220 



MANUAL OF BOTANY 



Veins of leaves reticulated. 



Elowers unisexual ..... Dioscoreace^ . 



B, Ovary superior [Superm). Leaves parallel- 

 veined. 



tt. Outer whorl of the perianth herbaceous or 

 glumaceous. 



Carpels more or less distinct. 



Seeds attached over the whole inner walls of 



the fruit . 



Seeds attached to axile or basal placentas. 

 Flowers conspicuous. Embryo curved, 

 without a slit . ... 



Flowers inconspicuous. Embryo straight, 

 with a lateral slit .... 



Carpels combined. 

 Inner whorl of the perianth different from 

 the outer. 

 Placentas axile. Anthers 2-celled. Cap 



sule 2 — 3-celled .... 

 Placentas parietal. • 

 Anthers 2-celled. -Capsule 1-celled 

 Anthers 1-celled. Capsule 1-celled 

 The outer and inner whorls of the perianth 

 alike. 

 Flowers on a spadix. Embryo with a la^ 



teral slit 



Flowers not on a spadix. Embryo with- 

 out a slit . , , 



ButomacecB. 



AUs'inacecp. 

 JuncaginacecB. 



Comtnelynace^. 



XyridacecB. 

 Mayacece. 



AroidacecB. 

 JuncacecB. 



'. Outer whorl of the^ perianth peialoid, or the 

 whole petaloid when only one whorl is 

 present. 



Carpels more or less distinct. 



Seeds solitary. Flowers on a spadix , . Palmacecs. 

 Seeds numerous. Flowers jiot on a spadix. 

 Anthers extrorse . . . . GolehicacecE. 



Anthers introrse. 



Perianth of 6 parts. Seeds without al- 

 bumen ButomacecE. 



Perianth of 2 parts. Seeds with albumen Philydrace<B. 

 Carpels combined. 



Flowers on a spadix . . . Palmace^. 



Flowers not on a spadix. 

 Perianth rolled inwards after flower- 

 ing. Aquatics ... . Fontederiace^. 

 Perianth not rolled inwards ^.fter .flower- 

 ing, conspicuous . . . . Liliacece. 



