C r a s s u 1 a c e a e DC. 



Bulliarda aquatica (L.) DC. in Bull. Soc. Philom. no. 49, p. 1 et Piodrom. Ill (1828) 

 p. 382; Ledeb. Fl. Ross. II, p. 172. 



On an islet in the river Abakan, near the mouth, on moist river-banks etc. The 

 species seemed to be very rare in Siberia, or has at any rate been overlooked. 



Distribution: Eui'ope, southern Siberia (Minusinsk), North America. 



Sedum quadrifidum Pallas, Reise Russ. Reich. Ill, p. 25, 33 et 316, app. p. 730, 

 no. 90; Ledeb. Fl. Ah. II, p. 196; Turczan. Cat Baical. no. 476; Ledeb. Fl. Ross. II, p. 177; 

 Turczan. Fl. Baical.-Dahur. (1844) p. 247, no. 465; Maximowicz, Crassulac. Asiae Orient, p. 

 729 (Mel. Biol. B. XI); Kpwji. $jr. Ajit. II (1903) p. 455, 



In the Altaian, above the limit of tree vegetation, at an altitude of about 1900 m. 

 above sea-level, among sand and gravel. Flowering, and partly past flowering at the 

 end of July. The specimens taken are from 6 to 7 cm. high; the stamens somewhat shor- 

 ter, more rarely of the same length as the petals. 



Distribution: Northern Russia, the Thian-Shan, Turkestan, Tibet, the Himalayas, 

 the Altai, the Sayansk district, northern Mongolia. 



Sedum Rhodiola (L.) DC. Prodrom. Ill (1828) p. 401; Ledeb. Fl. Alt. II, p. 194 in 

 nota; Turczan. Cat. Baical. no. 470; Ledeb. Fl. Ross. II, p. 179; Maxim. Crassulac. Asiae 

 Orient, p. 734; KptiJi. Oji. A.iit. II (1903) p. 456. Sedum elongatum Ledeb. Fl. Alt. II, p. 

 193; Turczan. Fl. Baical.-Dahur. (1844) p. 243, no. 461. 



In the Altaian, at altitudes of about 2000 m. above sea-level, on moist and shady 

 slopes with a northern aspect, in places grown with mosses and lichens, accompanying 

 Cardamine bellidi folia, Papaver midicaule var. xanthopetalum, Valeriana capitata, Ranun- 

 culus fridigus, etc. In full flower at the end of June. 



The leaves in the specimens collected, especiallj' the upper ones, are comparatively 

 narrow, nearly lanceolate, or more equally narrow throughout their length, to 30 mm. 

 long, and 6 mm. broad, the summit rather sharply pointed, the margin in the upper half 

 rather deeply indented. Thus, it agree rather perfectly with /S elongatum maxim. 



Distribution: Northern and arctic regions of Europe, alpine regions of the middle 

 Europe, northern Asia to Kamtchatka, Turkestan, the Altai, the Sayansk district, the 

 government of Irkutsk and Trans Baikal, Yakutsk, northern Mongolia, northern Man- 

 chooria, Sakhalin, Canada. 



Sedum populifolium L. Fil. Supplem. p. 242; Ledeb. Fl. Alt. II, p. 189; Ledeb. 

 Fl. Ross. II, p. 180; K]>u.i, <5.t. A.it. II (1903) p. 457. 



On moist, shady, mossy cliffs on the banks of the Bei-kem, in several places be- 

 tween Utinski porog and Buluk. In flower, and with partly ripe fruits, at the end of August. 



Distribution: Southern Siberia (eastern pail of the governments of Tomsk and 

 Yeniseisk), northern Mongolia. 



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