i 

 358 ; 



Spiranthes cernua (L.) Richard. (2992, 2971) Ladies' Tresses j 



Liparis loeselii (L.) Richard. (2507) Twayblade | 



SaHcaceae. Willow Family. I 



Salix amygdaloides Anders. (3172, 3175) Peach-leaved Willow ! 



Salix lucida Muhl. (2900, 3060, 3170) Shining Willow ! 



Salix serissima (Bailey) Fernald. (2995) Autumn Willow ' 



Salix longifolia Muhl. (3080) Sand-bar Willow 



Salix cordata Muhl. j 



Salix glaucophylla Bebb. (3033, 3036) ■ 



Salix syrticola Fernald. (2459, 3156) 



Salix pedicellaris Pursh. (3174) j 



Salix discolor Muhl. Pussy Willow 



Salix Candida Fluegge. (2758) Hoary Willow I 



Populus tremuloides Michaux. (3104) Trembling Aspen j 



Populus candicans Alton. (2780, 3155) Balm of Gilead ' 



Populus deltoides Marsh. (3035)' Cottonwood ; 



Juglandaceae. Walnut Family. J 



Juglans nigra L. (311 7) Black Walnut : 



Carya ovata (Mill.) K. Koch. (3120) Shag-bark Hickory ' 



Betulaceae. Birch Family. j 



Betula alba papyrifera (Marsh.) Spach. (3097) White Birch j 



Betula pumila L. (2493, 2500, 2813) Swamp Birch i 



Fagaceae. Beech Family. 



Quercus alba L. (3125) White Oak 



Quercus macrocarpa Michaux. (31 19) Bur Oak 



Quercus velutina Lam. (2981) Black Oak 



Santalaceae. Sandalwood Family, 

 Comandra umbellata (L.) Nutt. (2790) Bastard Toad-flax 



Polygonaceae. Buckwheat Family. 

 Rumex britannica L. (3231) Great Water Dock 

 Rumex acetosella L. (3063) Sheep Sorrel 

 Rumex crispus L. (3095) Curled Dock 

 Polygonum tenue Michaux. (3206) Smartweed 

 Polygonum lapathitolium L. (=P. incarnatum Ell.) (3227) 

 Polygonum amphibium hartwrightii (A. Gray) Bissell. (3179) 

 Polygonum muhlenbergii (Meisn.) Wats. (3247) 



