mer ER: 
As long as the various parts of the plain are horizontal 
the vegetation found is, in the main, the same. That Eurotia 
and Acantholimon diapensioides form associations in some 
places, Artemisia and Stipa in others, is presumably due to 
chance causes; in any case I have no theory as to how it 
comes about. 
The plants growing on the plain do not represent many 
different growth-forms. Of the total 31 species, 17 are 
Fig. 23. Polygonum molliaeforme Bois. (ab. */1)) 
hemicryptophytes, 10 chamaephytes and 4 therophytes. — 
Let us first consider the chamaephytes. They belong to 
two groups, cushion-plants and suffrutices. To the former 
belong only the two Acantholimon-species, of which one, 
A. diapensioides is a true cushion-plant, according to Haurı 
and SCHRÔTER’S definiton of the term, that is to say, its 
shoots are so closely packed together, that light and air can- 
not penetrate between; the leaves are very small and stubby. 
A. alatavicum on the other hand is a “spherical bush”, 
“Kugelkissen”, far more open in its construction and with 
long (spinescent) leaves. 
There are 6 suffrutices: Chrysanthemum pamiricum, Po- 
