Additional Species. 
179 
447. 
Septoria silenes, West. 
On Silene noctiflora , L. 
Racine. 
Rare. 
448. 
Septoria silenicola, Sacc. 
On Silene stellata , Ait. 
Racine. 
Rare. 
449. 
Septoria smilacin^e, E. & M. 
450. 
On Smilacina. Racine. 
Septoria solidaginicola, Peck. 
On Solidago serotina , Ait., S. Canadensis , L., and 
Aster Shortii, Hook. Racine. Common and abun¬ 
dant. 
451. Septoria speculari^e, B. & C. 
On Speculama perfoliata, A. DC. Kansasville. 
452. Septoria spiculosa, E. & Holway. 
On Symplocarpus foetidus , Salisb. Racine and 
Lake Geneva. Rather common. 
453. Septoria stachydis, Rob. & Desm. 
On Stachys aspera, Michx. Racine. Not scarce. 
454. Septoria stellari^e, Rob. & Desm. 
On Stellaria media , Smith. Racine. Not com¬ 
mon. 
455. Septoria trillii, Peck. 
On Trillium erectum , L., T. cernuum , L., T. gran - 
diflorum , Salisb., and T. reciirvatum , Beck. Ra¬ 
cine. Common. On the white flowered species 
the spots are larger, more irregular in shape, and 
nearly black, but when mature with a gray center. 
456. Septoria umbelliferarum, Kalch. 
On Cicuta maculata , L., and Tiedemannia rigid a, 
Coult. & Rose. Racine. 
457. Septoria verbena, Rob. & Desm. 
On Verbena hastata , L., and V. urticcefolia. L. 
Racine. Common. 
458. Septoria veronica, Desm. 
On Veronica arvensis , L. Racine. Rather abun¬ 
dant. Specimens on V. Virginica , L., collected 
at Racine and Sharon, are referred here with some 
doubt by Mr. Ellis. 
