323 



^. tubseformis, (Tode). 



Sphceria tubcsformis, Tode. Fungi IVteckl. II, p. 51. 

 Gnomoniella tubiformis, Sacc. Syll. 1567. 

 Gnomonia tubi/ormis, Cke, Syn. 3839. 

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

 Gnomonia tub^forvUs, Awd. Mycol. Kur. Pyr. p. 22, tab. '8, fig. iSl. 

 Exsicc. Fekl. F. Rh. 866.— Kze. F. Sel. 249,— Rab. F. B. 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 fi diam. Asci oblong, with a short stipe, 

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

 elliptic-oblong, often inequilateral, hyaline, 14-16 x 5|-6 p.. 



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

 New Jersey and New York. 



G. emarginkta, Fckl. Symb. p. 122. 



Gnontomella emarginata, Sacc. Syll. 1571. 

 SphiZria mirabilis, Pk. 28tli Rep. p. 80.- 

 Exsicc. Fckl. F. Rh. S76.— BU. & 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 x4| //, 

 with a broad (6-8 x 4 //), ovate, hyaline appendage at each end, but 

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



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

 some doubt. The specc. distributed in Fungi Rheiiani 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 Sphmria 

 mirabilis (on falkn birch leaves) certainly belongs here. 



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



Exsicc. Ell. & Evrht. N. A. F. sd Ser. 2140. 



Perithecia amphigenous, scattered, mostly on the lamina of the 

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

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



