sluiib-sleppos all' nearly exiliisivoly conijioscd of C(tra(/(ina liiiru/ei. Cnragnna spinosa. 

 and Polrnlilld friiticosd. foiniinq low l)uslu'.s. about 1 m. lii^li, at latlier regular inter- 

 vals, and so open llial llie\ do not i'onn any continuous lliickel. with a sj)arinf; vcf^e- 

 talion between llieni. frequently of Slipa pm/uihi ixii: .loaiini.s. Slipa capillata, Slipa 

 sihiricd. and remains of other grass vegetation. 



Bui the flora of (he steppe itself is very poor and monotonous. Al liiis time, in the 

 last days of August and (he beginning of Septendjer, the greater i)arl ol (lie plant WW had 

 been destroyed, j)artly iiy Ihe long continued sunnner drought, jjarlly by the nights of 



Fig- 70. Tlie Yeni.sei valley below Keinchik-boiii. The dry roek .steppe giadiuilly disappears, 

 and the primeval forest begins. On the banks the first larelies are seen. 



frost. Over large stretches there was an almost complete absence of vegetation. Besi- 

 des the plants already mentioned above, I have, here and there, on the steppe along 

 the Ulu-kem, collected still determinable remains of various plants, which, for the sake of 

 completeness, I will give in the following, viz: 



Linum perenne. Astragalus hijpogloltis var. dasij glottis. Astragalus meliloloides. 

 Cotyledon spinosa. Oxijtropis aciphglla. Artemisia dracunculus. Convolvulus Ammani, 

 Eurotia ceraloides. (iiildenstddtia wonopliglla. Ephedra vulgaris. Atrapha.ris frutescens, 

 Caragana pggmaea. Allium senescens, Carex supina, Koeleria gracilis. Triticum crislatum, 

 Artemisia latifolia. Artemisia glauca. Medicago falcata. (igpsnphila desertorum, 

 Echinospermum Lappula. Panzeria lanata. Iris ensuta, Allium Slellerianum. Selaginella 



99 



