WESSONS IN BOTANT 



ANALYSIS OF THE NATURAL ORDERS, 



Being a Key for the ready determination of the Natural Order of any plant 

 native or cultivated, growing within any State east of the Mississippi river^ 

 or bordenng on its western shore. 



Ho. A star (*) prefixed to the name of the Order, aenotee that that Order, with its 

 genera and species, is described in its place in the Flora. The Orders not thus marked are 

 not noticed in the Flora beyond this Table. The Orders are here numbered to correspond with 

 tlic "Class Book of Botany." 



CLASSES AND COHORTS 



] Flowering Plants... 2. Sub-kin y<lom, PH JiNOGAMIA. 



1 Flowerless Plants ---- Ferns, Mosses, Lichens, Mushrooms, 



Sea-weeds, &c. (not further noticed here). Sub-kingdom, CRYPTOG AMI A- 



2. Leaves net-veined. Flowers never completely 3-parted ...3. EXOGENS. 



Leaves parallel-veined (rarely net veined). Flowers 3-parled.... 4. Ey DOG ENS. 



A ORDERS OF THE POLYPETALOUS EXOGENS 



1. Herbs.... 2. 



1. Shrubs, trees, or undershrubs. .3. 

 2. 1,/caves alternate or all radical. . . .15. 

 j>2. Leaves opposite on the stem ---- 11. 



3. Flowers regular or nearly so ---- 4. 



3. Flowers irregular (or fruit a legume, 180) ..57 

 4. Stamens 8 times as many as the petals, or more.. . 5. 

 4. Stamens 1 or 2 times as many as the petals, or fewer.. 7. 



5. Leaves opposite .... CO. 



B. Leave* alternate. . A. 



