S ax i f r ag ac e ae Vent. 



Saxifraga androsacea L. Spec. PI. ed. II (1762) p. 571; Ledeb. Fl. Ross. II, p. 225; 

 KptM. *.i. A.JT. II (1903) p. 479; Engl, et Irmscher, Saxifrag. in Engl. Pflanzenr. H. 67 

 (1916) p. 302. 



/. iiniflora Wulf. in Fl. Nor. ed. Zool. Bot. Ges. Wien (1858) p. 464; Krylow, PI. Altai- 

 cae NovEfe IL no. 13 in Act. Hort. Petropol. XXI (1902) p. 16; Engl, et Irmscher, 1. c. 

 p. 304. 



The leaves are very small, entire, and, as the whole plant for the rest, slightly glan- 

 dular hairy, especially so along the margin. The stems are from 3 to 3,5 cm. high, uni- 

 florous, and furnished with generally 2 narrow, oblong, entire, slightly 3-nerved leaves, 

 from 3 to 7 mm. long, and rounded at the top. 



On moist cliffs in the Altaian, at an altitude of about 1900 m. above sea-level; with 

 flowers at the end of July. 



Distribution: Middle and southern Europe, the Altai and the Sayansk district. 



Saxifraga oppositifolia L. Spec. PI. ed. II (1762) p. 575; Bunge, Enum. Alt. p. 21; 

 Turczan. Cat. Baical. no. 487; Ledeb. Fl. Ross. II, p. 204; Turczan. Fl. Baical.-Dahur. 

 (1844) p. 259, no. 476; Kptiji. $.1. Axr, II (1903) p. 471. 



In the Altaian, above the limit of tree vegetation, on humid rocks; with flowers at 

 the end of July. 



Distribution: Arctic and alpine tracts of Europe, arctic islands, arctic and alpine 

 regions of Siberia, northern Mongolia, Tibet, North America. 



Saxifraga sibirica L. Spec. PI. ed. II (1762) p. 577; Ledeb. Fl. Alt. II, p. 121; Turczan. 

 Cat. Baical. no. 489; Karel. et Kiril. Enum. PI. Fl. Alt. no. 369; Ledeb. Fl. Ross. II, p. 219; 

 Turczan. Fl. Baical.-Dahur. (1844) p. 263, no. 480; Kpbi.rx. $.1. Ajt. II (1903) p. 477; Engl, 

 et Irmscher, Saxifrag. in Engl. Pflanzenr. H. 67 (1916) p. 262. 



var. eusibirica Engl, et Irmscher, 1. c. p. 264. 



The specimens collected have comparatively low stems, only about 6 cm. high. The 

 basal leaves about 1 cm. in diameter, always 5-lobed, the bracts cordiform. Petals 1 cm. 

 long, 214 times as long as the sepals. Stems, pedicels and petioles pubescent, especially so 

 on the upper parts, the blade generally more or less glabrous, f. vesiiia Engl, et Ihmscher- 



Rather common in the Altaian, in humid places, at altitudes of about 2000 m. 

 above sea-level; in full flower at the end of July. 



Distribution: Eastern and south-eastern Europe, Caucasia and south-western Asia 

 to Turkestan, the Himalayas, Tibet, Cashmere, through southern Siberia (the Altai, the 

 Sayansk district, Baikal, Trans Baikal) to the Amoor Province and Manchooria, northern 

 Mongolia. 



Saxifraga punctata L. Spec. PI. ed. II (1762) p. 574; Ledeb. Fl. Alt. II, p. 118; Ledeb. 

 Fl. Ross. II, p. 215; Kpti.!. cI>.t. A.it. II (1903) p. 476; Engl, et Irmscher, Saxifrag. in Engl. 

 Pflanzenr. H. 67 (1916) p. 9. Saxifraga aestivalis Fisch. et Meyer, Ind. Sem. Hort. Peti-o- 



270 



