138 Wisconsin Academy of Sciences, Arts and Letters. 



243. ROESTELIA LACERATA (Sow.). 



Very common in summer and fall, on leaves of Crataegus tomentosai 

 L. and C. coccinea L. Madison, Ithaca. 

 This is considered by European authorities to be the aecidium of Gym- 

 nosporangium clavariaeforme D C, which grows on the Juniper, but has 

 not yet been reported in Wisconsin. Although the Eoestelia is very abun- 

 dant about Madison, I have never seen the Juniper here, so that its 

 teleutospores are necessarily wanting. 



344. ROESTELIA PENICILLATA (Sow.). 



Common on leaves of Pyrus coronaria L. and AmelancMer canadensis 

 Torr. and Gray., the spermogonia in May and June, the cluster- 

 cups later. Madison; Del ton, La Crosse, Pammel. 

 Sometimes considered a variety of the last species. 



245. ROESTELIA TEANSFORMANS, El].(?) 



Spermogonia on leaves of Pyrus arbutifolia L. La Cross?, Pammel. 



USTILAGINEAE. 



246. UsTiLAGO PANici GLAUCi (Wall.) {U. neglecta Niessl). 



Iq ovaries of Setaria glauca Beauv. Very abundant in falL 

 Syene, Madison. 



247. UsTiLAGO SORGHI (Link) (U. tulasnei Kuehn). 



In ovaries of Sorghum saccharatum L,, grown from imported 

 Ciiinese seed. Madison. 

 The specimens are more elongated than the typical form, but hardly 

 distinct. Dr. Farlow writes me that he has more typical forms from 

 Washington, D. C. The introduction of the smut with Chinese seed is- 

 well shown by its occurrence in three distinct localities (District of Colum- 

 bia, Farlow; New York, Sturtevant; and Wisconsin) on plants raised from 

 imported seed. It does not seem to spread with us. 



248. USTILAGO ZEAE MAYS (D C.) (U. maydis Lev.). 



Iq various parts of Zea mays L. Very abundant everywhere; also 

 on leaves of the Teosinte (Euchlaena luxurians Fourn.) at Mad- 

 ison, and Cambridge, Mass. 



249. USTILAGO SEGETUM Pers. 



In ovaries of Arena sativa L., Triticum vulgare Vill. and Hor- 

 deum vidgare L. Madison; Sauk City, La Crosse, Pammel; Mil- 

 "waukee, Lapham. 

 Very abundant; the small-grain smut. 



250. USTILAGO RABENHORSTIANA Kuehn. 



In the inflorescence of Panicum sanguinale L. Madison; La Crosse, 

 Pammel, 

 Spores smoother than the European form. 



