GO 



ridges. The most noticeable feature is the very small amount 

 of chlorenchj^ma. Like all the other species of Aristida this 

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

 with little storage food. 



Arundinaria tessclala (the Berg Bamboo). A mountain 

 bamboo growing in clumps usually along watercourses, and 

 at the edge of Bush on the slopes of the Drakeusberg 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. 



Aruntlinella ecUlonii. A full Vlei species, also marginal 

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

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

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



Ai'imdo donax. Spanish Eeed ; introduced. Fairly com- 

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

 farms. 



Fig. 6. — Ti-anaverse Section of a portion of a leaf of Aristida hipartita 

 (X abovit 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. horreri is a 

 native of Western Europe, which occurs in sandy places and 

 dunes at the Cape and in Naraaqualand. Dr. Stajjf 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. 



Avcna. Oats. Introduced weeds of Mediterranean 

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

 Euderal. 



A\pnastrum is another temperate genus, which is repre- 

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

 abundant), and also by A. quinqiiexeitnn and A. dodii. A. 

 diegenninn is from Little Namaqualand and the others are 

 eastern mountain types. ^4. antarticuni extends from the 



