FLORA OF MICHIGAN. 63 



In order to secure profitable and satisfactory results from teaching 

 botany, two requisites are necessary, viz.: 1st. The teacher must have 

 been properly taught, and have the rare skill necessary to incite interest 

 in the subject. 2d. He must have the support of the school directors. 

 Without both of these, there is little use in placing botany on the 

 program. 



Again, it may be well to add, that a frequent change of teachers in a 

 country district, as is usually the custom, will be fatal to anything in the 

 line of permanent planting of wild gardens. 



A pamphlet entitled " The New Botany," containing hints on teaching 

 the subject, may be obtained from the author, Dr. W. J. Beal. 



LIST OF MICHIGAN PLANTS WHICH ARE ADMITTED TO THE UNITED STATES 



PHARMACOPOEIA. 



The following species, 54 in all, are admitted to the United States 

 pharmacopoeia. When eaten, many of them are poisonous: 



Acorus Calamus, L. Sweet Flag. 

 Agropyrum repens, Beauv. Couch-Grass. 

 Apocynum cannabinum, L. Indian Hemp. 

 Arctostaphylos Uva-ursi, Spreng. Bearberry. 

 Arctium Lappa, L. Burdock. 

 Artemisia Absinthium, L. Wormwood. 

 Aspidium Filix-mas, Swz. Male Fern. 

 Brassica alba, Boiss. White Mustard. 

 " nigra, Koch. Black Mustard. 

 Cannabis sativa, L. Hemp. 

 Carum Carui, L. Caraway. 



Castanea sativa, Mill., var. Americana, Gray. Chestnut. 

 Chelidonium majus, L. Garden Celandine. 



Chenopodium ambrosioides, L., var. anthelminticum, Gray. Wormseed. 

 Chimaphila umbellata, Nutt. Pipsissewa. ' 

 Cimicifuga racemosa, Nutt. Black Snakeroot. Black Cohosh. 

 Cornus florida, L. Flowering Dogwood. 

 Cypripedium pubescens, Willd. Yellow Lady's Slipper. 

 Datura Stramonium, L. Stramonium. 

 Euonymus atropurpureus, Jacq. Waahoo. 

 Eupatorium perfoliatum, L. Boneset. 

 Gaultheria procumbens, L. Wintergreen. 

 Geranium maculatum, L. Cranesbill. 

 Hamamelis Virginiana, L. Witch-Hazel. 

 Hedeoma pulegioides, Pers. American Pennyroyal. 

 Humulus Lupulus, L. Common Hop. 

 Hydrastis Canadensis, L. Golden Seal. 

 Hyoscyamus niger, L. Black Henbane. 

 Inula Helenium, L. Elecampane. 

 Iris versicolor, L. Blue Flag. 

 Juglans cinerea, L. Butternut. 

 Juniperus communis, L. Juniper. 

 Linum usitatissimum, L. Flax. 

 Lobelia inflata, L. Indian Tobacco. Lobelia. 

 Marrubium vulgare, L. Horehound. 

 Mentha piperita, L. Peppermint. 



*' viridis, L. Spearmint. 

 Phytolacca decandra, L. Pokeweed. Scoke. 

 Podophyllum peltatum, L. Mandrake. 

 Polygala Senega, L. Senega. Seneca Snakeroot. 

 Prunus serotina, Ehrh. Wild Black Cherry. 

 Quercus alba, L. White Oak. 

 Rubus villosus, Ait. Blackberry. 



Rumex crispus, L. Curled Dock. Narrow-leaved Dock. 

 Sambucus Canadensis, L. Elder. 

 Sanguinaria Canadensis, L. Blood-root. 



