43 



A. Bignoniae, E. & E. Proc. Acad. Nat. Sci. Phil. July, 1890, 



Perithecia hypophyllous, thin membranaceous, 115 // diam., sub- 

 hemispherical, becoming slightly depressed above, thickly scattered 

 over the surface of the leaf! Ostiolum papilliform. Asci obovate, 20 x 

 15 //, or elongated to 30x15 pt, without paraphyses. Sporidia 8, cla* 

 vate-oblong, uniseptate, hyaline, scarcely constricted, 10-12x3-4//. 



On leaves of Bignonia capreolata, Louisiana (Langlois). 



A. purpurea, E. & M. Journ. Mycol. II, p. 128. 



Perithecia hypophyllous, convex-scutellate, scattered or gregarious, 

 often collected along the midrib towards the base of the leaf, subasto- 

 mous, of radiate-cellular structure, 130-150 /* diam., margined with a 

 narrow fringe of pale purplish-black hyphas closely appressed to the 

 surface of the leaf, which is of a reddish-purple tint for a little distance 

 around. Asci obovate, 30-35 x 18-22 //, 8-spored. Sporidia crowded, 

 ovate-oblong or oblong-elliptical, 12-16 x 5-6 /*, hyaline, with the 

 endochrome three times divided, and often one of the cells with an 

 imperfect longitudinal division, thus varying from the usual type. 



On leaves of Olea Americana, Florida (Calkins). 



A. clavuligera, Cke, Grev. VI, p. 142. 



Exsicc. Rav. F. Am. 76. 



Mycelium dark brown. Conidia elliptical, brown, white-banded, 

 ("albo-fasciatis"), septate, constricted in the middle, pedicels elongated, 

 hyaline. Perithecia scutellate. Asci subglobose, apiculate at the 

 base. Sporidia elliptical (immature). Dr. Martin, in Journ. Mycol- 

 I, p. 145, states that the sporidia are oval or obovate, uniseptate, hya- 

 line, 21x6//. We have seen no specimen except that in Rav. F. Am, 

 and that is without perithecia. 



C. Species not well-known. 



A. oleina, Cke. Grev. XI, p. 38. 



Exsicc. Rav. F. Am. No. 757. 



Perithecia hypophyllous, scattered, flattened, discoid with a 

 narrow margin of brown, radiating hyphae. Asci clavate, 24-30 x 9 

 -10 ji. "Sporidia hyaline, small, uniseptate, (immature). Pycnidia 

 similar but smaller, stylospores minute, oval, hyaline, 5 fi long." (Cke.) 



On leaves of Olea Americana, Georgia. 



A. nigerrima, E1L Bull. Torr. Bot. Club, VIII, p. 91. 



The specimens of this species are poor and unsatisfactory, and its 

 habitat (old decaying stems of Erigeron) indicates that it can hardly 

 belong here. 



