Feb., 1906.] Check List of Ohio Trees. 459 



51. " velutina Lam. Quercitron Oak. 



52. " nana (Marsh.) Sarg. Bear Oak. S. T. 



53. " marylandica Muench. Black-jack (Oak.) 



54. " imbricaria Mx. Shingle Oak. 



55. " alba L. White Oak. 



56. " minor (Marsh.) Sarg. Post Oak. S. T. 



57. " macrccarpa Mx. Bur Oak. 



58. " platanoides (Lam.) Sudw. Swamp White Oak. 



59. " prinus L. Rock Chestnut Oak. 



60. " acuminata (Mx.) Houd. Chestnut Oak. 



61. " alexanderi Britt. Alexander's Chestnut Oak. 



62. " prinoides Willd. Scrub Chestnut Oak. S. T. 



Order, Urticales. 

 Family, Ulmaceae. 



63. Ulmus americana L. White Elm. 



64. " racemosa Thom. Cork Elm. 



65. " fulva Mx. Slippery Elm. 



66. Celtis occidentalis L. Common Hackberry. 



Family, Moraceae. 



67. Morus rubra L. Red Mulberry- 



68. " alba L. White Mulberry L 



69. Toxylon pomiferum Raf. Osage-orange. I. 



70. Broussonetia papyrifera (L.) Vent. Paper-mulberry. 1. 



Subclass, CHORIPETALAE. 



Order, Ranales. 

 Family, Alaguoliaccae. 



71. Magnoha acuminata L. Cucumber Magnolia. 



72. Liriodendron tulipifera L. Tuliptree. 



Family, Anonaceae. 



73. Asimina triloba (L.) Dun. Papaw. S. T. 



Family, Lauraceae. 



74. Sassafras sassafras (L.) Karst. Sassafras. 



Order, Resales. 

 Family, Hamamelidaccac. 



75. Hamamehs virginiana L. Witch-hazel. S. T. 



76. Liquidambar styraciflua L. Sweet-gum. 



Family, Platanaceae. 



77. Platanus occidentalis L. Sycamore. 



Family, Rosaccae. 

 Subfamily, Pomoideae. 



78. Sorbus americana Marsh. American Mountain-ash. 



79. " sambucifoha (C. & S.) Roem. Elderleaf Mountain-ash. 



80. " aucuparia L. European Mountain-ash. L 



81. Pyrus communis L. Pear. L 



82. Malus angustifoha (Ait.) Mx. Narrowleaf Crab-apple. 



83. " coronaria (L.) Mill. Fragrant Crab-apple. 



84. " malus (L.) Britt. Common Apple. L 



85. Amelanchier canadensis (L.) Medic. Common Juneberry. 



86. " botryapium (L. f.) DC. Swamp Juneberry. S. T. 



87. " rotundifolia (Mx.) Roem. Roundleaf Juneberry. S. T. 



