MICHIGAN ACADEMY OF SCIENCE. 203 



Aecidium Astemin ^olnv. (ITI. Pnccinia aoteii-caricis) On Astei 



sp. Ann Arbor. June. Spaldinji'. 

 Aecdinni Berbeiidis (Jniel. iITl. riucinia j»nnninis.) On Rer- 



beris vnliiaiis. Ann Aihor. K. I.ansinj>'. Mav 30-Jniio 112. Mer- 



vo\\\ Beal. 

 Aecidium Oaladii Sclav. (111. I ronivccs Caladii) auloeeious. 

 Aecidium clay.toniatum Schw. (III. Pnccinia Marife-Wilsoni) 



Autoecious. 

 Aecidium Clematidii E. & E. (III. Pnccinia Clematidis-aj»rop.yri 



E & E.) On Clematis viroiniana. Ann Arbor, Howard City. 



June 28-July 0. Spalding, Beal. 

 Aecidium comjtositarum var Eupatorii Schw. (III. Pnccinia 



Eleocliaridis Artli.) On Eupatorium perfoliatum. .\nn Arbor, 



June 22-July 11). Mains, Merrow. 

 Aecidium compositarum var Solidaginis (III. Pnccinia Solida- 



ginis-caricis Arth.) On Solidago, Ann Arbor, Spalding. 

 Aecidium Eupliorbite Pers. (III. Uromyces Euphorbije C. <& P.) 



Autoecious. 

 Aecidium Geranii D. C. On Geranium maculatum. Ann Arbor, 



etc., ete. May-June. Johnson, C. H. K., etc. 

 Aecidium Gerardijp Pk. On Gerardia virginica. Ann Arbor. June 



18. Merrow. 

 Aecidium grossulari?e Schum. On Ribes floridum, R. Cynobasti, R. 



oxyacautlioides, and R. sp. cultv. Ann Arbor, etc., etc. May- 

 June. Mains, C. H. K., etc. Heteroecious. (American forms not 



yet understood.) 

 Aecidium impatientis Schw. (III. Pnccinia Impatienti Elymi 



Arth. I On Impatiens biflora. Ann Arbor, Coldwater, New Rich- 

 mond, etc. Mav 23-Jnlv 12. Mains, C. H. K., etc. 

 Aecidium importatum Henn. See Aecidium Caladii. 

 Aecidium Iridis Ger. On Iris versicolor. Ann Arbor, Battle 



Creek. June 20-July 6. Spalding, Mains. 

 Aecidium leucostictum B. & C. Autoecious. On Lespedeza hirta. 



E. Lansing. July 10. Hicks. 

 Aecidium Lycopi. (ler. (III. Pnccinia angustata Pk.) On Lyco- 



pus virginicus. E. Lansing, Ann Arbor. June 19-Jnly 19. 



Hicks, Mains. 

 Aecidium Neesete Ger. On Decodon verticillatns. Gognac Lake, 



NcAv Baltimore, Ann Arbor. July 4-17. Spalding, Pieters, 



Mains. 

 Aecidium orbicula Pk. (III. Pnccinia orbicula i Autoecious. On 



Prenanthes alba. Ann Arbor. May 25. Spalding. 



