Key to the Orders. 15 



PACtE 



S!i. Style 1, pod in the calyx and 1-celled at maturity Lythracecp.' Sf) 



'.10. Ovules more than one in each cell iS)l . 



;iO. Ovules only one in each cell (93). 



vn. Ovary 1-celled; niany-ovuled from the base Poitnlacacecr. 3S 



91. Ovarj- 1-celled; placentas 2 or ;5, parietal Saxi/ragaieie. hi 



91. Ovary 2-several-celled 92 . 



92. Stamens on a flat disk which covers the ovary; shrubs Celastracea. 7(i 



92. Stamens inserted on the calyx; styles 2-3, distinct Saxifyagacecr. .'iT 



93. Stamens 10 or .') ; fruit a pome; styles 1-many Rosacea". (iO 



93. Stamens 4; styles and stigmas 1; chiefly shrubs Coinacea". cS9 



93. Stamens -'> ; fls. in umbels; styles 2; fruit dry i'mhelirffrce. SO 



9:!. Stamens, etc., as the last ; styles usually more than 2, fr\nt 



a drupe -Iraliaretr. s") 



GAMOPETALOUS GROUP. 



94. Stamens more numerous than the lobes of the torolla (9.');. 



94. Stamens fertile as many as and opposite the coroWaAohes. .Pi- iniii la rea. 9.'> 



94. Stamens fewer than, or as many as, and alternate with the corolla-lobes 99. 



9.'). Ovary 1-celled, with one parietal placenta Legiitniiioscr. (& 



9.1. Ovary 2-celled, with a single ovule in each cell Polvgalacecr. 7cS 



9.'). Ovary 3-many-celled 96 . 



9r). Stamens nearly or quite free from the corolla; stj'le ■i^\\\%\c . . . . F.iicacece. 90 



9(i. Stamens free from the corolla; styles -i 97. 



9fi. .Stamens inserted on the base or tube of the corolla 9.S . 



97. Leaves more or less lobed or pinnately divided GcianiacecF. 'I'l 



97. Leaves trifoliate Oxalidacecr. I'l 



95. Silaments ujjited into a tube; anthers 1-celled Malvacecp. <S1 



9.S. Filaments wholly distinct; calyx free, persistent Ebenaceo'. 9.i 



99. Ovary adherent to the calyx-tube 100, . 



99. Ovary free from the calyx ilOo,. 

 100. Stamens united by their anthers; flowers in heads; corollas all 



tubular or the marginal ones ligulate Conipositce. US 



100. As above, but all the corollas ligulate _ Cichoiiacetr. 121 



100. .Stamens separate, free or nearly so^ from the corolla ; juice 



jL milky .^ /••,•• Ciimpanulacecc. US 



' -^ %Trsun^e^iTf^?r^uT?M?rfflr'e«?^^ in 



101. stamens 4-.J ; leaves opposite or whorled 102). 



102. Leaves opposite or whorled, with or without stipules RiibiacecE. HI 



102. Leaves opposite, without stipules Caprifoliaceee. lb'! 



103. Corolla irregular; stamens with anthers 4 of 2 lengths, or 2 104. 



10:!. Corolla regular lOS . 



104. Ovules solitary in the cells ; ovary deeply 4-lobed I.ahiatcv. 103 



104. Ovules 2 or more in each cell lO.'i . 



10.5. Ovary and pod l-celled ,106 . 



10.1. Ovary and pod 2-celled; placentas 2, in the axis 107. 



10'(. Ovary and pod 2-celled; the two placentas parietal. .. ./?/^§«o«?Vzc^^. 108 



10.5. Ovary and fruit more or less 4-5-celled PedaliacetE. 109 



106. Placenta free, central; stamens 2; plants aquatic Letitibiilariaceep. IDS 



lot). Placentas 2 or more, parietal : many seeded; stamens 4 Oi obaticliacea-. 108 



