259 



Asci clavate-cylindrical. Sporidia narrowl}- elliptical, olituse, con- 

 timioiiB. hyaline, 8-10x2-2^ ii. 

 On leaves, Maine. 



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



Perithecia gregarious on indefinite, pale spots; mostly liypopliyl- 

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

 250 // diam. Asci clavate, p. sp. 60 xlO /w, aparaphysate, subsessile. 

 ^iporidia biseriate above, uniseriate below, ineqnilaterally elliptical, 

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



On decaying chestnut leaves still hanging on twigs broken off 

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



Differs from L. echinophila , (Schw.). in its foliicolous 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 /<), bui'iecl in the parenchyma of the leaf but 

 visible through the i-aised epidermis, perforated above. The pale 

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

 drical, about 40x6;i, sessile. Sporidia uniseriate, closely packed, 

 inequilaterally elliptical, hyaline, continuous, 5-6x3^-4//. 



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

 differs in its smaller, more densely gregarious, epiphyllous perithecia 

 and smaller sporidia. 



L. Magnolise, (Schw.) 



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

 Ltssiadia MagnolicE, Sacc. Syll. 6004, Cke. Syu. 5230. 

 Sphcarella Magnolice, EU. Bull, Torr. Bot. Cluli, IX. p. 74? 

 Exsicc. EU. N. A. F. 800. 



Perithecia aggregated in orbicular or ^-ariously shaped groups, 

 finally confluent and occupying the whole lower surface of the leaf 

 puuctiform, covered, flattened, astomoiis, rising with the epidermis, at 

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

 upper surface of the leaf bullate. .\sci sublancciolate. Sporidia 

 biseriate, clavate-oblong, hyaline, 7x2J it. 



On leaves of Magnolia glauca. Kaign's Point and Newfiold, N. J. 



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

 not 1)6 sure that the specc. in N. A. F. are the S. Mugnolicc, Schw. 



L. fraxinicola, (Curtis & Pk.) 



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

 J^^siadia fraxinicola, Sacc> Syll. -1626, Cke, Syn. 523^ 



