VI. ARTIFICIAL ANALYSIS OF THE NATURAL ORDERS. 



Series I. PHvENOGAMOUS oh FLOWERING PLANTS. 



Plants furnished with flowers, consisting of stamens and pistils, 

 and producing seeds which contain an embryo plant. 



Class I. DICOTYLEDONOUS or EXOGENOUS PLANTS. 



Stem composed of bark and pith, with an interposed layer of woody 

 fibro and vessels, and increasing in diameter, in all perennial stems, 

 by the annual deposition of a new layer between the wood and bark. 

 Leaves netted-veined, commonly articulated with the stem. Floral en- 

 velopes usually in fours or fives. Cotyledons two, rarely more. 



Subclass I. ANGIOSPERMOUS EXOGENOUS PLANTS. 



Ovules contained in an ovary, and fertilized by the action of the pollen, 

 through the medium of a stigma. Cotyledons two. 



Division I. POLYPETALOUS EXOGENOUS PLANTS. 



Floral envelopes double, consisting of both calyx and corolla ; the latter of 

 separate petals. 



# Stamens and petals free from the calyx, hypogynous or nearly so, 



■*- Stamens more than twice as many as the petals. 

 Leaves opposite, entire. Page 



Leaves dotted. Stamens separate. Stigma small. HYPERICACE2E, 38 



Leaves dotless. Stamens united below. Stigma radiate-peltate. CLUSIACEiE, 42 



Leaves alternate. 



Ovaries more than one, each 1-celled. 

 Stems woody. Petals 6 or more, in two or more rows. 

 Petals imbricated in the bud. 



Anthers 4-celled. Dioecious vines. MENISPERMACE^E, 15 



Anthers 2-celled. Flowers perfect. MAGNOLIACEiE, 12 



Petals valvate in the bud. Fruit pulpy. Albumen ruminated. ANONACEJ3, 14 



Herbs. Ovaries embedded in the top of the large receptacle. NELUMBIACE^E, 18 



Ovaries borne on the receptacle. Sepals and petals deciduous. RANUNCULACE/E, 2 



Sepals and petals persistent. CABOMBACE.E, 18 



