150 Key to the System of 



NEPHELIUBX. 



730. Leaflets large, from almost ovate to lanceolar. 



An evergreen tree, finally tall ; leaflets very firm, entire or 

 distantly serrulated, mostly pointed, paler beneath ; 

 flowers in panicles ; fruit glabrous, its divisions breaking 

 transversely ; seeds black, shining, their arillar appendage 

 bright-red. N. leiocarpum. 



NXTRARIA. 



731. Flowers in cymously paniculated spikes. 



A spinescent shrub, finally tall ; leaves from linear- to 

 lanceolar- elliptical ; spikes in the often rather ample 

 inflorescence short ; flowers small ; number of stamens 

 threefold that of the petals ; fruit edible, dark-purplish 

 or yellow outside ; the hard inner part (putamen) fissured 

 at the summit. Figure 17. N. Schoberi. 



ZYGOFHYXiXiUBX. 



732. Sepals and petals five... ...... ... 733 



Sepals and petals four ... ... ... 734 



733. Fruits almost globular, but five-angular. 



Annual herb, never tall ; leaflets cuneate-elliptical, notched 

 at the summit ; leafstalks dilated ; stamens ten ; filaments 

 appendiculated ; fruit small, often assuming a violet hue, 

 when fresh roundish, when dry splitting between the 

 dissepiments, few-seeded. Z. lodocarpum. 



Fruits almost semi-ellipsoid, but five-angular, truncate 

 at the vertex. 



A somewhat shrubby plant, quite glabrous ; leaflets broadly 

 obovate, oblique ; stamens ten ; filaments appendiculated ; 

 fruit dilated at the summit into five short appendages, 

 splitting between the dissepiments, few-seeded ; angles of 

 the fruit thick and narrow. Z. apiculatum. 



734. Angles of the fruit broadly membranous. 



A lax shrub ; leaflets from obliquely ovate-lanceolar to 

 linear ; petals often orange -colored ; stamens eight ; fila- 

 ments without appendages ; fruits large, splitting at the 

 dissepiment, few-seeded. Z. fruticulosum. 



Angles of the fruit thick and narrow ... ... 735 



