ANALYSIS OF THE NATURAL ORDERS, 



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FOUNDED UPON THE MOST OBVIOUS OR ARTIFICIAL CHARACTERS, DE- 

 SIGNED AS A KEY FOB THE READY DETERMINATION OF ANY PLANT, 

 NATIVE, NATURALIZED OR CULTIVATED, GROWING WITHIN 

 THE LIMITS OP THIS FLORA. 



PEOVINCES, CLASSES AND COHORTS. 



SuB-KiNQDOM I. Phaenogamia or Flowering Plants. (Pboyinob.) 

 PJEioviNOE 1. Bark, wood and pith diatinct, the two former 

 as concentrio layers around the latter. Leaves net-vemed. 

 Mower, at least, never completely 3-merotis, its parts njostly 



in 48 and 6b. DICOTYLEDONS or EXOGENS. (Class.) 



Class 1. Flowers vnfh stigmas, and pistils enclosing the 

 ovtflfes, becoming seed-%-e3sefe enclosing the seeds. ANGIOSPEEMS. (Cohort.) 

 Cohort 1. Corolla with the petals distinct. POLYPETALOUS. (A) 



Cohort 2. Corolla with the petals nnite'd. GAMOPETALOUS. (B) 



Cohort 3. Corolla (and often the calyx, also,) wanting. APETALOUS. (C) 

 Class 2. Flowers with open scales instead of pistils (or no 

 pistils at all), the ovules naked. (Pine, Gedai-, Fir, Yew, 



Cypress, etc.) GYMNOSPEEMS. (Cohoet.) 



Cohobt 4. The cone-hearing plants (same as Class 2). CONOIDISjE. (D) 



Provinoe 2. Bark, wood and pith commingled. Zvs.parallel- 

 veined (rarely netted). Fls. Z-merous. MONOCOTYLEDONS or END06ENS. 

 Class 3. Fls. with no glumes. PETALIFEE^ or AGLUMACEOUS. (Cohort.) 

 Cohort 5. Pis. on a spadix, ap'etalous or incomplete. SPADICIFLOEiE. (E) 

 Cohort 6. Flowers complete, with a double perianth. FLOEIDEiE. (F) 



Class 4. Flowers invested with green, alternate glumes 

 instead of the perianth which is wanting or minute. GLUMIFEE^. (Cohort). 

 Cohort 7. The Grasses and Sedges (same as Class 4). GEAMINOIDEjE. (G) 

 BuB-KraoDOM II. Cryptogamia, or Flowerless Plants. (Province.) 

 PROvraoE 1. With stem and leaves distinguishable, and 



containing woody tissue and vessels. ACEOGENS or ANGIOSPOK^. (H) 



PROvmoE 2. With a thallus, often stem-like, but contain- 

 ing cellular tissue only. THALLOGENS or GYMNOSPOE^. (K) 



A Cohort/ 1. POLYPETALOUS. 



* Herbs with the leaves alternate or all radical (11). 



* Herbs with the leaves opposite on the stem (T). _ 



* Shrubs, trees or undershrubs. — Flowers regular or nearly so. (3) 



— Flowers irregular (or fruit a legume), (r) 



2 Polyandrous, — stamens 3 to 10 times as many as the petals, or more. (3) 



3 Oligandrous, — stamens 1 — 2 times as many as the petals or fewer. (4) 

 3 Leaves opposite, (s) 



3 Leaves alternate.---Stamen on the receptacle or the hypogynous corolla, (t) 

 — Stamens and petals on the oalyx-tubo. (vj 



