HITCHCOCK — PLANTS OF AMES, IOWA. 495 



R. FL.ORIDUM, L'Her. Stirp. i. 1784. 

 Woods: not uncommon. 



CRASSULAC1 



Penthorum sedoides, L. Spec. 

 Wet places; common. 



HALORAGEAE. 



MyriophyijLum spicatum, L. spec. 



Ponds: scarce. 



Big Prairie; abundant at Cairo lake and all the larger ponds in the county. 



Proserpinaca PAiiUSTRis, L. Spec. 



Ponds; scarce. 



LTTHRACE.L. 



Amman ni A cocctnea, Rottb. PI. Hort. rar, 1773 (fide Koehne). 



Sloughs and river banks ; scarce. 

 LYTHRUM AIjATUM, Pursh, Fl. 



Low ground ; abundant. 



QNA GRA CEJE. 



Luuwigia polycarpa, Short & Peter, PI. Ky. 2d suppl. 1835. 



Wet places; frequent. 

 Epilobium lineare, Muhl. Cat. 



Wet places; scarce. 

 E. coloratum, Muhl. in Willd. Enum. 



Low ground : abundant. 

 E. adenocaulox, Hausskn. in Oesterr. bot. Zeitschr. xxix. 1879. 



Wet places; frequent. 

 <Enothkea biennis, L. Spec. 



Neglected ground ; abundant. 

 <E. rhombipetala, Xutt. in Torr. & Gray, Fl. i. p. 493. 



Sandy soil; abundant along sand-hills south of Northwest School. 

 <E. serrulata, Xutt. Gen. 



Dry clay soil ; infrequent. 

 Circjea Lutetiana, L. Spec. 



Woods : abundant. 



Echinocystis'echinata (Muhl.) B. S. P. Cat. — Momordica echi- 

 nata, Muhl. Ind. Fl. Lane 1793. £-**, *-=» £~*~<C^ /2 *-;-. }~^, 

 Banks of streams; frequent. 



FICOIDEA^. 



MOLLUGO VKRTICILLATA, L. Spec. 

 Sandy places : common. 



