17 



8alix Missouriensis Bebb. Missouri Willow. 



Salix adenophylla Hook. Pussy Willow. 

 Juglandaceas — 



Juglans nigra L. Black Walnut. , 



Juglans cinerea L. Butternut. 



Hicoria Pecan (Marsh) Britton. Pecan. 



Hicoria minima (Marsh) Britton. Bitternut. 



Hicoria aquatica (Michx. f.) Britton. Water Hickory. 



Hicoria ovata (Mill.) Britton. Shagbark Hickory. 



Hicoria laciniosa (Michx. f.) Sarg. Big Shagbark Kingnut. 



Hicoria alba (L.) Britton. Mockernut. 



Hicoria microcarpa (Nutt.) Britton. Small-fruited Hickory. 



Hicoria glabra (Mill.) Britton. Pignut Hickory. 

 Betulaceae — 



Carpinus Caroliniana Walt. Blue Beech. Water Beech. Hornbeam. 

 Ironwood. 



Ostrya Virginiana (Mill.) Welld. Ironwood. Hop-hornbeam. 



Corylus Americana. Walt. Hazelnut. 

 ^ Corylus rostrata Ait. Beaked Hazelnut. 



Betula populifolia Marsh. American White Birch. 

 Fagacese — 



Castanea dentata (Marsh) Borkh. Chestnut. 



Quercus rubra L. Red Oak. 



Quercus palustris Du Roi. Pin. Oak. 



Quercus coccinea Wang. Scarlet Oak. 



Quercus velutina Lam. Black Oak. Quercitron. 



Quercus Marylandica Muench. Blackjack. 

 ^Quercus phellos L. Willow Oak. 



Quercus imbricaria Michx. Shingle Oak. 

 ^Quercus digitata (Marsh) Sudw. Spanish Oak. 



Quercus alba L. White Oak. 



Quercus minor (Marsh) Sarg. Post or Iron Oak. 



Quercus macrocarpa Mich. Mossy-cup Oak. 



Quercus platanoides (Lam.) Sudw. Swamp White Oak. 

 .-—Quercus Michauxii Nutt. Cow Oak. Basket Oak. 

 Ulmaceae — 



Ulmus Americana L. American Elm. 



Ulmus alata Michx. Winged Elm. Wahoo. 



Ulmus fulva Michx. Red Elm. Slippery Elm. 



Celtis occidentalis L. Hackberry. 

 Moracese — 



Morus rubra L. Red Mulberry. 

 Anonaceae — 



Asimina triloba (L.) Dunal. North American Pawpaw. 

 Lauracese — 



Sassafras Sassafras (L.) Karst. Sassafras. 

 Platanaoese — 



Platanus occidentalis L. Plane Tree. Sycamore. 

 Pomacese — ' 



Mains angustifolia (Ait.) Michx. Narrow-leaved Crab Apple. 



Mains coronaria (L.) Mill. American Crab Apple. 



Amlenchier Canadensis (L.) Medic. June-berry. Shad-berry. 



Cratfegus Crus-galli L. Cockspur Thorn. Newcastle Thorn. 



Crataegus punctata Jacq. Large-fruited Thorn. 



Crataegus coccinea L. Scarlet Thorn. Red Haw. 



