INTRODUCTION. 



lxxvii 



Ovarium 1-celled, with a central placenta 

 Ovarium 2-celled, or 1 celled, with two opposite pa- 

 rietal placentae. 

 Albumen none. 

 Seeds attached to rigid hooked processes 

 Seeds adhering - immediately to the placenta;. 

 Seeds winged ... 



Seeds apterous. 

 Fruit siliquose, 1-celled, or spuriously 



2-celled 

 Fruit woody, short, spuriously 4- or 6- 

 celled - - ' - 



Albumen present. 



Radicle pointing' to the hilum. 

 Ovarium 2-cclled 

 Ovarium with more cells than 2 

 Radicle pointing to the extremity of the seed 

 which is most remote from the hilum. 

 Embryo in the axis. Ovarium 2-celled 

 Embryo minute in the apex. Ovarium j 

 1-celled i 



208. Lentibularije. 



214. AcANTHACEJE. 

 217. BlGNONIACEJE. 



216. Cyhtandace-e. 



215. Pedalineje. 



211. ScROPHULARINEJE. 



170. Ericeje (bis). 



212. Rhinanthace.k. 

 210. Orobanche.k. 



Tribe II.— GYMNOSPERMLE. 

 Seeds destitute of a pericarpium. 



Resinous. Leaves simple, Trunk branched 

 Mucilaginous. Leaves pinnated, Trunk unbranched 



228. Conifer*. 

 227. Cvcade*. 



Sub-class II. ENDOGENiE, or MONOCOTYLEDONOUS 



PLANTS. 



Leaves with parallel veins. Stem with no distinction of wood, bark, and pith. 

 Floxvers with a ternary division. Cotyledon 1 ; or, if 2, alternate. 



Tribe I— PETALOIDEiE. 



Calyx and corolla both developed, in 3 or 6 divisions ; or, if absent, then the 

 stamens and pistils naked. 



*Tripetaloide^. 



Calyx herbaceous. 



Corolla petaloid. 



Ovarium superior. 



Placentae covering the whole lining of the carpella 

 Placentae occupying the inner suture of the carpella. 

 Carpella several, distinct - ■ 



Carpella concrete. 



Capsule 3-celled, 3-valved - - - 



Capsule 1-celled, with parietal placenta. (Flowers 

 capitate) - 



Ovarium inferior. 



Embryo exalbuminous. (Water plants) 

 Embryo albuminous. 

 Stamens 6 - 

 Stamen 1. 



Anther 2-celled, terminal - 



Anther 1-celled, lateral - 



230. Butomeje. 

 229. Alismace*. 



232. Commeline.k. 



233. XYBIDEiE. 



231. Hydrocharide*. 



234. Bromeliace*. 



211. ScitaminejB. 

 242. Marantace*. 



