PLANTS OF IOWA 197 



Kneiffia, Spach. 



2547. K. fruticosa, (L.) Raimann. Common Sundrops. 

 Common. 



Meriolix, Raf. 



2548. M. scrrulata, (Nutt.) Walp. Tooth-leaved Primrose. 

 In dry places. 



Gaura, L. 



2549. G. parviflora, Dougl. Small-flowered Gaura. 

 Not rare, in dry soils. 



2550. G. coccinea, Pursh. Scarlet Gaura. 

 Infrequent. 



2551. G. biennis, L. Biennial Gaura. 

 Dry soil. 



ClRC/EA, L. 



2552. C. lutetiana, L. Enchanter's Nightshade. 

 Common in deep woods. 



2553. C. alpina, L. Smaller Enchanter's Nightshade. 

 In deep woods. Not common. 



HALORAGIDACE.E. WATER-MILFOIL FAMILY. 



Proserpinaca, L. 



2554. P. palustris, L. Mermaid-weed. 

 Not common ; in wet places. 



Myriophyllum, L. 



2555. M. spicatum, L. Spiked Water-milfoil. 

 In ponds. 



2556. M. verticillatum, L. Whorled Water-milfoil. 

 Not common. 



2557. M. heterophyllum, Michx. Various-leaved Water- 



milfoil. 

 Infrequent. 



2558. M. pinnatum, (Walt.) B. S. P. Pinnate Water-milfoil. 

 Not infrequent. 



