Saxifraga.'] DECANDRIA — DIGYNIA. 175 



reniform on long footstalks palmato-lobate, superior ones nearly 

 sessile subtrifid, stem simple bulbiferous with one terminal 

 flower. E. Bot. t. 664. 



Dry rocks (not about rills) on the highest of the Breadalbane moun- 

 tains ; summit of Ben Lawers, and on Craigalleacli. Fl. June — Aug. 

 If. — 3 — 4 or 5 inches high, slender. Leaves glabrous, and the stem, 

 which droops at the extremity, nearly so. In the axils of the small 

 upper leaves, instead of flowers, are clusters of minute reddish bulbs. 

 Frequently there is no fiower, and I have never seen more than one 

 upon a stem, and that is terminal, large in proportion to the size of the 

 plant, and white ; petals retuse. In the E. Bot. figure, the root-leaves 

 are much less deeply lobed than in my specimens. 



11. S. rivuldris, L. (alpine Break Saxifrage); leaves 3 — 5- 

 lobed palmated glabrous on long stalks, stem slender branched 

 pubescent, branches few-flowered, bracteas oblong sessile 3- 

 lobed and entire, capsule half-inferior. E. Bot. t. 2275. 



Moist alpine rocks in Scotland ; rare. Near the summit of Ben 

 Nevis, but very scarce, as it is likewise on Ben Lawers. Plentiful 

 on Loch-na-gar, in Forfarshire. Fl. Aug. Sept. 14- • 



12. S. tridactylites, L, (rue-leaved Saxifrage); glandular and 

 viscid, leaves cuneate 3 — 5-fid, the uppermost bracteas undi- 

 vided, stem panick'd, pedicels single-flowered, capsule inferior. 

 E. Bot.t. 501. 



Common on walls and dry barren ground, in England and the Low- 

 lands of Scotland ; rare however in the west of Scotland, and especially 

 in the Highlands. Fl. May, June. 0.-2—4 inches high. Whole 

 plant covered with viscid hairs. Petals small, pure white, scarcely 

 longer than the segments of the calyx. Capsule almost wholly inferior. 



13. S. hypnoides, L. (inossy Saxifrage); root-leaves 3 or 5- 

 cleft, those of the procumbent shoot undivided or 3-cleft all bris- 

 tle-pointed and more or less fringed, segments of the calyx ovate 

 pointed, petals roundish-obovate — a. leaves of the procumbent 

 shoots undivided, sometimes with axillary buds. S. hi/pnoides, 



L E. Bot. t. 454. — >S'. leptophylla, Pers — Don. — E. FL v. ii. 



p. 279. — /3. leaves of the procumbent shoots either undivided or 

 3-cleft, petals usually broad. S. platypetala, E. Bot. t. 2276. 

 ~S. hirla, Don.—E. Bot. t. 2291. 



Frequent in rocky mountainous situations, England, Scotland, and 

 Ireland. Fl. May — July. If. . — An abundant and rather variable plant : 

 and I fear the five following species of Mr Don, or Sir J. E. Smith, are 

 only slightly modified forms of the true hypnoides. 



\, S. affiuis, Don; " radical leaves 5-cleft, those of the trailing shoots 

 mostly 3-cleft, lobes linear pointed, segments of the calyx awl-shaped 

 channelled pointed recurved, petals oblong inflexed at the edges." Tr. 

 of Linn. Soc. v. xiii. p. 418. E. Fl. v. ii. p. 275. On the top of 

 Brandon mountain, Ireland. 



2. S. incurvifolia, Don, " somewhat glabrous, radical leaves 5-cleft, 

 those of the trailing shoots 3-cleft, segments lanceolate obtuse incurved, 

 calycine segments ovate acute, petals roundish emarginate." Tr. of 

 Linn, fSoc v, xni.p. 423. E. Fl, v. ii. p. 277. — Alpine rocks, Ireland. 



