Saxifraga. — Sect. 1 . Boraphila. — § 3. Nivali-virginienses. 29 



zona: San Francisco Mountains, um 3800 m (Knowlton, Fl. of Arizona n. 127. — 

 U. St. Nat. Herb. — f. franciscana). 



C. Westamerikanische Wüsten- und Steppenprovinz: Death Valley, bei 

 dem See an der Fähre zur White Chief mine, 360 m oberhalb Mineral King, um 

 1000 m ü. Bf. (V. Coville and Funston, Death Valley Expcd. n. «519. — Blühend 

 im August — U. St. Nat. Herb.). 



Var. ß. interrupta (Greene) Engl, et Irmscher. — S. mterrupta Greene in Baker, 

 Plants of Southern Colorado n. 375. — Caules floriferi 2 — 3,3 dm longi, inflorescen- 

 tiam spiciformem usque 7 cm longam gerentes; inflorescentiae rami internodiis bre- 

 viores, sessiles, vel inferiores brevissime pedunculati. Petala 3 — 4,5 mm longa. 



Mittlere Rocky Mountains. — Wyomhag: Telephone Mines, Albany County 

 (A. Nelson in Univ. of Wyoming, PI. of Wyoming n. 7900). — Idaho: Saw tooth 

 (W. Eversmann n. 593. — U. St. Nat. Herb.). — Colorado: 39— 44° n. B. (Hall 

 and Harbour n. 4 94), Rabbit Ear Range, Routt County (N. Goodding in Univers, of 

 Wyoming, PI. of Colorado n. 1582), Pagosa Peak, 3800 m (C. F. Baker, PI. of South 

 Colorado n. 375), Pike's Peak, 3000—4000 m (J. Ball — Herb. Berlin), Marshall 

 Paß, 3300 m (C. F. Baker, PI. of West Central Colorado n. 493), Durango, um 3000 m 

 (F. Tweedy n. 469), Poudra Canon, am Flußufer um 3100 m (Trandall, Fl. of Colo- 

 rado n. 4 61. — U. St. Nat. Herb. — Blühend Juni — August). 



Var. /. austrina A. Nelson in Bot. Gaz. XXXI. (4901) 394. — S. amtrina A. Nels. 

 in Coulter and Nelson, New Man. of Bot. Central Rocky Mount. (1909) 240. — Caules 

 floriferi usque 2 dm longi, saepius complures, tenuiores, inflorescentia laxiore plus mi- 

 nus ve thyrsoideo-paniculata terminati. — Petala ut Var. in typica. 



Mittlere Rocky Mountains. — Colorado: Rerwind (M. Archibald n. 236 

 nach Nelson 1. c. 395), Hügel westlich von Soldier Canon (Herb. St. Agric. Cull. Color. 

 n. 4045. — Herb. Berlin). 



Var. d. crenatifolia (Small) Engl, et Irmscher. — Micranthcs crcnatifolia Small 

 in North Amer. Fl. XXII. 2. (1905) 134. — Folia basalia latiora quam in Var. typica, 

 lamina cuneato- vel flabellato-orbicularia vel obovata, crenata. Flores minores; petala 

 sepalis subaequilonga. 



Nördliche Rocky Mountains. — Montana: Deer Lodge (F. W. Traphagen 

 — Herb. Bot. Gard. New York). 



Nota: Hujus plantae duo tantum specimina in herbario horti botanici New York conser- 

 vantur, quorum photographiam et flores duos vidimus. Florum petala auteoi non breviora quam 

 sepala sunt ut cl. Small 1. c. indicat. Certe haec planta Saxifragae rhomboideae valde aiti- 

 nis est. 



15. Typus polymorphus S. nivalis L. [Fl. läpp. 1737 n. 176 t. 2, flg. 5, 6] Spec. 

 ed. 1. (1753) 401, ed. 2. (1762) 573; Fl. suec. ed. 1. (1745) n. 354, ed. 2. (1755) 

 141 n. 368; Oed. in Fl. dan. (1761) t. 28 f. 12; Lightf. Fl. scot. (1777) 221 t. 12; 

 Willd. Spec. II. 1. (1799) 645; Smith Engl. Bot. t. 440, Fl. brit II. (1805) 449; 

 Sternb. Rev. (1810) 12, Suppl. II. (1831) 47, in Sturm, Deutschi. Flora I. 9. (1814); 

 Wahlenberg, Fl. läpp. (1812) 113, Fl. suec. I. (1824) 260; Don in Transact. Linn. 

 Soc. XIII. (1821) 387; Ser. in DC. Prodr. IV. (1830) 38; Chamisso in Linnaea VI. (183«) 

 554; Hook. Fl. bor. am. I. (1833) 248; Torrey and Gray, Fl. North Am. I. (1840) 571 ; 

 Reichb. Fl. germ. excurs. (1832) 553; Koch, Synops. Fl. germ. ed. 1 (1837) 277, 

 ed. 3. (1857) 239; Engl. Mon. Gatt. Sax. (1872) 145; Blytt, Norges Flora 111. (1876) 

 903; A. Blytt, Handbog i Norges Flora (1906) 406; Lange, Consp. Fl. Groenl. in Med- 

 delels. om Grönl. III. (1880) 59; A. G. Nathorst, Om Vegetationen pä Spetsbergens Veat 

 Kust, in Bot. Not. (1871), Nya bidrag tili kännedomen om Spetsberg. Kärlväxt. in K. 

 Svensk. Vet. Akad. Handl. XX. (1883) 1,4, Botaniska Anteckningar frän nordvestra 

 Grönland in K. Svensk. Vet. Akad. Öfters. 1884; Hart, Bot. Brit. Pol. Exp. in Journ. 

 of Bot. 1880; Kjellraan, Vegaexped. Vetenskaps. Jakttagelser (1881/83) 763; Warnung 

 in Bot. Tidsskr. XVI. 1. (1886) 14 flg. 24; Britton et Brown, III. Fl. North In. St. 

 (1896 — 98) 174 flg. 1834; Andersson et Hesselraann, Bidrag tili kännedomen (MB Speis- 



