615 



sufface convex, papillate. Sporidia oblong, brown, uniseptate, ] 5 x 5 //." 

 On dead branches of Lindera Benzoin, New York and Penn- 

 sylvania. 



The specc. in N. A. P., like those from Gerard, are sterile. The 

 general aspect is that of D. collecta, which perhaps this is. 



D. smilacicola, Cke. & Ger. Grev. VII, p. 14. 



"Scattered, black, erumpent, convex. Asci cylindrical. Spo- 

 ridia biglobose, strongly constricted, brown, 18-20 x 10 /^." 

 On Smilax twigs, New York (Gerard). 



D. Epilobii, Fr. S. M. II, p. 559. 



Spots aniplexicaul, smooth, uniformly pitch-black, roughened liy 

 the subprominent cells. 



On dead stems of Epilohium angustifolium, Adirondack Mts., 

 N. Y. (Peck). 



D. abncirmis, Howe, Bull. Torr. Bot. Club, V, p. 42, from the de- 

 scription given, should be Hypoxylon, perhaps a form of H. smilacic- 

 olum,, Howe. 



HOMOSTEGIA, Fckl. 



Symb. p. 223. 



Stroma somewhat flattened. Or hemispherical, carbonaceous, black, 

 (gray inside). Ascigerous cells immersed, pale. Ostiola minute, 

 papillate. Asci oblong-clavate, 8-spored. Sporidia ovate-elliptical, 

 3-septate, brown. 



H. Pi?:g6tii, (B. & Br.) 



Dothidea Piggotii, B. & Br. Not Brit. Fungi, No. 660. 

 Sphrsria homostegia, Nyl. in Flora, 1857, p. 688. 

 Homostegia aiusta, Fckl. Symb. p. 224. 

 Homostegia Piggotii, Karst. Myc. Fenn. II, p. 221. 

 Exsicc. Fckl. F. Rh. 953.— Ell. N. A. F. 485. 



Stroma adnate to the lichen thallus, convex-pulvinate, 1-3 mm. 

 diam., dull black, wrinkled and roughened by the projecting ostiola. 

 Ascigerous cells ovate-globose, white, 120-150 ^ diam. (260 //, Win- 

 ter), deeply sunk in the stroma. Asci oblong, short-stipitate, par- 

 aphysate, p. sp. 60-70x15 // (60-70x21-24 (i Winter). Sporidia 

 imperfectly biseriate, clavate-oblong, subinequilateral, slightly curved, 

 3-septate, brown (almost opake), 18-22 x 7-8 /«, slightly constricted at 

 the septa. 



