BOTANf. -25 



&EXERA-L RutES FOR AVOIDING PoiSOXS. 



Plants not poisonous. 



1. Plants with a glume calyx, never poisonous. As 

 Wheat, Indian-corn, Foxtail-grass, Sedge-grass, Oats. 

 Linneus. 



2. Plants whose stamens stand on the calyx, never poi- 

 sonous. As Currant, Apple, Peach, Strawberry, Thorn. 

 Smith, page 392. 



3. Plants with cruciform flowers, rarely if ever poison- 

 ous. As Mustard, Cabbage, Watercress, turnip. Smith, 

 page 487. 



4. Plants with pupUionaceoitt flowers, rarely if ever 

 poisonous. As Pea, Bean, Locust-tree, Wild-indigo, 

 Clover. Smith, page 446. 



6. Plants with labiate corols hearing seeds without pe- 

 ricarps, never poisonous. As Catmint, Hyssop, Mint, 

 Motherwort, Marjoram. Smith, page 434. 



6. Plants with compound flowers, rarely poisonous. As 

 Sunflower, Dandelion, Lettuce, Burdock. Milne. 



Poisonous plants. 



1. Plants with 5 stamens and one pistil, with a dull- 

 coloured lurid corol, and of a nauseous sickly smell, al- 

 ways poisonous. As Tobacco, Thorn-apple, Henbane, 

 Nightshade. The degree of poison is diminished wliere 

 the flower is brighter coloured and the smell is less nau- 

 seous. As potatoe is less poisonous, though of the same 

 genus with nightshade. Smith, page 415. 



2. Umbelliferous plants of the arjua'tic kind and of a nau- 

 seous scent are always poisonous. As Water-hemlock, 

 Cow-parsley. But if the smell be pleasant, and they 

 grow in dry land, they are not poisonous. As Fennel, 

 Dill, Coriander, Sweet-cicely. Smith, page 416. 



3. Plants with labiate corols, and seeds in capsules, fre- 

 quently poisonous. As Snapdragon, Foxglove. 



4. Plants from which issues a milky juice on being hro- 

 ken are poisonous, unless they bear compound flowers. 

 As Milkweed, Dogbane, Milne's Contorts and Lactes- 

 centia. 



5. Plants having any appendage to the calyx or corol, 

 and twelve or more stamens, generally poisonous. As 

 Columbine, Crowfoot. Linneus. 



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