SAXIFRAGE FAMILY 1 69 



lobed ; cauline leaves sessile, more deeply cut into more acute 

 segments ; flowers in a loose cluster, i in. across, inclined, pure 

 white. — Gravelly banks and meadows \ not uncommon. A 

 double variety is grown in gardens. — Fl. April — June. Perennial. 



^*-5f^7i-* Xufted pla?its with leaves palmately ait into 

 fui?'row segj?ie?its : flowers ivhite 



13. S. ccEspitbsa (Tufted Alpine Saxifrage), distinguished by 

 the obtuse lobes of its leaves, with few small, crowded flo2vers, 

 occurs very rarely on alpine summits, forming bright green 

 cushions. — Fl. May — August. Perennial. - 



14. S. Sternbergii^ a very hairy glandular species, with 3 — 4- 



CHKYSOSPLEXiu.M OPPOSiTiFOLiU-M {CotiiDioK Goldcti Sa.vi/ragc). 



lobed leaves, the lobes lanceolate, acute, fringed, occurs on alpine 

 rocks in the south-west of Ireland. — Fl. July. Perennial. 



15. S. rosacea, a closely-allied form, with 3 — 7-lobed leaves, 

 the lobes abruptly acuminate, occurs in North Wales. 



16. S. grcenldndica, another closely-allied form, i — 2 in. high, 

 densely tufted, with few^ cauline leaves ; leaves broadly wedge- 

 shaped, palmately 3 — 5-fid, with ovate-lanceolate acute lobes, 

 and {qsn floivers, has been recorded from Ben Lawers. 



17. S. hirta (Hairy Saxifrage), with 3 — 5-lobed leaves, very 

 finely cut into bristle-pointed lobes and flowers 2 — 4 together, 

 with subulate sepals and oblong 3-veined petals, the sides of 

 which are inflexed, occurs on the Galtee Mountains. — Fl. July. 

 Perennial. 



18. S. hypnoides (Mossy Saxifrage). — With trailing barren 

 shoots and erect flowering ones ; leaves mostly 3-cleft, bristle- 

 pointed, with narrow fringed segments with narrow triangular 



