SERIES I. 



FLOWERING or PH/ENOGAMOUS PLANTS: 



Those which fructify by means of stamens and pistils, 

 and produce true seeds. 



Class I. DICOTYLEDONOUS or EXOGENOUS 

 PLANTS : Distinguislied by having the wood or woody 

 matter of the stem all in a circ^le between pitli and bark, 

 and in yearly layers when the stem is more than one year 

 old : also tlie embryo with a pair of cotyledons or seed 

 leaves (or several in Pines, &c.). Generally known at once 

 by having netted-veined leaves. Parts of tlie flower seldom 

 in threes, most commonly in fives or fours. See Lessons, 

 p. 183. Tills class includes all our ordinary trees and 

 shrubs, and the greater part of our herbs. 



Subclass I. ANGI03PERM0US : including all of the 

 class whicli have their seeds ina pericarp, or tlieir" ovules in 

 a closed ovary, i. e. all except the Pine and Cycas families. 



I. POLYPETALOUS DIVISION. Includes the families which 

 liave, at least in some species, both calyx and corolla, the latter 

 with their petals separate, i. e. not at all united into one body. Yet 

 some plants of almost all these families have apetalous flowers. 



1. RANUNCULACE^, CROWFOOT FAMILY. 



Not perfectly distinguished by any one or two particular marks, 

 but may be known, on the whole, by having an acrid watery juice 

 (not milky or colored), numt^rous st£\niens, and usually more tlian 

 one piitil, all the parts of the flower separate from each oilier, and 

 inserted "on the re^^ep^laoie. The'bnlk of ihu seed is albumen, the 

 embryo being very fmaFl. The plants are herbs or a few barely 

 shrubby. Many are cultivated for ornament. The following are 

 the common genera, with their chief distinctions. 



5 1. Scpils valcnie or with their edr/es turned inmord in the hnd. Petnh none or 

 minute. Pistilii mtinij, ,l-iieeded. becoming \tJcimcs. Leaves opposite : tile 

 plants mostly tlimbinij bjftheir leafstalks. 



1. CLEMATIS. Sepals commonly i. sometimes several, petal-like. Akenes 

 tipped witli the persistent style or a part of it. ■ 



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