GO 



ridges. The most noticeable feature is the very small amount 

 of chlorenchyma. Like all the other species of Aristida this 

 is a very poor grazing grass, full of hard sclerenchyma and 

 with little storage food. 



AruiKlinaria tesselata (the Berg Bamboo). A mountain 

 bamboo growing in clumps usually along watercourses, and 

 at the edge of Bush on the slopes of the Drakensberg around 

 to -the Stormberg and Witteberg at altitudes of from 4,000- 

 8,000 feet. It does not enter into the grassland succession, 

 but in places is important in the Bush succession. 



Arundinella ecklonii. A tall Vlei species, also marginal 

 to forest. It is widely distributed from the Cape to Natal 

 and the Transvaal. A. rigida from the Kamiesberg, Namaqua- 

 land is stated by Stapf to be a hairy state of A. ecldonii. 



Arundo donax. Spanish Reed; introduced. Fairly com- 

 mon in places along streams, but usually near towns or on 

 farms. 



Fig. 6. — Transverse Section of a portion of a leaf of Aristida bipartita 

 (x about 8U). 



Atropis. A temperate genus. The species A. angusta is 

 a rare Cape species, collected by Ecklon "in saline places by 

 the Zwartkops river," and the other species A. borreri is a 

 native of Western Europe, which occurs in sandy places and 

 dunes at the Cape and in Namaqualand. Dr. Stapf is inclined 

 to think that it is truly native of South Africa, and if so, 

 it is interesting as representing one of the few boreal elements 

 in our flora. 



Avena. Oats. Introduced weeds of Mediterranean 

 origin. Common enough all over, but mostly at the Cape. 

 Buderal. 



Avonaslnmi is another temperate genus, which is repre- 

 sented at the Cape by .4 . longuin and its variety grande (most 

 abundant), and also by ^4 . quinquesetum and ,4. dodii. A. 

 dregeanum is from Little Namaqualand and the others are 

 eastern mountain types. A. antarticum extends from the 



