Near Ust Abakansk, in dry, grass-grown places, and on cliffs near Uibat. Nearly past 

 flowering in the middle of June. 



Distribution: Southern arid eastern Russia, south-western Asia, Siberia, except the 

 eastern portions. 



Potentilla subacaulis L. Syst. Nat. ed. X (1758) p. 1065 et Spec. PI. ed. II (1763) p. 

 715; Wolf, Monogr. Gatt. Potentilla p. 632; Ledeb. Fl. Alt. II, p. 261; Turczan. Cat. Baical. 

 no. 413; Karel. et Kiril. Enum. PI. Fl. Alt. no. 315; Turczan. Fl. Baical.-Dahur. (1843) p. 

 610, no. 404. P. cinerea /3 trifoliata Ledeb. Fl. Ross. II, p. 54 ex parte. 



Scattered on dry cliffs, dry hills, etc., on the steppes between Minusinsk and Ust Aba- 

 kansk. The specimens collected, taken at the beginning of June, are, for a great part, 

 already past flowering. I have also found the species in the Urjankai country, at Ust Sisti- 

 kem, the Kamsara, Ust Tara-kem, and in several places on the steppes about the Ulu- 

 kem, between Bjelosarsk and Cha-kul. 



Distribution: Throughout southern Siberia,, from the government of Tomsk to the 

 eastern parts of the Amoor Province, northern Mongolia, north-eastern Tibet, eastwards 

 to Manchooria. 



PolenUUa fragarioides L. Spec. PL ed. II (1762) p. 710; Wolf, Monogr. Gatt. Poien- 

 iillap. 635; Ledeb. Fl. Alt. II, p. 248; Turczan. Cat. Baical. no. 429; Ledeb. Fl. Ross. II, p. 38; 

 Turczan. Fl. Baical.-Dahur. (1843) p. 615, no. 410; KptM. Oj. A.it. II (1903) p. 376. 



var. typica Maxim. Mel. Biol. IX, p. 158; Wolf, 1. c. p. 637. 



Rather common in meadows and in thickets on the islets in the Yenisei, near Ust 

 Abakansk, where taken by me in full flower at the beginning of June. It was also found 

 by me near Kushabar, and in the Urjankai country, at Ust Tara-kem. 



The specimens collected have rather low and tender stems, about 10 cm. high, and 

 are always destitute of runners. The flowers are small, 9 — 14 mm. in diameter. The 

 petals, only slightly exceeding the calyx in length, differ from \\'olf's description in 

 having generally the margin distinctly emarginate. Komarow, in his <&.i. MaHbisKypin 

 II, 2, p. 494, however, reports in this variety «petala Integra vel leviter emarginata». 

 Otherwise, the specimens collected agree rather perfectly with Wolfs description. Some 

 specimens are considerably coarser, however, with rather vigorous stems, about 15 cm. 

 high, and larger flowers, reaching up to 16 — 18 mm. in diameter, and with cordiform 

 petals more indented at the margin, their breadth in all cases exceeding their length. 

 These villous forms, with long, white, spreading hairs, recall, in some respects, the 

 specimens of var. Spiengeliana Maxim, which I have seen from Sakhalin, figured in 

 Printz, Vase. PI. Sakhalin (1916) p. 13, tab. II, and form distinct transitions to these. The 

 last-mentioned variety, the most typical representatives of which are to be found in east- 

 ern Asia (Sakhalin and Japan), and where it is especially common, grows, according to 

 Krylow, westwards to Omsk. Thus, the above varieties seemed, for the rest, to pass quite 

 imperceptibly into each other. 



287 



