I 10 



POPULAK KLOKA. 



seoils ; but ombryos nre represontod in tlio fij,'uros, to sbow tlie student what ia 

 meant. ¥or the other claj's, sec; \k 207. 



:- r 



KEY TO TlIK TAMILIKS oR OKDKKS OK CLASS I. 



SSUBCLASH I.-ANTJIOSI'KRMS. 

 With a regular pistil, and n seed-vessel in wliich tlie seeds are formed. See Pur, 219, 311. 



I. Folypetalous Division. Calyx and condla both present ; the petals entirely separate 



A. Stamkns mouk than id. 

 1. Stamens on the rcoptacle, uurountrttd (itker irit/i the atliix, coroUa, or omry. 



Pistils more than i, entirely poparate from each other. 



llerhs, with perfect tlowers. Vago 



Leaves not .shicld-shapLtl, generally cut, toothed, or compound, C'hOwkoot Familt. 116 



Leaves shield-shaped, fixed hy their middle, Watkk-shielI). 125 



Woody vines, with di<BciouH tinwers, shield-sliajyid leaves fixed near the ed;,'e, IMoonskkd F. 122 



Small trees with perfect tlowers, 6 ]K'tals, and entire leaves, Cl'.sTAiil>-Al'l'I,K F. 122 



Pistils nuniy, grown together one above or over another on a long receptacle, A1a(;noi,ia F. 121 



Pistils several, sunk in the flat top of a broad receptacle, Nem'MBo. 125 



I'iatils 3 to 6, the ovaries partly grown together in a cii'cle, making 



A bladdery pod of several ci Us, Fennel-flower in ("noWFooT F. 116 



A several-horned i -celled lux', Mkjnonette F. 129 



Pistd only i, at least having only i ovary ; and that 



fSimj)le and i -celled, only i placenta or seed-bearing part. 



Petals 6 to 9, large. Leaves 1 or 2, many-lobed, May- Apple in I'ahberry F, 123 



Petals 4 and irregular, or else very sinwll, C'ltoWKooT F. 116 



Compound, with many seeds on a placenta from the bottom of the cell, Plusi.ane F. 134 



Compound, if icelled, then with two or more seed-bearing lines on the walls. 



Calyx falling when the flower opens ; sej)als fewer than tlie petals, PorPY F. 126 



Calyx falling after blossoming. Style i : ovary several-celled. 



The 5 sepals edge to edge in the bud. Fruit dry, i-seeded, LiNDEN F. 137 



The sepals overlapping in the bud. Fruit many-celled, Okange F. 138 



Calyx remaining beneath the fruit. 



Leaves with transparent or dark-coloured dots, all opposite, St. John's-wokt F. 132 



Leaves not dotted. Ovary and pod i-celled, Ciarus F. 131 



Leaves not dotted. Ovary several-celled. Aquatic or bog plants. 



Leaves pitcher-shaped. Style umbrella-like, SlUE.s.\Dr)LE-Fi,o\VER F. 125 



Leaves rounded and heart-shaped. Style none, Water-Lily F, 124 



2. Stamens connected with the bottom of the petals, and these hmme on the receptacle. 



Filaments united in a pretty long tube or column : anthers kidney-shaped, i-celled, Mallow F. 135 

 Filaments united only with the base of the petals : anthers oblong, 2-celled, Camellia F. 136 



