112 MISSOURI BOTANICAL GARDEN BULLETIN 
Class 27. Demulcents—Oily or mucilaginous substances 
_which sooth\and protect the parts to which they are applied. 
Hound’s tongue (Cynoglossum officinale), comfrey (Sym- 
phytum officinale), rice (Oryza sativa), flax (Linum usita- 
tissimum), rib grass (Plantago lanceolata). 
Class 28. Galactagogues—Agents which are supposed to 
increase the lacteal secretion. Castor-oil plant (Ricinus com- 
munis), cotton (Gossypium herbaceum), fennel (Foenicu- 
lum vulgare). 
Class 29. Galactophyga—Agents which diminish or sup- 
press the lacteal secretion. Belladonna (Atropa Belladonna), 
tobacco (Nicotiana Tabacum). ; 
Class 30. Anthelmintics—Agents which destroy (vermi- 
cides) or expel (vermifuges) worms inhabiting the intestinal 
tract. Castor-oil plant (Ricinus communis), thyme (Thy- 
mus vulgaris), wormwood (Artemisia vulgaris), Mexican tea 
(Chenopodium ambrosioides), squash (Cucurbita maxima). 
Class 31. Antiseptics and Disinfectants—Agents which 
arrest the development of or destroy putrefactive and patho- 
genic bacteria. Peppermint (Mentha piperita), thyme 
(Thymus vulgaris), eucalyptus (Eucalyptus globulus), 
sweet gum tree (Liquidambar Styraciflua). 
Class 32. Poisons. Water hemlock (Coniuwm macula- 
tum), stonecrop (Sedum acre), poison ivy or poison oak 
(Rhus Toxicodendron), belladonna (Atropa Belladonna), 
_ water hemlock (Cicuta maculata), purple and white-flowered 
jimson weed (Datura Tatula and D. Stramonium), corn 
cockle (Agrostemna Githago), pokeweed (Phytolacca de- 
candra). 
Class 33. Aromatics. Peppermint (Mentha piperita), 
sweet gum tree (Liquidambar Styraciflua), ground ivy 
(Nepeta hederacea), silky cornel (Cornus Amomum), white- 
flowered sage (Salvia officinalis), hop tree or shrubby trefoil 
(Ptelea trifoliata), fennel (Foeniculum vulgare), spearmint 
(Mentha spicata), horse mint (Monarda punctata), penny- 
royal (Hedeoma pulegioides). 
A large number of other medicinal plants with such varied 
properties that classification according to physiological action 
1s not feasible, complete the marginal plantations and occupy 
the small beds in the center, 
