1 62 Plants and their Ways in South Africa 



Restiace^. 

 commelynace^e. 



LlLIACE^. 



Amaryllide^. 

 Iride/E. 



Hy^MODORACE.^. 

 MUSACE^. 



Orchidace.^. 



B. Ovary superior. 



C. Ovules orthotropous; endosperm mealy. 

 Plants grass-like, dioecious ; perianth 

 chafty ...... 



Flowers irregular ; sepals green ; 

 stamens 6, difterently formed . 

 C C . Ovules analropous ; endosperm fleshy. 

 Flowers regular ; sepals coloured ; 

 stamens 6, similar 

 BB. Ovary inferior. 



Stamens 6 ..... , 



, , 3 or 6 ; ovary inferior or superior 

 ,, 5 ; seeds with arils . 

 Stamen l, borne on the pistil (gynan- 

 drous) ...... 



Class II. Dicotyledons — Embryo with two 

 cotyledons. Leaves mostly with netted 

 veins ; flowers usually 5- or 4-parted. 

 Series I. APETAL/^andCHORlPETAL.^. — 

 Perianth either (l) absent ; (2) simple, 

 in one whorl, petal-like or sepal-like ; 

 (3) in two whorls, the inner polypeta- 

 lous ; (4) in two whorls, the inner 

 gamopetalous (in forms whose nearest 

 relatives are polypetalous ; (5) in one 

 whorl, because of the disappearance of 

 the inner whorl. 

 A. Petals none (except in Caryophyllacese). 

 B. Calyx none. 



Flowers dioecious, in catkins ; fruit 



a many-seeded capsule . . . Salicine.(1£. 

 Flowers dioecious or monoecious ; 

 fruit I -seeded, dry or covered with 

 fleshy scales .... Myricace^. 



BB. Calyx present in staminate flowers. 



Flowers monoecious ; fruit a nut . FAGACE/fi. 

 BBB. Calyx present. Flowers perfect. 

 C. vSeeds without endosperm. 



Sepals 4, petal-like ; anthers op- 

 posite and attached to the sepals Proteace.^. 

 CC. Seeds with endosperm. 



D. Em])ryo straight. Ovary inferior. 



Tree parasites with opposite 



leaves or scales ; fruit a sticky 



berry .... 



LORANTHACE.Ii. 



