261 



dry, Mack. Asci oblong-clavate. Sporidia siraplo, oblong-elliptical 

 or subfusiform, hyaline, 12-15 n long. 



On dead stems oi Mulcjediwn, Center, N. Y. 



The perithecia are slightly papillate and are so much deitresscd 

 that they resemble a minute Peziza. 



L. Coptis, (Schw.). 



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

 Sphisrella Cbptis, Farlow Cryp. Fl. of the White Mts. p. 247. 

 Exsicc. EU. & 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 x7j-8| H- Sporidia inordinate, hyaline or with numerous 

 granules, navicular, sometimes curved, 15-20x1^-2^ //. 



On leaves of Coptis trifolkt. New Hampshire, Massachusetts and 

 New York. 



L. Epilobii, (Wallr.) 



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

 SphfZyella Epilobii, Awd. Mycol. Eur. Pyr. p. 14, fig. 59. 

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



Perithecia thickly scattered, adnate with the epidermis, len.-!- 

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

 140 IX diam. Asci fasciculate, clavate, short-stipitate, 8-spored, 4.5-.')() 

 X 10 II. Sporidia imperfectly biseriate, elliptic-oblong, attenuated 

 toward each end but not acute, inequilateral, one-celled, hyaline, 1 3- 

 17x3-4/z. 



On dead stems of Epilohium, angufitifoUum, 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, 1 2-14 x 3-5 fi. 



On dry stems of Draba hirta and Erigeron umfiorna, which 

 are thickly covered their whole length, by the perithecia, Greenland 

 (Rostrup.) 



L. arctica, Rostr. 1. c. 



Perithecia minute, scattered, depressed-sphaeroid, Asci obliquely 

 oblong-ovate, 45-65x14-16 fx. Sporidia fusoid-oblong, liyaline, 

 mostly 2-nucleate, 20-25 x 5-6 (i. 



On leaves of HeliantJiMs peploicles, Godhavn, Greenland. 



