72 
IOWA ACADEMY OF SCIENCE 
VITACEAE. 
PSEDERA Neck. 
606. P seder a quinquefolia (L.) Greene. Virginia Creeper. Common 
in woodlands. 
607. Psedera vitwcea (Knerr) Greene. With the above. 
YITIS (Tourn) L. 
608. Vitis cinerea Engelm. Sweet or Downy Grape. Rare in wood- 
lands. 
609. Vitis cordifolia Michx. Frost Grape. Not common. 
610. Vitis vulpina L. Riverside Grape. Common in woods. 
TILIACEAE. 
TILIA (Tourn) L. 
611. Tilia americana L. Basswood. Common in woodlands. 
MALVACEAE. 
ABUTILON (Tourn) Mill. 
612. Abutilon theophrasti Medic. Velvet Leaf. Common in waste 
places. 
SIDA L. 
613. Sida spinosa L. Prickly Sida. Not uncommon in sandy fields. 
MALVA (Tourn) L. 
614. Malva rotundifolia L. Cheeses, Dwarf Mallow. Very abundant 
everywhere, in yards and fields. 
HIBISCUS L. 
615. Hibiscus militaris Cav. Halberd-leaved Rose Mallow. Not rare 
in marshy places. 
616. Hibiscus trionum L. Bladder Ketmia, Flower-of-an-Hour. Com- 
mon in fields and roadsides. 
