323 



U. tubseformis, (Tode). 



Sphceria tubceformis, Tode. Fungi Meckl. II, p. 51. 

 Gnomoniella tubiformis, Sacc. Syll. 1567. 

 Gnomonia tubiformis, Cke. Syn. 3839. 

 Ctratostoma tubceforme, Ces. & De Not. Schema p. 54. 

 Gnomonia tubceformis, Awd. Mycol. Eur. Pyr. p. 22, tab. 8, fig. 121. 

 Exsicc. Fckl. F. Rh. 866. Kze. F. Sel. 249, Rab. F. E- 54, 1454. Rehm Asc. 96. Desm. 

 PI. Crypt. 442. 



Perithecia in dense groups often covering the whole lower surface 

 of the leaf, sunk in the parenchyma, covered by the epidermis and hem- 

 ispherically prominent on both sides, the cylindrical, often curved osti- 

 olum about equal in length to the diameter of the perithecium, erum- 

 pent, dark brown, about 400 p. diam. Asci oblong, with a short stipe, 

 8-spored, 35-70x14-16 \. Sporidia imperfectly biseriate, oblong or 

 "elliptic-oblong, often inequilateral, hyaline, 14-15 x 5|-6 //. 



On fallen alder leaves, Carolina and Pennsylvania (Schweinitz), 

 New Jersey and New York. 



G. emarginata, Fckl. Symb. p. 122. 



Gnomoniella emarginata, Sace. Syll. 1571. 

 Sphceria mirabilis, Pk. 28th Rep. p. 80. 

 Exsicc. Fckl. F. Rh. 876. EH. & Evrht. N. A. F. 2d Ser. 2139. Kze. F. Sel. 252. (Rab. 

 Winter F. Eur. 2756) ? 



Perithecia scattered, covered, tolerably large, lenticular, black, 

 with a round, slender beak 1-1 1 lines long arising from the concave 

 side of the perithecium. Asci elliptical, stipitate, 8-spored. Sporidia 

 fusoid, often curved, continuous, binucleate, hyaline. 



On petioles of decaying leaves of Acer ruhrum, Newfield, N. J. 



In the Newfield specc. the asci are oblong-elliptical, 70-80 x 15- 

 20 fi. Sporidia fasciculate, broad-fusoid , 4-nucleate, 25-30 x4J [i, 

 witli a broad (6-8 x 4 p.), ovate, hyaline appendage at each end, but 

 this is soon absorbed. See Journ. Mycol. IV, p. 81. 



Whether this is really the G. emarginata, Fckl., may be open to 

 some doubt. The specc. distributed in Fungi Rhenani are (sec. Win- 

 ter) immature, affording neither asci nor sporidia and no measurements 

 are given in the original diagnosis. In the Newfield specc, as well as 

 in those in the Exsiccati quoted, the perithecia can hardly be called 

 "emarginate," though some of them are slightly so. Peck's Sphceria 

 mirabilis (on fallen birch leaves) certainly belongs here. 



G. tenella, E. & E. Journ. Mycol. IV, p. 80. (Plate 32) 



Exsicc. EH. & Evrht. N, A. F. 2d Ser. 2140. 



Perithecia amphigenous, scattered, mostly on the lamina of the 

 leaf and not confined to the veinlets, depressed-globose, small (J- J mm), 

 covered by the cuticle which is raised above it. Ostiolum black, 



