70 KANSAS Academy of Science. 



"Potato Rot" reports its occurrence in the southern and northern portions of 

 Kansas. It also gives the potato crop as injured to the extent of to 7 per cent, 

 by the Rot. It is therefore very probable that this species occurs in the State. 



SCLEROSPORA Schroeter, in Cohn Krypt. Flora Schles., Ill Band, S. 236. Pebono- 

 SPORA Subg. ScLEBOSPOEA Schroeter. In Hedw., vol. VIII (1879), pp. 83-87. [Syll.i 

 vol. VII, p. 238.] 



Conidiophores erect, furnished with few branches; conidia ovate, emitting the 

 zoospores through an apical papilla. Oospores globose, with a very thick, many- 

 layered, brown, epispore. 



6. Sclerospora graminicola (Sacc.) Schroeter, in Cohn. Krypt. Flora Schles., Ill Band, 



S. 236, No. 352. Peotomyoes geaminicola Sacc. FungiVenetiNovi vel Critici, ser. 

 v.. No. 91, in Nuovo Gior. Bot. Ital., vol. VIII (1876), p. 172; Mycothecia Veneta 

 No. 496. Ustilago (?) Uebani Magnus, in Verhandl. der Bot. Ver. der Provinz 

 Brandenburg, 1878, p. 52. Peeonospoea Setaeia Passerini, in Grevillea, vol. VII 

 (1878), p. 99. Peeonospoea gbaminioola Saccardo, in Michelia, No. VIII, p. 586. 

 [Bot. Gaz., vol. IX, p. 39; Syll., vol. VII, p. 238, No. 804.] 



Oospores and conidia (?) on leaves and inflorescence of Gramineae August. 



On Setaria Ilalica L. ( New Golden Wonder Millet.) 



1772, oospores alone, on leaves and inflorescences, August 17, 1889, Manhattan; 

 1871, oospores and seemingly a few conidia, though no conidiophores could be seen, 

 on leaves and inflorescence, August 24, 1889, Manhattan. 



On Setaria Italica Kth., var. Gertnanica. (Hungarian Grass.) 



1872, oospores only, on leaves and inflorescence, August 24, 1889, Manhattan. 

 This species did considerable damage to a plot of New Golden Wonder Millet and 

 some Hungarian Grass mixed with it, on the Kan. State Ag. Coll. farm. 



PLASMOPARA Schroeter, in Cohn. Krypt. Flor. Schles., Ill Band, S. 236. [Syll., vol. 

 VII, p. 239.] Basidiophoea Roze & Cornu. Gilletia Sacc. & Penz. Peeonos- 

 poea |Zoospoeipabae and ? Plasmatopabae De Bary. 



Mycelium thick, furnished with minute, simple vesiculose or ovate haustoria; 

 conidiojjhores erect, sparingly [usually pinnately,] branched; conidia mostly 

 papillate; oospores globose, epispore, light brown, smooth. 



7. Plasmopara Geranii ( Peck) Berl. & De Toni, in Sacc. Syll., vol. VII, p. 242, No. 811. 

 Peeonospoea Geeanii Peck. 28th Rep. N. Y. State Mus., p. 63. Peeonospoea 

 NivEA Ung., var. Geeanii Farlow, in Bull. Bussey Inst., vol. I, p. 426; [Bot. Gaz., 

 vol. VIII, p. 311.] 



On leaves of Geraniaceae May. 



On Geranium Carolinianum L. 

 M. A. Carleton No. 97, May 11, 1888, Wichita, Sedgwick county. 



8. Plasmopara viticola ( B. & C.) Berl. & De Toni, in Sacc. Syll., vol. VII, p. 239, No. 806. 



Peeonospoea viticola B. & C. Grev., vol. Ill, p. 109. Pee9nospoea viticola 

 (B. & C.) De By. Ann. Sci. Nat., ser. 4, t. XX, p. 165. Boteytis viticola B. <fe C. 

 (name only). [Ball. Bussey Inst., vol. I, p. 427; Bot. Gaz., vol. VIII, p. 309.] 

 On stems and leaves of Ampelidaceae June to October, most abundant from 

 July to October, rather common. 



On "Pearl" grape (Vitis sp. cult.). 

 460, on leaves, August 16, 1883, Manhattan. 



