. Mich. I, p. 338. 

 Exsicc. Vize Micr. Fungi, 280. 



Perithecia semiimmersed, rugulose, sometimes elongated. Osti- 

 olum compressed, narrow. Asci clavate. Sporidia biseriate, fusiform, 

 curved, uniseptate and constricted, 4-6-nucleate, (becoming 3-septate) ? 

 40-43 }i long, with a short, hyaline appendage at each end. 



On a decorticated stick, New York State (Peck). 



Sporidia in Vize Exsiccati, 25-30 x 5 /i, in Plowright's F. Brit. 

 II, 49, 28-32 x 7 /^. 



This is placed by Berlese as a synonym of L. prmmorsum, 

 (Lasch), but on account of the longer, appendiculate sporidia, it seems 

 properly distinct. 



L. sexnucleatum, Cke. Hndbk. 2543. 



Lophiotrema sexnucleatum, Sacc. Syll. 5432. 



Perithecia scattered, elongated, black, slightly rugose, at 'first 

 immersed, then emergent. Ostiola compressed. Sporidia biseriate, 

 fusiform, hyaline, slightly curved, 5-septate, constricted in the middle, 

 and but little at the other septa, 35 /i long, each cell with a single 

 nucleus. 



The typical form, on dead stems of Urtica, does not appear to 

 have been found in this country. Var. Peckiana, Sacc. Syll. II, 

 p. 583 (Lophiostoma sexnucleatum, Cke, in Peck's 27th Rep. p. 110), 

 has the perithecia subgregarious, and sporidia smaller (23-30 p. long). 



On peduncles of grape vines, North Greenbush, N. Y. (Peck). 

 D. Spor. uniseptate, hyaline, mostly appendiculate (Lophiosphoera). 



L. pulveraceum, Sacc. Mich. I, p. 336. F. Ital. 225. Berl. 

 Icones. Fasc. I, tab. II, fig. 8. 



L. conchoides, E. & F. (in Herb.) 

 Lophiosphczra pulveracea, Sacc. Syll. 5414. 



