116 



JOURNAL OF MYCOLOGY. 



Vol. 1, 



On leaves of Neillia opulifoUa, Calafornia (Harkness.) 



36. Glceosporitjm Lonicer^, Hark., 1. c. 



Spots amphigenous, orbicular or irregular, white above with a rusty 

 brown margin, ferruginous below. Acervuli scattered, ephiphyll ous, 

 round, flat, black, .2 mm. in diameter. Spores clavate, mostly curved, 

 obtuse above, narrowed nearly to a point below, with the septum nearer 

 the narrow ends hyaline, 25—30 x 6—8 M (35—40 x 7—9 fJ- Hark.) 



On leaves of Lonicera coiijugalis, Sierra Nevada Mts.,Cal. (Harkness.) 



37. Glceosporium Martini, Sacc. & Ell., Mich. II, p. 574. 



Spots amphigenous, minute (li mm.), rusty brown. Acervuli mostly 

 a single one in the center of the spot, hypophyllous,i — I mm. in diameter. 

 Spores subhyaline, fusiform, curved, issuing in amber-colored masses, 

 endochrome divided in the middle, 12 — 15 x i 2y, on very short basidia. 



On leaves of Quercus oUusiloba, Chester Co., Pa. (Dr. Martin.) G. 

 ^^eptorioides, Sacc, scarcely differs from this except in its longer spores. 



38. Glceosporium Potentill^ (Desm.) Ouds. 



Spots epiphyllous, purplish-red when fresh, fading out when dry, 

 subcircular, small. Acervuli covered, lenticular, pale, becoming nearly 

 black, scattered, small. Spores oblong-ciavate, or fusoid-clavate, the 

 upper half curved to one side and subrostrate, 15—22 x 4—6 fJ- (20—25 x 7 

 —9 !->■, Sacc. in SylL), edochrome distinctly once divided, hyaline, on very 

 short basidia. 



On living leaves of Fragaria (cult.), Pa. (Martin), Ills. (Earle.) On 

 Potentilla Anserina, Cal. (Harkness.) Probably common throughout the 

 country. 



39. Glceosporium Toxicodendri, E. & M., n. s. 



Spots amphigenous, dirty w^hite. small (2 mm.) with a rather broad, 

 nearly black border. Acervuli scattered, not numerous, dark colored. 

 Spores oblong, 1-septate, 12—15 x 5—6 u-. 



On living leaves of Bhus Toxicodendron, Charles City, Iowa, Sept. 

 Coll. Prof. J. C. Arthur. 



40. Glceosporium Quercus, Pk. (in Uteris.) 



Spots amphigenous, suborbicular, 4 — 6 mm. , definite. Acervuli hypo- 

 phyllous, scattered, rather numerous. Spores oblong-cylindrical, 1-sep- 

 tate, straight or slightly curved, constricted more or less in the middle, 

 ends subobtuse, 12—15 x 2— 2i oozing out in amber colored masses. 

 Allied to Marsonia Martini, S. & E., and M. Quercina, Winter, but differs 

 in its more numerous acervuli and mostly rather shorter spores. 



On living leaves of Quercus ilicifolia, IST. Y. (Peck.) 



41. Glceosporium ochroleucum, B. & C, sub Septoria, Grev. Ill, 

 p. 9. Cryptosporium epijohyllum, C. & E., Grev. VII, p. 37. i^T. A. E. 533. 



Spots small (2—3 mm.), pale, surrounded by a narrow, dark margin. 

 Acervuli innate, pale, few (1—5) or often only one in the center of the 

 spot, opening mostly below. Spores crescent shaped with the ends sub- 

 obtuse, 20—25 X 2i—3 !->-, continuous at first but endochrome finally 



