ANALYSIS OF THE NATURAL ORDERS, 



Pounded on the most obvious or artificial characters : designed as a key foi 



the determination of the Order of any plant, native, or naturalized, 



or cultivated, growing within the limits of this Flora. 



PROVINCES, CLASSES, AND COHORTS. 



Sub-kingdom I. The Flowering Plants. . (See, next. Provinces 1, 2). . .PH.ZENOGAMIA. 



Sub-kingdom H. The Flowerless Plants . . (See the Provinces 3, 4) CBYPTOGAMIA. 



Province 1. Leaves net-veined. Flowers never completely 3- 



parted (mostly ty and fy). Embryo with 2 or more cotyledons. 



Wood (if any) in annual circles.. (See Classes 1, 2) EXOOENS. 



Province 2. Leaves parallel-veined (rarely netted). Flowers 3- 



parted. Bark, wood, and pith commingled. Embryo with but 



one cotyledon.. (See Classes 3, 4) ENDOGENS. 



Province 3. Stem and leaves distinguishable.. (H) ACROGENS. 



Province 4. Stem and leaves undistinguishable. . (K) TBALLOGENS. 



Class 1. Stigmas present. Seeds enclosed in vessels . . () ANGIOSPERMS. 



Class 2. Stigmas 0. Seeds naked (Pines, Firs, Cedars,&c.) (**).. GYMNOSPERMS. 



Clase 3. Flowers without glumes. Perianth colored or green. . (t) . . PETALIFERJE. 



Class 4. Flowers with green alternate glumes. No perianth. .(ttK.GLUMIFERiE. 



* Cohort 1. Corolla with the petals distinct.. (A) Polypetalse. 



* Cohort 2. Corolla with the petals united. .(B) Gamopetalce. 



* Cohorts. Corolla none. Calyx often none.. (C) Apctalte. 



** Cohort 4. The cone-bearing plants (same as Class 2). . (D) Conoids. 



t Cohorts. Fls. on a t-padix, ap'etalous or incomplete. .(E). ..Spadiclflorae. 



t Cohort 6. Flowers complete, with a true perianth.. (F) Floridete. 



tt Cohort?. The Grasses, Grainy &c. (same as class 4)..(G). .Gramiiiolds. 



A. COHORT 1. POLYPETALOUS EXOGEN8. 



Herbs with the leaves alternate or all radical.. (12) 

 Herbs with the leaves opposite on the stem.. (9) 

 Shrubs, trees, or undershrubs..(2) 

 3 Flowers regular or nearly so . . (3) 

 % Flower* irregular (or the fruit a legume) ( 165).. (r) 



3 Polyaudrons, stamens 3 10 times as many as the petals.. (4) 



3 OligandrouB, stamens 1 2 times as many as the petals or fewer. . (0) 



