261 



dry, black. Asci oblong-clavate. Sporidia Bimple, oblong-elliptical 

 or subfusiform, hyaline, 12-15 /i long. 



On dead stems of Mulgedium, Center, N. Y. 



The perithecia are slightly papillate and are so much depressed 

 that they resemble a minute Peziza. 



L. C6ptis, (Schw.). 



Sphtzria Coptis, Schw. Syn. N. Am. 1783. 



SphcEvella Coptis, Farlow Cryp. PI. of the White Mts. p. 247. 

 Kxsicc. EH. & Evrht. N. A. F. 2d Ser. 2358. 



Perithecia scattered, covered by the epidermis, never denuded, 

 convex, depressed, black, rugose, umbilicate by collapsion, often form- 

 ing rather distinct whitish or yellowish spots on the leaves. Asci 

 38-53 x7-8| fi. Sporidia inordinate, hyaline or with numerous 

 granules, navicular, sometimes curved, 15-20 xl-2| ji. 



On leaves of Coptis trifolia, New Hampshire, Massachusetts and 

 New York. 



L. Epilobii, (Wallr.) 



Sphceria Epilobii, Wallr. Fl. Crypt. Germ. II, p. 771. 

 Sphczrella Epilobii, Awd. Myeol. Eur. Pyr. p. 14, fig. 59. 

 Lccstadia Epilobii, Sacc. Syll. 1645, Cke. Syn. 5265. 



Perithecia thickly scattered, adnate with the epidermis, lens- 

 shaped, when dry collapsing to concave, perforated above, black, 130- 

 140 fi diam. Asci fasciculate, clavate, short-stipitate, 8-spored, 45-50 

 x 10 fi. Sporidia imperfectly biseriate, elliptic-oblong, attenuated 

 toward each end but not acute, inequilateral, one-celled, hyaline, 13- 

 17x3-4//. 



On dead stems of Epilobium angustifoliwn, Greenland. 



L. circumtegens, Rostr. Fungi Gronl. p. 547. 



Perithecia densely gregarious, lens-shaped, perforated above. 

 Asci cylindric-clavate, curved, 40-42 x 10 //, 8-spored. Sporidia fusoid- 

 oblong, guttulate, 12-14 x 3-5 ji. 



On dry stems of Draba hirta and Erlyeron uniflorus, which 

 are thickly covered their whole length, by the perithecia. Green land 

 (Rostrup.) 



L. arctica, Rostr. 1. c. 



Perithecia minute, scattered, depressed-sphaeroid, Asci obliquely 

 oblong-ovate, 45-65x14-16 /i. Sporidia fusoid-oblong. hyaline, 

 mostly 2-nucleate, 20-25 x5-6 (jl. 



On leaves of Helianthus peploides, Godhavn. Greenland. 



