THE PLANT ECOLOGY OF 'I'HE COAST BELT OF NATAL. 433 



CoNVOLVDLACE.?']. — Ip 0111 03 a albivenia (o8), I. cardio- 

 sepala, I. crassipes, I. digitata, I. ficifolia (525), 

 I. geiniiiif lora, I. obscura, I. palniata, I. purpurea, 

 (93), I. tetraptera, I. wightii, ]\Ierremia angustifoHa, 

 Convolvulus calycinus, C. farinosus, C. natalensis, 

 C. sagittatus, Hewittea bicolor (281), Jacqueiuoutia 

 capitata (13), Evolvulus alsinoides, Falkia ohlonga 

 Dicliondra repeiis, Astroclilteiia grautii, all climbers, 

 coinnion or abundant near outer maryius, often formins* a 



7 ^ 



dense leafy covering over the trees or shrubs, by which they 

 are supported. Cuscuta cassytoides and C, natalensis 

 are parasites on marginal shrubs. 



SoLANACE-E. — Solauum auriculatum (352), shrub (a.); 

 S. acanthoideum, herbaceous (f.) ; S. duplusinuatum, 

 herb (o.) ; S. geniculatum, climbing shrub (f.) ; S. exas- 

 peratum, shrub (o.) ; S. giganteum, shrub or small tree 

 (f.); S. aculeastrum, shrub (o.) ; S. aculeatissimum, 

 small shrub (o.) ; Withania somnifera, small shrub (f.), 

 all marginal species. 



ScROPHULARiACE.E. — Diascia raceinulosa, herb (r.) ; 

 Nemesia cynanchif olia, herb (o.) ; Dermatobotrys 

 sa under si a3, epiphytic shrub (r.) ; Halle ria lucid a (545), 

 shrub or tree (a.); Anastrabe integerrima (480), shrub 

 (f.) ; Phyllopodium bracteatum, herb (f.) ; Harveya 

 c o c c i n e a , root parasitic herb ; H . s q u a m o s a , root parasite ; 

 H. speciosa, root parasite; marginal species, with the 

 exception of Halle ria, not very common. 



Gesnerace.e. — Streptocarpus, one or two species (f.) on 

 moist shady banks. 



BiGNONiACE.E. — Tocomaria capensis (272), rambling 

 shrub (If.). 



AcANTHACE.E. — Tliunborgia natalensis, shrublet (f.), in 

 shady places; T. venosa, straggler (o.) ; T. neglecta, 

 rambler (r.) ; T. pondoensis (340), climber (f.) ; T. dre- 

 geaiia, climber (a.) j T. alata (300), climber (a.); Ruellia 

 baurii, undershrub (f.) ; R. patula, undershrub (f.) ; E. 

 ovata, straggling herb (o.) ; Chtistacanthus glandulosus, 



