116 Wisconsin Academy of Sciences, Arts and Letters. 



On leaves of Eupatorium ageratoides L. and Podophyllum pelta- 

 tum L. 

 Stroma sessile, 3 mm. in diameter, hemispherical, waxy, pale flesh-colored 

 Perithecia superficial. Asci and spores as in Epichloe typliina (P.). 



A curious fungus, related to Cordyceps and Epichloe, apparently growing 

 on clusters of spiders' eggs. Possibly connected with Isaria ara<ihnophila. 

 No. 76. 



PHACIDIACEAE. 



70. Phacidium ranunculi Desmaz. 



On leaves of Ranunculus pennsylvanicus L. and R. sceleratus L. 

 Madison; La Crosse, Pamme'. 

 Flesh-colored; not dark like English specimens, but otherwise similar to 

 them. 



71. Phacidium trifolii (Bernh.). 



On leaves of Trifolium pratense Li. Madison. 



72. Rhytisma salicinum Fr. 



On leaves of Salix. Madison. 



73. Rhytisma asteris Schw. 



On leaves of Solidago. Sauk City, Lliders. Also found on one 

 or more species of Aster, at Brownsville, Minn., by Mr. Pammel. 

 The compound nature of these galls is discussed in volume IV. of 

 "Psyche." 



74. Rhytisma ilicis canadensis Schw.? 



On leaves of Ilex verticillata Gray. Milwaukee, Lapham; Devil's 

 Lake, La Crosse, Pammel. 

 Forming round or somewhat irregular black spots, about 2 mm . in dia- 

 meter, surrounded by a brown border, on the upper surface of the leaf — 

 whitish below. The same form occurs on leaves of I. laevigata Gray, col- 

 lected at Ovid, N. Y., by Brewer and Chickering; but all of my specimens 

 are immature. 



DISCOMYCETES. 



75. Peziza dehnii Rabh. 



On petioles and leaves of rotentilla norvegica L., in spring and 

 tummer. Madison; La Crosse, Pammel. 



ISOLATED IMPERFECT FORMS. 



76. Isaria arachnophila Ditm. 



On spiders, in autumn. Madison. (C/. No. 69). 



