Origin of the Angiospermous Flora of Soittli Africa. 347 



Wales and West Australia, 1 {Orygia) through the desert regions of 

 Africa and the East Indies. 



II. 1. FicoidecB — Sesitvidecs. 



2 genera widely spread in tropical and sub-tropical countries, 1 in 

 the West Indies. 



II. 2. Ficoidem — Aizoece. 



3 genera (Plinthus, Galenia, and Acrosanthes) restricted to South 

 Africa, 1 (Aizoon) from South Africa through Tropical Africa to 

 South Europe and North-West India, 2 restricted to Australia. 



II. 3. Ficoidem — MesemhrianthemcB. 

 The majority of the species of Tetragonia are found in South Africa, 

 a few in Australia (1, T. expaiisa, with very wide distribution, even 

 found in South America). 



The genus Mesevihrianthemum is also almost entirely restricted to 

 South Africa, mostly found west of the Fish Eiver and south of the 

 Orange Eiver. A few species spread northwards as far as the 

 Mediterranean Eegion ; a few others, which have spread to Australia, 

 the islands of the Pacific, California, &c., are sea- shore plants. 



Phytolaccace^. 



I. BiviniecB. 



One chief centre of development Tropical America, spreading into 

 the adjoining sub-tropical and also into the temperate parts, 1 genus 

 in Australia, 1 {Adenogramma) in South Africa. 



II. Limese. 



2 genera (Polpoda and Limemn) in South Africa, the last extending 

 through Tropical Africa to the East Indies ; 1 genus in Mada- 

 gascar. 



III. Stegnospermece. 



1 genus in Central America and California, 1 (Psammotropha) in 

 South Africa. 



IV. PhytolaccecE. 



1 genus {Phytolacca) widely distributed in the Old and New World 

 (absent in Australia), 1 in Chile, 1 (Giesekia) in South Africa. 

 Y. Gyrostemonece. 



3 genera in Australia. 



VI. AgrestidecR. 

 1 genus in Mexico and Guatemala. 

 (1 unclassified genus in Yun-nan.) 



Although I think it advisable to separate the Karroo Province 

 from the Palseotropic Province of Marloth, I have no doubt that 

 many types which must be looked upon as palseotropic have 

 penetrated into it, as they have also done so largely into the 



