412 J. W. BEWS. 



are Amaraiitus spinosus (310), A. grfecizans, Cyatliula 

 cylindrica, C. globulif era, Celosia trigyna, Achy- 

 rantlies aspera, A. alba, A. avicularis, A. robusta, 

 Hermbstasdtia caffra, yEi'va lanata. 



Among the PolygonaceaB there are Emex australis 

 (860) (Devil's Thorn), E. spinosa, Rumex obtusifolius 

 and Polygonum aviculare, and in the lUecebracese, two 

 species, Pollichia campestris and Corrigiola littoralis. 



The Euphorbiacea3 include cei'tain small annual Eu- 

 phorbias (E. hirta, E. pilulifera with its variety 

 procumbens, E. sanguinea with its variety intermedia, 

 E. hypericifolia, E. prostrata, E. peplus), all of which 

 are widely distributed over the tropics, as well as Acalypha 

 eckloni and Ricinus communis. 



The Compositte are perhaps not quite so abundant on 

 the coast belt as ia the midlands, but more or less the same 

 species are represented with certain additions: e.g. Eclipta 

 alba, Tridax procumbens, Spilanthes acmella, 

 Siegesbeckia orientalis, all coast species and Bidens 

 pilosa, Erigeron canadense, Xanthium occidentale, 

 X. spinosum, X. italicum, Galinsoga parviflora, 

 Cry ptostemma calendulaceum, Schkuria bonariensis, 

 Acanthospermurn brazilum, Ageratum conyzoides, 

 Grnaphalium purpureum, Sonchus oleraceus, Heli- 

 chrysum f oetidum more widely distributed. 



The vSolanacete include a number of very common weeds : 

 Datura stramonium (Stinkblaar), Nicandra phy- 

 saloides, Physalis peruviana (Cape Gooseberry) and 

 Solan um nigrum; while among the Malvacete are 

 Malva parviflora, Abutilon indicum, A. sonneri- 

 tianum, Sida rhombifolia, S. spinosa, S. triloba, 

 Hibiscus physaloides (379), H. surattensis (358), 

 H . trionum. 



Among the large family of the Leguminosa3 there are 

 only one or two ruderals, e.g. Lotouonis dichiloides 

 (509) and Tephrosia grandiflora. 



Belonging to other dicotyledonous families there are : 



