Be 2 
with these are a very few, especially Dracocephalum and Ne- 
peta which, on account of their xerophytic character (small, 
hairy leaves) seem strangers to the plant community in which 
they are found. | 
Among mesophytic traits we may mention that the grasses, 
except Festuca ovina and Poa attenuata, are broad-leafed, as 
are Liliaceae, that there are many glabrous species, (Gypso- 
phila, Melandrium, Senecio, Gentiana, Swertia, Geranium, Pri- 
mula, Ranunculus, Parnassia, Saxifraga, Pedicularis, Lagotis, 
Hymenolaena; Trachydium) and that these species have also 
brittle leaves, — that is to say the mechanical tissue is 
slightly developed. More or less hairy species are also found: 
Myosotis, Paracargum, Artemisia, Chrysanthemum, Leontodon, 
Draba, Dracocephalum, Nepeta, Papaver, Astragalus, and Po- 
tentilla belong here, but these can not be called xerophytic. 
Papaver radicatum and Myosotis silvatica are mesophytically 
adapted; the same is perhaps true of the others. Cyperaceae 
and the bulbiferous Liliaceae, of which there are respectively 
3 and 2 species, are not usually found in very dry localities. 
This is likewise the case with species with horizontal and 
rootstriking shoots of which Leontodon, Draba fladnizensis and 
turcestanica, as well as Saxifraga flagellaris, were found on 
slopes with a northern exposure. Only the few species men- 
tioned above, which are also found on slopes with a southern 
exposure, and perhaps to some extent Arenaria Meyeri can 
be called xerophytes. 
On the whole, one may be justified in calling the vege- 
tation on the slopes with a northern exposure, mesophytic, 
and, as a comparison with what is to follow will show, this 
vegetation is most closely related to the vegetation of the 
river-banks. 
