259 



Asci clavate-cylindrical. Sporidia narrowly elliptical, obtuse, con- 

 tinuous, hyaline, 8-10x2-2 ft. 

 On leaves, Maine. 



L. castanicola, E. & E. (in Herb.) 



Perithecia gregarious on indefinite, pale spots; mostly hypophyl- 

 lons, erumpent, depressed-hemispherical, black, pierced above, 200- 

 250 ft diam. Asci clavate, p. sp. 60 xlO /i, aparaphysate, subsessilc. 

 Sporidia biseriate above, uniseriate below, inequilaterally elliptical, 

 hyaline, continuous, 10-12x5-6 ft. 



On decaying chestnut leaves still hanging on twigs broken off 

 last fall, Newfield, N. J., April, 1891. 



Differs from L. echinophila, (Schw.), in its foliieolous growth and 

 larger asci and sporidia. 



L. rubescens, E. & E. (in Herb.) 



Perithecia densely gregarious on pale spots on the upper side of 

 the leaf, minute (75-80 //), buried in the parenchyma of the leaf, but 

 visible through the raised epidermis, perforated above. The pale 

 spots in some of the specc. finally assume a reddish hue. Asci cylin- 

 drical, about 40 x 6 /, sessile. Sporidia uniseriate, closely packed, 

 inequilaterally elliptical, hyaline, continuous. 5-6 xS^-A/t. 



On decaying chestnut leaves with L. castanicola, from which it 

 differs in its smaller, more densely gregarious, epiphyllous perithecia 

 and smaller sporidia. 



L. Magnoliae, (Schw.) 



Spharia Magnolia, Schw. Syn. N. Am. 1808. 

 Lastadia Magnolia, Sacc. Syll. 6004, Cke, Syn. 5230. 

 Sphcerella Magnolia, EH. Bull. Torr. Bot. Club, IX. p. 74? 

 Exsicc. Ell. N. A. F. 800. 



Perithecia aggregated in orbicular or variously shaped groups, 

 finally confluent and occupying the whole lower surface of the leaf, 

 punctiform, covered, flattened, astomous, rising with the epidermis, at 

 length collapsing, black, but with the disk whitening out. Makes the 

 upper surface of the leaf bullate. Asci sublanwolate. Sporidia 

 biseriate, clavate-oblong, hyaline, 7x2| jk. 



On leaves of Magnolia glauca, Kaign's Point and Newfield, X. J, 

 There is no spec, of this species in Herb. Schw., so that we can 

 not be sure that the specc. in N. A. F. are the S-. Magnolim, Schw. 



L. fraxinicola, (Curtis & Pk.) 



Depatea fraxinicola, C. & P. in Peck's 23d Rep. p. 64 

 Juestadia fraxinicola, Saec. Syll. 1626, Cke. Syn. 5234 



