Lc(lfl). l'"l. All. 11, p. 2:)U; 'liurziui. I'l. liaicaL-Dahur. (hSi;i) j). (i27, no. lliM. I'dlfiililht 

 CoiiKdiim Ncsll., TuiTzan. Cat. Haical. no. 130. 



01 rallu'i lommoii (iccunt'iu r in llic Iravorscd regions ol sonlluTii Sihciia and llic, 

 I rjankai connliy. in swampy meadows, on llie borders of lakes and swamps, and on tlie 

 hanks of slow rivers. On llie rivers Abakan and Yenisei, at Kushabar, Tst Algiac, Usl 

 Sisli-kem, the Kanisara, llie Tara-kem, and in llie bogs on the Dora Sleppe. In the speci- 

 mens collected llie petals arc comparatively smaller and narrower than usual in Scandi- 

 navian ones; they arc also broadest almost at tiic base and gradually tapering and pro- 

 longed into a point u|)\\ards. The dow ny stems arc rather densely glandulous above. 



Distribulion: Northern and middle l^uro])e. Caucasia, Trans Caucasia, Armenia, 

 Siberia, norllicrn Mongolia. Sakhalin, .lapan. North America, (irecnland. 



Polentilla frulioosa L. Spec. PI. ed. 11 (1762) p. 709; Wolf. ISIonogr. Gall. Polenlilln 

 in lliblioth. P.olanica If. 71 (1908) p. .").">: Ledeb. Fl. Alt. II, p. 2:51: Turczan. Cat. Baical. no. 

 IKS: Karel. cl Kiril. Enum. PI. Fl. Alt. no. 297: Ledeb. Fl. Ross. II. p. lil; Turczan. Fl. Bai- 

 cal.-Dahur. (IHli)) p. ()2."). no. 121: i;|n,i.i. «l).i. A.rr. II (1903) p. 370. 



Veiy common along the banks of the river Amyl. on cliffs ami in stony places 

 which are sometimes inundated. Very common in the Urjankai country, for instance 

 at Ust Algiac and Tshernoretska, in grass-grown places at Usl Tara-kem and on the ITu- 

 kem, near Bjelosarsk, where it usually does not attain a greater height than 'A — 1 m. The 

 species flowers here in July. There seemed to occur all intermediates between van vul- 

 garis Wii.i.n. (Herb. e\ Scni.Kcnri). in Mag. Ges. Naturf. Fr. Berlin VII (1810) p. 285) and 

 the following variety. 



ixir. tenuifolia Lehm. Revis. Pvlenl. (1856) p. 17: Wolf, 1. c. p. .58. 



Rather typically develojied specimens have been collected by me on the river .\ba- 

 kan, near Uibat. 



Distribution: The British Isles, southern Sweden. Russia, Siberia, northwards to 

 67^ 25' north lat., northern Mongolia, south-western and central .\sia, eastern Asia, Sak- 

 halin, Japan, North Anu-rica. 



Potentilla bifurca L. Spec. PI. ed. II (1762) p. 711: Wolf, Monogr. Gatt. Polenlilln 

 p. 62: Ledeb. Fl. Alt. II, p. 245; Turczan. Cat. Baical. no. 419; Karel. et Kiril. Enum. PI. Fl. 

 Alt. no. 303: Ledeb. Fl. Ros.s. II, p. 43: Turczan. Fl. Baical.-Dahur. (1813) ]i. 613. no. 408; 

 Kpi.i.i. 'ki. A. 11. 11 (1903) p. 372. 



This .species is rather frequent in the tracts about the river .\bakan. especially on 

 the steppes, in dry meadows, on open, grass-grown and dry declivities, where 1 have col- 

 lected it flowering and partly past flowering in June. In August with ripe fruits near U-st 

 Sisti-kem, Ust Tara-kem, and at Bjelosarsk. The specimens collected exhibit several 

 variations, which, however, may be grouped into the following 2 varieties: 



imr. typica Wolf, 1. c. p. 64. P. bifurca « major Ledeb. Fl. Ross. IT, p. 43. 



27 281 



