30 



THE FLORA OF IOWA. 



Popiilus 



758. tremuloides, Michx. 



759. grandidentata, Michx. 



760. monilifera, Ait. 



CONIFKRA^. 



Pilius 



761. Strobus, L. 

 Junipcru'i 



762. communis, L. 



763. Virginiana, L. 

 Ta-xm 



764. baccata, L., var. Canaden- 



sis, Gray. 

 AllACE T.;. 

 ArisieiMjl 



765. tripiiyllum, Torr. 



766. Dracontium, Scliott. 

 SyinploL'arpiis 



767. fcEtidus, Salisl). 

 Acorns 



768. Calamus, L. 



LEMNACE 'K. 

 Lemiia 



769. trisulca, L. 



770. minor, L. 



771. polyrrhiza, L. 



TYPHACE/li',. 

 Typlia 



772. latifolia, L. 

 Sparj^aniutn 



773. eurycarpum, Engelm. 



774. simplex, Hudson, var. Nut- 



tallii, Engebii. 



775. androcladum, Engelm.* 



SrAIAI>ACE>K. 



Naias , 



776. flexilis, Rostk. 

 Zannicliellia 



777. palustris, L. 

 Potanioffcton 



Poplar. Asp«n. 



758. American Aspen. 



759. Large-toothed A. 



760. Cotton-wood. 



PINE EAMItY. 



Pino. 



761. White P. 

 Juniper. 



762. Common J. 



763. Red Cedar or Savin. 

 Ye'w 



764. Ground Hemlock. 



ARUBI FAMILY. 



Indian TuTiiip. Dragon-Arum. 



765. Indian Turnip. 



766. Green Dragon. 

 Skunk Cal>bag:c. 



767. Skunk C. 

 S-vvf<t Flag. ('alanni~. 



768. Sweet F. 



" DUCKWEED FAMILV. 



Daokwerd, Dik^Iv's-uu at. 



769. Duckweed. 

 770. 



771. 



CAT-TAII^ FASilLV. 

 Cat -tail Flag. 



772. Common Cat-tail. 

 IJur-rcrd. 



773. Bur-reed. 

 774- 



775. 



PONDWEEl) FAMILY. 



Naiad. 



776. Naiad. 

 Ilorncrl l*ondwciMl. 



777. Horned P. 



Pondwecd. 



