1885.] 



NORTH AMERICAN RAMULARI^. 



75 



late, coiitiiiiioQS, hyaline, subj?euiculate, equal, 35— 40 x 3— 3i- simple 

 or subramose, tips acute or obtuse. Conidia cylindrical, 1— 2-septate, 

 15—38 X 4 with ends rather obtusely rounded. 



On leaves of Plantago major, l^^ew Jersey to Kentucky (Kellerman) 

 and Wisconsin (Trelease.) 



6. Eamularia Celtidis, E. & K. n. s. 



Amphigenous, on small (1—2 mm.), round spots with a thin, white 

 center, and a brown margin limited by a well-defined, narrow, slightly 

 raised line. Hyphse very short (5—8 x 2i entire, hyaline, growing in 

 little tufts which appear like a fine, white powder sprinkled over the 

 spots. Conidia nearly cylindrical hyaline, straight or slightly curved, 

 1—3 septate, 25—50 x 2— 2i fK 



On leaves of Celtis occidentalis, Sept., Kansas (Kellerman.) Ap- 

 proaches Cercospora. 



7. Eamularia Tulaskbi, Sacc. Mich. I, p. 536. 



Spots grayish white with a broad, red-shaded border. Hyphse fascic- 

 ulate, hyaline, simple, 30—40 x 3 fJ-. Conidia cylindrical, continuous or 

 1— 2-septate, hyaline, 20—35 x 2i— 4i P-. 



On leaves of Fragaria, throughout the country. 



Mr. F. S. Earle has given a minute account of the injury done by 

 this parasite to the cultivated strawberry, in a paper read at the annual 

 meeting of the Miss. Valley Hort. Soc. at 'New Orleans, Jan. 1885. 

 Prof. Trelease, in his Prelim. List of the Parasitic Fungi of Wisconsin 

 (1884) remarks that this fungus appears to pass the winter in black, 

 stromatoid sclerotia which protrude from the surface of the leaf, and 

 that in the spring, conidial threads grow out of these bodies and quickly 

 fruit. He also gives B. FragaricE, Pk. in 34th Kep. as a synonym of this. 



8. Eamularia arvensis, Sacc, Mich. II. p. 548, Fungi Ital. tab. 1000. 

 Spots suborbicular, whitish, minute, with a red border. Hyphse 



epiphyllous, fasciculate, subsimple, continuous hyaline, denticulate. 

 Conidia cylindrical or continuous, 1-septate, 22—26 x 2i— 4 briefly cat- 

 enulate, hyaline. 



On Potentilla Norvegica, Ohio (Kellerman), Wisconsin (Trelease), New 

 Hampshire (Farlow). 



9. Eaiviularia Armoraci^e, Fckl. Symb. Myc, p. 361. 



Tufts loose, white, on dry, orbicular spots. Hyphse fasciculate, sim- 

 ple. Conidia cylindrical, subventricose, simple (continuous), hyaline, 

 22 x 5 



On leaves of Nasturtium Armorada, N. Y. (Peck), Wisconsin (Tre- 

 lease), Kansas (Kellerman). 



10. Eamularia Urtic^, Ces. (in Eab. Herb. My col. 1680). 



Spots gray, small, 1—3 mm., indefinite, thickly scattered over the 

 leaf and visible on both sides. Hyphse liypophyllous, loosely fasciculate, 

 subefCused, hyaline, continuous, 30—40 long, subdenticulate above, 

 often with one or more lateral "knee-like projections" above (incipient 



