these belong Eurolia ceratoides, stellate-hairy, Silene caucasica 
and Sympegma Regelit. 
There are, too, 7 grasses and cyperaceae, of which the 
majority have convolute leaves. Among these Stipa orientalis 
is the most important; 
5 species with small, narrow, smooth leaves, to which 
belong the annuals Veronica biloba and Nepeta daénensis; 
6 species with undivided, comparatively large leaves, in 
any case more than 2 cm long and not linear. The leaves 
are hairy, (Solenanthus, Scorzonera) with the exception of the 
glabrous Serratula procumbens. 
There are 3 evergreen species with very small (0,2 cm) 
or acicular leaves, the two Acantholimon-species, and Arenaria- 
Meyeri; 
2 Polygonum-species with small leaves, for the most 
part hidden in the large ochreae; 
1 hairy succulent, Halogeton (a chance guest!), and 
1 leafless species, Ephedra. 
We see from the above, first that the leaves are as a 
rule small; in the pinnate species the leaflets are small, their 
measurements are given above. The majority of the leaves 
are hairy, as a rule closely. Of glabrous-leafed species, not 
annuals, or having acicular leaves, there are only Trigonella 
Emodi which has movable leaflets, Serratula procumbens, whose 
leaves are sulcate, the Polygonum-species, whose leaves are 
concealed in ochreae, the augusti-foliate Linaria sp. and the 
succulent Zygophyllum Fabago. 
In order to obtain an idea of the internal structure of 
the leaves of the plants of the Pamirs, I have dissected 
several leaves which were brought home in alcohol. They 
belonged to the following species: Astragalus Alitschuri, Ma- 
crotomia euchromon, Silene caucasica, Acantholimon alatavicum, 
Oxytropis Poncinsü, O. bella, O. tibetica, Trigonella Emodi, 
Scorzonera mollis, Serratula procumbens, Sisymbrium Korolkowi, 
Solenanthus stylosus, Eurotia ceratoides, Arenaria Meyeri, and 
Acantholimon diapensioides. Other species should have been 
examined but the necessary material was lacking. 
The majority of the species examined, show in the main 
