260 



"Spots arid, suliorbicular. sometimes witli alirownisli border, 

 ^ -| an incii diam. Perithecia black, those, well developed are con- 

 ca^•e above with a slight elevation in the center. Asci subfusiform, 

 4_8-spored, spores deiiselj- packed in the asci, oblong, or narrow-ellip- 

 tical," having a little nucleus near each end, 12-15 x4 6 ii. altout 

 \ as long- as wide." 



On leaves oi Fvdxinus Americana, XXhaxiy , X. Y. (Peck). 



Apparently dififerent from Sphcerellu fraxi nicola, (Schw.) 



L. spinicola, (E. & E.) 



Spliarella spitiicola, K. & E. Proc. Acad. Nat. Sci. Phil. July, 1890, p. 231. 



Perithecia scattered or 3— t together, minute 110-120 [i, collaps- 

 ing, visililc through the translucent epidermis as minute black sjjecks, 

 fringed around the base witli scanty mycelium. Ostiolum papilliforni. 

 Asci oblong, sessile, 45x12 n (p. s]).) Spoi'idia biseriate, oblong-ellip- 

 tical, continuous, granular, rounded at the ends, 12-15 x 5-6 fi. 



On spines oi' Rosa riibiginosu, West Chester, Pa. 

 B. On leaver and xfeiiis of d icotyledononx, herbaceous plantx. 



L. cinerascens, (Schw.) 



SphcEria cinejascens, Schw. Syn. N. Am. 1795. 



Spiitxrella cinerascens, Cke. in Journ. Bot. 1883. 



l^cEstadia cinerascens, in Cooke's Syn. Grev. 18, p. 65 (5227). 



Spots amphigenous, very large, irregular and indeterminate, 

 cinereous Itelow, black above. Perithecia innumerable, crowded on 

 the spots, very small, lilack, innate, subacuminate. astomous oi' at 

 length perforated, scattered or collected and arranged so as to repre- 

 sent various engraved or sculptured figures. Asci clavate. Sporidia 

 uarrow-elliptical, hyaline, 8 x 2J ,«. 



On leaves of Asclepkis si/riacu, Bethlehem, Pa. 



L. Apocyni, E. & E. Proc. Phil. Acad. 1. c. 



Perithecia gregarious, depressed-spherical, 150-200 /2 diam., per- 

 foiated above, co\ered by the cuticle through which they are visible 

 by translucence. Asci clavate-cylindricail. 40-50 x 10-12 //. Sporidia 

 (■rowded-biseriate. oblong, 2-nucleate, olituse, mostly a little curved. 

 10-15x5-6 /i. 



On dead stems of Apocyxurn, London, Canada (Dearness). 



L. depressa. (Pk.) 



SphcErella depressa, Pk. 33d Rep. p. 34, (not SphcErella depressa, Cke. Journ. Bot. 

 1883, Physalospora depressa, Sacc. Syll. 1709). 



Pcr'ithecia numerous, minute, depressed, or even concave when 



