Bien Sk 
attenuata var. versicolor, Tragopogon parvifolium, Calamagrostis 
anthoxanthoides, Bromus erectus f. 
As on the northern slopes near Jashil Kul, described 
earlier, this is a close or nearly close vegetation composed 
almost entirely of hemicryptophytes. The remaining plants 
are a few therophytes, chamaephytes and a geophyte (Gagea). 
As a main result of the above descriptions we may 
conclude that mountain slopes of Pamir with a northern ex- 
posure have a vegetation more os less dense, often close, 
formed of mesophytically adapted species, while the slopes 
with a southern exposure have an open, poor vegetation of 
xerophytes. To obtain a synopsis of the ecology of these 
vegetations, lists are given of the species on slopes with a 
northern and southern exposure and information of their 
biological types (growth-forms), — just as was done in the 
case of the horizontal flats. 
List of plants growing on slopes with northern or 
northeastern exposure (Poa attenuata-Formation). 
Cyperaceae. Oryzopsis purpurascens H 
Carex macrogyna H Poa attenuata H 
ae sie TH — persica H 
Kobresia schoenoides H = 
Liliaceae. 
Gramineae. Gagea stipitata G 
Agropyrum longearistatum H  Lloydia serotina G 
Bromus erectus H 
—  Paulsenii H Borraginaceae. 
Calamagrostis anthoxanthoi- Myosotis silvatica H 
des H Paracaryum himalayense H 
Elymus lanatus H 
—  sibiricus H Caryophyllaceae. 
Festuca ovina H Årenaria Meyeri Ch 
