ee 
grasses, Artemisia sp., Potentilla bifurca, Ferula Jaeschkeana 
and a thorny-leaved cushion-plant without blossoms, presu- 
mably an Acantholimon, Carex nitida var. conglobata, the 
annual Polygonum acerosum, Nepeta satureioides, Poa attenuata 
and persica, Fumaria Vaillantii, Adonis aestivalis var. miniata, 
Callipeltis cucullaria, Rhinanthus sp., Arenaria serpyllifolia, 
Asperugo procumbens, Bromus lectorum, Bromus crinitus. Nor 
did this plant community show any signs of xeromorphy. 
It contained indeed specimens like the labiatous Lagochilus, 
Artemisia, and Ephedra which are somewhat xerophytic, since 
Lagochilus is thorny and has leathery pinnatisect leaves, while 
Artemisia is silvery haired, and Ephedra leafless, yet the 
majority of the species are tiny, soft, slender annuals, easily 
destroyed by a short drought. It is possible too, that later 
in the year they would have been gone, we found them in 
June. Many of the annuals seem to have been imported, 
(Fumaria, Adonis, Asperugo, Bromus.) 
Climbing higher up the mounlain side the junipers are 
more and more bushlike and gradually disappear. Here at 
an altitude of 3,000—3,300 mètres above sea level, with 
patches of snow here and there, the vegetation comprises 
only a few species. I found the lovely borraginaceous Ma- 
crotomia euchromom with its blue blossoms unfolded and the 
dainty little Zsopyrum grandiflorum finding foothold in the 
cracks of the rocks. The cruciferous Parrya pinnatifida and 
P. fruticulosa are also rock plants, as are Smelowskia calycina 
and Draba fladnizensis. I found too Carex macrogyna, Lloydia 
serotina, Rhodiola rosea, Allium monadelphum, Linum perenne 
and Phlomis oreophila. All these were perennials. The 
season up here was too short for annuals. 
The mountain tops resemble fell fields more closely than 
anything else, for the vegetation was so sparse that there 
was more soil bare than covered with plants. 
B. FEDTSCHENKO (Pamir i Shugnan) finds 7 formations 
in Olgin Lug, but in his preliminary articles they are cha- 
racterized so briefly that it was difficult for me to recognize 
them. This author states too, that barley fields are to be 
found on Olgin Lug. In such case it is the highest altitude 
for the cultivation of cereals. 
