Additional Species. 
167 
304. Cercospora Montana. Speg. 
On Epilobium coloratum , Muhl. Cercospora epil- 
obii , Schn., is perhaps a more mature state, hav¬ 
ing 2—3 septate spores. In the Racine specimens 
the spores are uni-septate. 
305. Cercospora omphakodes, Ell. & Holway. 
On Phlox divaricata, L. Racine. 
306. Cercospora osmorrhizas, E. & E. 
On Osmorrhiza longistylis , DC. Racine. Rare. 
307. Cercospora pentstemonis, E. & K. 
On Pentstemon pubescens , Solander. Kansasville. 
Rare. 
308. Cercospora perfoliata, E. & E. 
On Eupatorium perfoliatum , L., and Eupatorium 
purpureum , L. Racine. Not common. 
309. Cercospora (Cercosporella) pirina, E. & E. 
Ou Pyrus coronaria, L. Racine. Rare but some¬ 
times rather abundant. 
310. Cercospjra platyspora, Ell. & Hoi, 
On Pimpinella integerrima , B. & H. Madison. 
(Seymour.) Racine. Abundant, 
311. Cercospora polygonorum, Cke. 
On Polygonum. Madison. (Seymour.) On Poly 
gonum Hydropiper , L. Racine. 
312. Cercospora punctoidea, E. & Hoi. 
On Galium trijidum , Ait. Racine. Not common. 
313. Cercospora reticulata, Peck. 
On Solidago serotina , Ait. Racine. Rare. 
314. Cercospora sagittari^;, Ell. & Kell. 
On Sagittaria variabilis , Engelm. Racine. 
315. Cercospora sequoia, E. & E., var. Junxperi, E. & E. 
On Juniper us Virginiana , L. Genoa Junction. 
Rare. 
316. Cercospora sii, E. & E. 
On Sium cicutcefolium , Gmel. Racine. 
