44 Transactions of the Royal Society of South Africa. 
Vitaceae (Ampelidaceae) . 
Rhoicisms Planch, (formerly placed under Cissus L. or Vitig Tourn.) is 
found in the southern coast districts of South Africa, one on the Cape 
Peninsula, chiefly in forests. Cissus L. is widely spread in South Africa, 
but absent from South- West Cape Colony. 
MALVALES. 
Tiliaceae. 
Greivia L. is fairly generally distributed in South Africa (absent, how- 
ever, from the greater part of the Karroo), though only poor in species as 
compared with tropical Africa. Sparmannia L. has a well-known species 
at Stormsriver, G-eorge, Knysna, and in the Uit. div., and then occurs again 
from the Transkei eastwards, Corchorus L. and Triumfetta L. are essentially 
tropical genera, but extend into the parts of South Africa adjoining the 
Tropics, Triumfetta L. reaching the Kei mouth. 
Malvaceae. 
Malva L. is only represented by a common introduced weed. Malvastrum* 
A. Gray is found in South Africa in the South-west and the Karroo and 
extends to Natal. Sida L., Ahutilon Gaertn. and Favonia L. radiate from 
the Tropics. I have no record of these genera west of the Uit. and P. E. 
divs. Hibiscus L. is generally distributed over South Africa. Sphaeralcea 
St. Hill, is confined to South Africa. It is found in the South-west, and 
then again in more eastern parts (Nerval's Pont, Herschel district, Tembu- 
land). Althaea L. is only known from near the mouth of the Orange Eiver. 
The remaining five genera skirt the Tropics, Cienfugosia Cav, reaching 
Griqualand East and Thespesia Corr. Natal. 
Sterculiaceae. 
Sterculia L. is represented by one species near Uitenhage, famous on 
account of its complete isolation ; the nearest spot where another species 
is found is the Lydenburg district, Transvaal. Hermannia L. (including 
Mahernia L.) is generally distributed in South Africa. Melhania Forsk. 
and Domheya Forsk. have their western limit in the Uit. dis. Cola Schott. 
is found in Pondoland and Natal and Waltheria L. in Natal and the 
Transvaal. 
PARIETALES. 
Ochnaceae. 
Ochna L. is found in the forest regions from the Knysna to Natal and 
the Transvaal. No South African locality for Sauvagesia L., said to occur 
in temperate South Africa, is known to me. The remarkable endemic genus 
Roridula L. is restricted to a circumscribed area in South-west Cape Colony 
(mainly in the Caledon div.). 
