THE PLANT ECOLOGY OF THE COAST BELT OF NATAL. 427 



(f.), V. orientalis (o.), V. quadrangularis (o.), V. rhom- 

 boidea (f.), V. thunbergii (o.), V. tetragona (o.), V. 

 lanigera (o.), V. semiglabra (o.). All climbers ("monkej- 

 ropes"). These wild vines are a very common feature of all 

 coast scrub and are particularly abundant in the marginal 

 zone. 



Sapindace.*:. — Cardiospermum halicacabum, herb (f.) 

 around margin; Schmidelia decipiens^ shrub (f.) ; S. 

 erosa, shrub (a.) ; S. africana (572), shrub (f.) ; S. mono- 

 phylla, tree (o.) ; S. rehmanniana, shrub (o.) ; Hippo- 

 bromus alatus, shrub (f.) ; Sapindus oblongifolius (89), 

 small tree or shrub (o.) ; Dodonaea viscosa, shrub (1.) ; 

 Ptjeroxylon utile, tree (1.); Bersama lucens (88), small 

 tree (f.). Another important family of trees and shrubs in 

 coast scrub. 



ANACARDiACEiE. — Protorhus longifolia (69 and 383), large 

 tree dominant as the scrub develops into true forest; Rhus 

 lajvigata, also a large tree (f.) ; R. lucida, R. dentata, 

 R. natalensis, R. obovata, R. parvifolia, R. pyroides, 

 R. tridentata, R. villosa, small trees or shrubs very 

 common around the margin; Harpephyllum caff rum, tree 

 (f.) ; Sclerocarya caffra (307), tree (l.d.) ; Smodingium 

 argutum, shrub or small tree (La.). A still more important 

 family, including dominant or locally dominant species. 



CoNNARACE.i;. — Cnestis natalensis, woody liaue (f.). 



Leguminos^:. — This large family includes a number of im- 

 portant trees : Albizzia fastigiata (27), (a. orl.d.); Milletia 

 caffra (32), (La.); Schotia brachypetala (390), (o.) ; 

 Erythrina caffra (542), (a.); Baphia racemosa (19), (f.); 

 Calpurnia lasiogyne (4), tree or shrub (o.). The woody 

 lianes, Dalbergia obovata (a.) and D. armata (79), (a.) 

 climb over the trees throughout the scrub. 



The other species are more marginal and include a large 

 number of herbs, shrubs and stragglers or climbers, e.g. 

 Lotononis cytisoides, Aspalathus spinosa, Lebeckia 

 mucronata, Crotalaria capensis (92), Argyrolobium 

 andrewsianum, A. ascendens, A. reflexum, A. san- 



