601 



94- Nyniphaca advena Ait. 



In the Nymphaeetum of the reed swamp ; abundant and con- 

 spicuous. 



95. Castalia odorata (Ait.) Woodville & Wood 



W'\\\\ Nyuiphaca advena, to which it appears ecologically 

 equivalent ; common or even abundant. 



Ranuiiculaccae 



96. Ranunculus dclphinifolius Torr. 



Abundant in Skokie Stream ; the seedlings frequent in open 

 or sheltered moist depressions of the swamp meadow'. 



97. R. seek rat us L. 



In meadow and swamp meadow ; rare. 



98. R. Pennsyh'anicus L. f. 



Here and there in the swamp meadow ; somewhat rare. 



99. TJialictruni rcvolutuni DC. 



In the meadow ; frequent. 



100. Caltlia palustris L. 



In the swamp meadow ; rare. 



Crucifcrac 



loi. Radicula palustris (L.) Moench 



In the swamp meadow' ; abundant. 

 Radicula palustris, var. Jiispida (Desv.) Robinson 



Growing with the species proper, and abundant. Of the 

 hundreds of specimens examined, none was found showing any 

 intergradation with the species itself. 



102. R. aquatica (Eat.) Robinson 



Abundant in Skokie Stream, especially west of Glencoe. Ap- 

 pearing to renew itself chiefly by its detaching leaves, which take 

 root and propagate new plants, — a habit already noted by other 

 observers. 



103. Cardaniine hulbosa (Schreb.) BSP. 



In the reed sw-amp, swamp meadow, and moist parts of the 

 meadow- ; common. 



104. C. pennsylvanica INIuhl. 



In the reed swamp and swamp meadow^ ; common. Numer- 

 ous seedlings develop in late summer and flower until late 

 autumn. 



