412 



The perithecia arc solitary, one in the center of each spot. Iwt 

 the spots are often sterile. 



L leiicospila, (B. & ('.) 



Spturria leucospila, B. & C. Grev. IV, p. 153. 



I .inospora leucospila, Sacc. Syll. 4101, Cke. Syn. 5848. 



-On narrow pallid spots parallel with the nerves on the under 

 side of the leal'. Asci linear. Sporidia filiform." 

 On leaves of Platanus, South Carolina, 

 We have seen no specimens. 



L Palmetto, E. & E. Journ. Mycol. Ill, p. 45. (Plate 31) 



Perithecia globose, about 4 mm. dinin., immersed, with the pap- 



O O 11 



iKose ostioluni erumpent and included in a superficial, depressed-conic. 

 .-ap-like stroma nearly as broad as the perithecia, and around which 

 the epidermis of the leaf is blackened, as is also the parenchyma of the 

 leaf around the perithecia, Asci lanceolate, 75-80 x 8-10 /*, with 

 abundant paraphyses. Sporidia 8 in an ascus, linear, fusoid, yellow- 

 ish, nucleate, acute, 40-50 x 2-2 J jut. The perithecia are mostly in sub- 

 elongated spots of a paler color than the surrounding part of the leaf. 

 On dead places in living leaves of Sabal Palmetto. Point a la 

 Hache T La., (Langlois). 



ISOTHEA, Fr. 



Summa Veg. Scand. p. 421. 



Perithecia covered by a phyllogenous, maculiform pseudostroma. 

 Asci oblong. Sporidia clathrate-septate (muriform). 



I. Nyssse, B. & C. Grev. IV, p. 157. 



Shining, penetrating the leaf, seated on a little brown spot not 

 much wider. Asci oblong. Sporidia shortly fusiform, not three times 

 longer than broad, at length fenestrate." 



On leaves of Nyssa aquatica. (Carolina) ? 



HYPOSPILA, Fr. 



Summa Veg. Scand. p. 421. 



Perithecia iminei>ed in the parenchyma of the leaf, very delicate, 

 covered above by a black, phyllogenous, stromatic shield, beak 

 1 ostioluni) lateral, at length barely perforating the epidermis and 

 appearing as -a black speck. Asci fusoid-clavate. 8-spored, apar- 

 Jiphysate. Sporidia biseriatc, 1- finally 3-septate, hyaline. Minute 



