Plants of Boone County, Kentucky. foi 
MENISPERMACEAE: 
Menispermum canadense L. Thickets along streams, common. 
BERBERIDACEAE: 
Podophyllum peltatum L. Common in rich woods. 
Jeffersonia diphylla (L.) Pers. Woods, common. 
Caulophyllum thalictroides (L.) Michx. Woods, infrequent. 
LAURACEAE: 
Sassafras varufolium (Salisb.) Kuntze. In woods, becoming scarce. 
Benzoin aestivale (l.) Nees. Damp woods, not rare. 
PAPAVERACEAE: 
Sanguinaria cunadensis L. Open woods, common. 
Stylophorum diphyllum (Michx.) Nutt. In rich woods, common 
locally. 
FUMARIACEAE: 
Dicentra Cucullaria (.) Bernh. Common in woods. 
Dicentra canadensis (Goldie) Walp. With the last. 
Corydalis flavula (Raf.) DC. Rich soil, not uncommon. 
CRUCIFERAE: 
Lepidium virginicum L. Waste places and fields, common. ' 
Capsella Bursa-pastoris (L.) Medic. Abundant in waste and culti- 
vated ground. 
Brassica alba (L.) Boiss. About dwellings, infrequent. 
Brassica nigra (.) Koch. With the last, but much more common. 
Sisymbrium officinale (.) Seop. var. leiocarpum DC. Common in 
fields. 
Hesperis matronalis L. A rare escape. 
Radicula palustris (L.) Moench. Common on river-shores. 
Radicula Armoracia (.) Robinson. An occasional escape. 
Barbarea vulgaris R. Br. Roadsides, infrequent. 
Iodanthus pinnatifidus (Michx.) Steud. Rich soil near the river. 
Dentaria diphylla Michx. Woods, not common. 
Dentaria laciniata Muhl. Very common in woods. 
Cardamine bulbosa (Schreb.) BSP. Occasional in wet places. 
Cardamine Douglassii (Torr.) Britton. Rich woods in early spring. 
Cardamine pennsylvanica Muhl. Damp ground, rather scarce. 
Arabis laevigata (Muhl.) Poir. Rocky woods, infrequent. 
CAPPARIDACEAE: 
Polanisia graveolens Raf. Gravelly river-shores, common. 
CRASSULACEAE: 
Penthorum sedoides L. Muddy shores, common. 
Sedum ternatum Michx. Rocky woods, common. 
