ARTIFICIAL KEY. 



Tree. Stamens opposite the petals Homalium 

 with alternating glands . . (p. 162) 



Tree with very large obovate leaves. Semecarpus 

 St. 5-6 not opposite the petals . (p. 257) 



B. Stamens united into a tube. Trees 



with pinnate leaves . . • Amoora (p. 254) 



Monocotyledons. 



I, Perianth! 0, or brown, coriaceous or membranous. 

 Inflorescence often enclosed in spathes. 



Bamboos, and a few grasses 



Graraineae 



(p. 555) 



or a 



with 



AraceaB (p. 549) 



Palmse (p. 545) 



Stout climbers with aerial .roots, 

 stout prickly marsh herb, 

 flowers crowded on a spadix 



Tall trees with slender stems and large 

 leaves, or if shrubs or shrubby 

 climbers then leaves pinnate or 

 pinnatifid . 



II. Perianth small regular of two 3-merous whorls, peta- 



loid or sometimes sepaloid. Inflorescence never 

 inclosed in spathes. Climbers, or young sub-erect. 



Ovary superior. Leaves (cladodes) Asparagus 



acicular .... (p. 520) 



Pis. 1 -sexual. Ovary superior. 



Leaves broad. Fls. in umbels . . Smilax / p. 518) 



Pis. 1 -sexual. Ovary inferior. Leaves Dioscoreacea? 

 broad. Pis. in spikes ... (p. 528) 



III. Perianth moderate-sized, usually showy or coloured. 

 L Ovary superior. 



Pis. small blue cymose, often from im- Commelinacese 

 bricating bracts . . . . (p. 534) 



Fls. solitary or racemose. Usually 



white or red . . . . Liliaceee (p^517) 



110 



