COMPARISON OF FLORA OF NEBRASKA AND IOWA. 



581 



Jnglans nigra {hlack walnut). 

 Junipenis communis (juniper). 



Virgiuiana ()-ed cedar). 

 Lonicera flava (yellow honeysuckle). 

 Morus rnbra (red mulberry). ' 

 Neguudo aceroides (box-elder). 

 Platauus occidentals (sycamore). 

 Poj)ulu8 monilifera (cottomvood). 

 Prunus Americana (ivild plmn). 



Pennsylvauica (icild red chary). 

 Prunus serotiua (black cherry). 



Virgiuiana (choke cheery). 

 Qnercus alba (white oak). 



bicolor (aicamj) white oak). 



coccinea (scarlet oak). 



macrocarpa (burr oak). 



nigra (black jack). 



obtusiloba (post oak). 



I)alustri8 (pin oak). 



prinus (var. acuminata) (yellow 



chestnut oak). 



rubra (red oak). 



Rhus aromatica (fragrant sumac). 



glabra {smooth sumac). 



toxicodendron (poison ivy). 



typhina (staghorn sumac). 



Ribes cynosbati (prickly gooseberry). 



florida (wild black currant). 



rotundifolia (smooth gooseberry). 

 Robinia pseudacacia (black locust). 

 Rosa blanda (early ivild rose). 

 Rubun occidentalis (black raspberry). 



strigosa (red raspberry). 



villosus (blackberry). 

 Salix cordata (heart-leaved willow). 



discolora (glaucous willoiu). 



humilis (prairie willoto). 



longifolia (long-leaved willow). 



nigra (black wHImo). 



tristis (du-arfgrey tvillotv). 

 Sambucus Canadensis (common elder). 



pubena (red-berried elder). 

 Smilax hispiola (greenbrier). 

 Spiraea opulifolia (nine bark). 



salicifolia (meadow sioeet). 

 Staphylea trifolia (bladder nut). 

 Sympborocarpus occidentalia (wolfbeiry). 

 Tilia Americana (bassivood). 

 Ulmus Americana (ivhite elm). 



fulva (red, or slippery elm). 

 Viburnum lentago (sheep-berry). 



pubescens (downy arrowwood). 

 Vitis cordifolia (winter grape). 



II.— FOUND IN IOWA AND NOT IN NEBRASKA. 



Acer dasycarpum (silver leaf maple). 

 Betula nigra (red birch). 

 Carya olteviformis (pecan). 

 Diospyros Virginiana (pasimmon). 

 Dirca palustris (leather wood). 

 Frasinus sambncifolia (black ash). 

 Juglans cinerea (6M«erHM<)- 

 Ostrya Virgiuica (iron-wood). 

 Pinus stTohns (tvhiie 2)ine). 

 Populus grandidentata (large-toothed flsjj 

 en). 

 tremuoides (American aspen). 



III. 



Pyrus coronaria (crab apple). 

 Quercus imbricaria (laurel oak). 

 Rhamnus lanceolatus (narrow-leaf buck- 



thorn). 

 Salix petiolaris (petioled tvillotv). 



livida (livid tvillotv). 

 Sasafras officinale (sassafras). 

 Taxus baccata (var. Canadensis) (yew). 

 Vaccinum vaccillans (Lotv bluebeiry). 

 Viburnum pubescens (Downy arrotv- 



tvood). 

 Vitis riparia (frost grape). 



FOUND IN NEBRASKA AND NOT IN IOWA. 



Abies Engelmatmii (Enyelmann spruce). 



Donglasii (Douglas spruce). 

 Alnus serrulata (smooth alder). 



viridis (green alder). 

 Betula ijumila (dwarf birch). 



occidentalis (western birch). 

 Carya porcina (pig tiut). 

 Cercocarpus parvifolius (mountain mahog- 

 any). 

 Coruuscircinata (round-leaved dogwood). 

 pubescens (dotvny dogivood). 

 stolonifera (wild red osier). 

 Coryllus rostrata (beaked hazel-nut). 

 Cupressus thyoides (tvhite cedar). 

 Euonymua Americanus (burjiing bush). 

 Fraxinus pubescens (red ash). 

 Gleditacbia monosperma (one-seeded honey 



locust). 

 Lonicera grata (stveet honeysuckle). 

 hirsuta (hairy honeystickle). 

 involucrata. 

 Morus alba (tvhite mulberry). 

 Pinus ponderosa (heavy yellotv pine). 

 Populus angulata (angular twig poplar). 



balsamifera (Balm of Gilead). 

 Prunus Chicasa (Chickasatv plum). 

 pumila (dwarf cherry). 



Quercus castanea (chestnut oak). 



prinoides (ch'mquapin oak). 

 Rhamnus alnifolius, (alder-leaved buck- 

 thorn). 

 Rhus copallina (dtvarf sumac). 

 Ribes hirtellum. 

 lacustre. 



aureum (Missouri currant). 

 Rosa Carolina (stvamp rose). 

 lucida (dwarf wild rose). 

 setigera (climbing wild rose). 

 Rubus trifiorus (dwarf raspberry). 

 Salix angustata. 

 Candida, 

 pedicellaris. 

 rostrata. 

 Shepandia argente (buffalo berry). 



canadensis. 

 Smilax glauca. 



rotundifolia. 

 Ulmus alata (tvhahoo). 



racemosa (corky white elm). 

 Vaccinum ctespitosum. 



oxycoccus (small cranierry). 

 Vitis aestivalis (summer grape). 

 Wistaria frutescens (American tcistaria). 



