ARTIFICIAL KEY. 



Anther cells globose, terminal or adnate 

 to a broad connective, rarely (Gelo- 

 nium) anthers oblong and dorsifixed. 

 L. alternate or in (Trewia) opposite. Euphorbiacesa 

 Sepals 3-6 imbricate or valvate . . (p. 209) 



Anthers versatile. L. alternate. Sep. 



4-5 imbricate ...» Bixaceae (p. 157) 



2. Calyx tubular green or coloured. 



Anthers sessile on the top of a column. 



L. alt. palmate or pal mi-nerved . Sterculia (p. 204) 



B. Fls. 2-sexnal Fls. with large whit9 



sepals. L. opposite, compound . . Clematis 'p. 140) 



II. Petals present, but ! flowers small 

 green or yellowish, in racemes or spikes. 

 L. simple. Chrozophora, Croton, (Euphorbiaceae) 

 Codiamm (p. 209) 



II. Perianth pale or coloured of two 

 or more 3-merous whorls, the inner 

 one or more of which may be dis- 

 similar and petaloid. Carpels free, 

 except in Anona (Custard-apple.) . 

 Fls. large, solitary. Carpels on an 

 elongate axis ..... Michelia (p. 141) 



Fls. small or moderate-sized. Carpels Anonaceae 



in a head or umbel .... (p. 142) 



IV. Perianth distinctly separated into 

 calyx and corolla. 



A. Corolla polypetalous, or petals only 

 united at the base (vide p. 122) 



1. Stamens hypogynous, or on a hypo- 

 gynous disc (vide p. 121). 



a. Filaments completely united or only 

 free at the apex. 



119 



