OF ALPINE PLANTS IN THE CAUCASUS. 275 
PorENTILLA ALPESTRIS, Hall. I quote from Ruprecht in 
Boissier, Fl. Orient. ii. 720, from Daghestan at 11,000 ft. 
POTENTILLA GELIDA, C. A. Mey. Dwarf specimens grew on 
Sawalan at 9500 ft., on 14/26 June, 1885. Strong plants were 
gathered on Schalbus, 29 June/11 July, as much as 12 cm. high ; 
others came from Elbruz, Kasbek, and Kerigo, at similar 
altitudes. Ruprecht, Fl. Cauc. 724, gives the greatest height in 
Daghestan as 11,600 ft. 
PorENTILLA NIVEA, Linn., is cited by Steven, C. A. Meyer, and 
Ruprecht from Daghestan at up to 10,000 ft. 
SIBBALDIA PROCUMBENS, Linn. (= Potentilla Sibbaldi, Hall. f.) 
Very common at elevations of 8000-10,000 ft., those which were 
gathered at Küp-göl at above 11,000 ft. were strong specimens, 
10 em. [4 in.] high, full of flower and forming patches ; by 9/21 
August past flowering. 
ALCHEMILLA VULGARIS, Zinn., and A. sERICEA, Willd. I have 
both of these from Küp-göl at more than 11,000 ft., the former 
was 15 cm. [6 in.] high, and very hairy. Ruprecht gives the 
maximum for both as 9600 ft. in the Caucasus. The former 
descends to 2000 ft. 
*SEDUM TENELLUM, Bieb. I have this fromall the high alpine 
localities which I have visited in the Caucasus—from Alagös, 
both the Ararats, Kapudschich, Borbalo, Elbruz, Kasbek, 
&e., ranging from 9000-12,000 ft. At more than 10,000 ft. I 
found the little plants 9-10 cm. [33-4 in.] in height; also at 
Küp-göl it was just as strong. The highest station was on the 
Great Ararat at 13,500 ft.; those there gathered are almost 
destitute of stem, with solitary flowers on stalks 15 mm. [å in.] 
high, the leaves almost imbrieate and a little broader than is 
usual with plants which grow at lower elevations. Ruprecht, 
Fl. Caue. p. 782, gives the maximum height for the eastern 
Caucasus at 10,500 ft., and the minimum at 6000 ft. 
SEDUM NANUM, Boiss. From Bingöl-dagh at 9000—10,000 ft. ; 
the tiniest of all the species, covering the dried up snow-water 
pools in the crater of the extinct volcano ; it was gathered by 
Haussknecht at 12,000 ft. in Persia. 
SEDUM GLOBIFERUM, Linn. On Bingöl-dagh at 10,000 ft. 
