68 PTlOCEEDINCiS OF THE LTNKEAN SOCIETY. 



Tlw (Mulcmic goiiera of Africa are of two kinds : (a) those wliicli 

 are obviously " reliets " as Taiisley terms tlieiii, e. i,'., h'nceji/tidartos, 

 iStaiKjeria, Cnelitm, WelivitKcJiia, Adansonia, >Stercidi(t, etc., some 

 of which are extremely local in their distribution, while others 

 are Avide spread : and (6) those which are in a state of Jlnx, still 

 developing; new species and varieties, e. g., reursonia, Pleiua/'ora, 

 Lotononis, etc. 



Fifteen species (less than ') per cent.) are common to the 

 Transvaal and India, and five species are found in Madagascar ; 

 the Malagasy Element may be found to be larger when tlie scat- 

 tered literature has been collected into accessible form, and the 

 scattered herbarium material has been more critically studied. 



In connection with the view that, in some families at least, tiie 

 arborescent forms arc the older types, it is instructive to liiid that, 

 with one exception, possibly introduced, th(^ arborescent and 

 shrubbv species of P:ipilionace;e (only about twenty in all) belong 

 to the "Tropical African Element, and that about half of them 

 belong to genera \\ ith few species, i'our of the genera being Uiono- 

 typic. The Warm Temperate Plateau Element is made up, to an 

 extraordinary degree, of sju'cies which have developed the suffru- 

 tescent habit, there being very few herbs and scarcely any annuals 

 among them. 



