92 DECANDRIA DIGYNIA. [CI. 10. 



Alpine rocks. If. 6, 7. Lateral shoots long, leafy, hairy. Fl. white. 



17. S. affinis. (Involute S.) Radical leaves 5-cleft ; those of the 

 trailing shoots mostly three-cleft ; lobes linear, pointed. Seg- 

 ments of the calyx awl-shaped, channelled, pointed, recurved. 

 Petals oblong, inflexed at the edges. 



Mts. in Ir. If. 5, 6. Bright green. L. tapering at the base. Pet. 

 white. 



18. S. platypetala, 32. 2276. (Broad-petaled S.) Radical leaves five- 

 cleft ; those of the trailing shoots three-cleft ; lobes bristle- 

 pointed. Segments of the calyx ovate, pointed, erect. Petals 

 nearly orbicular, flat, with many lateral veins. 



Mount. If. 6. Leaves narrow. Pet. large, white. 



19. S. incurvifolia, (Curve-leaved S.) Radical leaves five-cleft, those 

 of the upright shoots three-cleft ; segments lanceolate, obtuse, 

 incurved. Segments of the calyx ovate, acute. Petals roundish, 

 slightly cloven. 



Lofty rocks in Ir. If . 6 ? At first smooth, then hairy. Pet. triple- 

 ribbed. 



20. S. denudata, (Grampian S.) Radical leaves five-cleft ; those of 

 the upright shoots three-cleft ; segments linear-awl-shaped, acute, 

 smooth, bristle-pointed. Segments of the calyx lanceolate, mi- 

 nutely pointed. Petals obovate, cloven. 



Gramp. hills. If . 6 ? Very smooth. Shoots very short. Fl. white, 

 bell-shaped. 



21. S. hypno'ides, 7. 454. (Mossy S.) Radical leaves three- or five- 

 cleft, those of the long, procumbent shoots undivided ; all bristle- 

 pointed and fringed. Segments of the cabyx ovate, pointed. 

 Petals obovate. Stigmas nearly smooth. 



Rocky Mts. If . 5, 6. Tufted ; pale green. Shoots entangled. Cal. 

 ovate. 



22. S. elongella, 32. 2277. (Long-stalked S.) Radical leaves three- 

 or five-cleft ; those of the upright, short shoots undivided or 

 three-cleft ; all bristle-pointed, slightly fringed. Flower-stalks 

 very long, simple and naked. Calyx pointed. Petals obovate. 



Scot, mount. If . 6. Stem deeply branched, leafy. Fl. large, white. 



23. S. leptophylla, (Narrow-leaved S.) Radical leaves deeply five- 

 cleft ; those of the very long procumbent shoots deeply three- 

 cleft, or undivided ; lobes linear-lanceolate, very sharp, widely 

 spreading. Petals spathulate, entire. Calyx oblong-ovate. 



Welsh mount. If . 6 ? Densely tufted. Fl. many, drooping, white. 



24. S. Icetevircns, (Bright green S.) Leaves deeply three- or five- 

 cleft, with linear acute segments. Shoots long and trailing. Calyx 

 lanceolate, pointed. Petals spathulate, slightly cloven. 



Scot, mount. If. . 6 ? Densely tufted. Stems few, with 3 white fl. 



25. S. pedatifida, 32. 2278. ( Web-foot-leaved S.) Radical leaves 

 kidney-shaped, divided in a pedate manner into seven lobes. 

 Panicle cymose, level-topped, many-flowered. Calyx superior, 

 with linear-lanceolate segments, as long as the capsule. 



Clova Mts. Scot. If .5,6. Larger; the shoots rooting. Fl. small, white. 



