28 



*Hyoscyamus niger Linn. Henbane, leaves and inflorescence. 



Juniperus communis Linn. Juniper berries, fruit. 



Lactuca Canadensis Linn. Wild lettuce, leaves and inflorescence. 



Lobelia inflata Linn. Lobelia, herb and seed. 



Menispermum Canadensis Linn. Yellow parilla, rhizome and roots. 



Mentha piperita Linn. Peppermint, leaves and inflorescence. 



Monarda fistulosa Linn. Wild bergamot, leaves and inflorescence. 



Phytolacca decandra Linn. Poke root and berries. 



Podophyllum peltatum Linn. Mandrake, rhizome and roots. 



Prunus serotina Ehrh. Cherry, bark. 



Quercus alba Linn. White oak, bark. 



*Riclnus communis Linn. Castor bean, seed and leaves. 



Rubus villosus Alton R. Canadensis, Linn, and R. trivalis, Michx. 



Blackberry, root bark. 

 *Salvia officinalis Linn. Sage, herb. 

 Sanguinaria Canadensis Linn. Blood root, rhizome. 

 Sassafras variifoliinn (Salisbuiy) O. Kuntze. Sassafras bark, root, 



bark. 

 Satureja hortensis Linn. Summer savory, herb. 

 Taraxacum officinale Weber. Dandelion, root. 

 Thuja occidentalis Linn. Arbor vitae, leaves. 

 Thymus vulgaris Linn. Thyme. 

 Tsuga Canadensis (Linn.) Caa'r. Hemlock, barli;. 

 Ustilago Maydis Leveille. TJstilago, entire finigous plant. 

 *Valeriana officinalis Lirui. Valerian, rhizome and rootlets. 

 *Veratrum album Linn. White hellebore, rhizome and rootlets. 

 Vei'atrum viride Alton. Veratrum, rhizome and rootlets. 



Chemical constitutents but partially determined; physiological action 

 fairly well known: 



*Gactus granUiflorus Liim. Cactus grandiflorus, branches. 



Cannabis sativa Linn. var. Americana. American hemp, inflorescence. 



Spigelia Marylandlca Linn. Pink root, rhizome and rootlets. 



Chemical constituents regarded as well known; physiological action 

 not systematically investigated or Avell understood: 



Acorns Calamus Linn. Calamus, rhizome. 



^'Ksculus Hippocastanum Linn. Horse chestnut, bark and seed. 



