SAXIFRAGACE. 
pyr. sax. p. 57. t. 32. Smith; 
engl. bot. t. 454. S. elongélla, 
platipétala, dénsa, curvata, densi- 
fòlia, Schleich. cat. 1821. Herb 
densely tufted before flowering, 
quite glabrous, but afterwards 
becoming loose, surculose, and 
villous. Surculi reddish as well 
as stems, which are erect, shin- 
ing, brittle, and 2-4-flowered. 
Surculine leaves furnished with 
ovate, acute buds in the axils. 
Cauline leaves few, linear-lan- 
ceolate, undivided. Peduncles 
elongated, 1-flowered, clothed 
with viscid down as well as the 
calyxes. Petals white, triple-nerved, rose-coloured on the out- 
side at the apex ; nerves simple. 
Var. B, viscdsa (D. Don, in Lin. trans. 13. p. 447.) plant 
softer and looser ; flowers larger. 2.H. Native of the Alps 
of Scotland. S. viscdsa, Hortul. 
Var. y, angustif dlia (D. Don, l. c.) surculi ascending ; leaves 
longer. %. H. Native of the Alps of Scotland. S. angusti- 
folia, Hortul. S. hypnoides 6, Aitdni, Haw. enum. sax. p. 
332. S. Sponhémica, Gmel. fl. bad. 2. p. 224. ? 
Var. 6, muscdsa (D. Don, 1. c.) plant one half smaller and 
slenderer ; segments of leaves smaller ; flowers smaller. Y.H. 
Native of the Alps of Scotland. 
Var. £, pulchélla (D. Don, l. c.) plant more robust ; surculi 
thicker and stiffer, and more rigid ; buds obtuse, more crowded ; 
surculine: leaves broader, with a furrow on the upper surface. 
u.H. Native of the Alps of Scotland. 
Var. £, spatulata (Haw. enum. sax. p. 33.) leaves of the sur- 
culi spatulate, hardly acuminated, somewhat tridentate; stem 
few-flowered. 2. H. Native of Switzerland. S. spatulata, 
aw. misc. nat. p. 165. Schleich. cat. 1821. but not of Desf. 
S. craterifoérmis, hort. oxf. ex Schleich. cat. 1821. S. dubia, 
Schleich. cat. 1821. 
Hypnum-like Saxifrage. Fl. April, in Britain. Pl. 4 to 4 ft. 
163 S. conprnsa‘ra (Gmel. fl. bad. 2. p. 226. t. 3.) surculi 
procumbent, short; radical leaves 5-parted: surculine ones 
trifid : segments linear, glabrous, awned; calycine segments 
triangularly ovate, acute, mutic. 2/.H. Native of Sponhemia, 
among rocks, and on the Alps of Scotland; also of Kotzebue’s 
Sound, if S. cæspitòsa, Cham. in litt. be the same. S. dénsa 
and S. lævis, Hortul. S. palmàta, Lejeune, fl. spa. 1. p. 194. 
S. Gmelìni, Host. fl. aust. 1. p.512. S. flavéscens, Sternb. rev. 
sax. suppl. p. 13. t. 9. f. 2.? S. le'vis, trifida, rupéstris, and 
congésta, Schleich. cat. 1821. Plant quite glabrous, shining, 
of a beautiful green, densely tufted before flowering, but after- 
wards loose and surculose. ` Surculi procumbent, without buds. 
Stems numerous, nearly naked, glabrous, 2-3-flowered. Pe- 
duncles glabrous, l-flowered, curved when the flowers are in 
the bud. Calyx rather downy. Petals white, triple-nerved, 
rose-coloured on the outside at the apex; nerves simple. 
Condensed Saxifrage. Fl. May, Ju. Scotland. PI. } foot. 
164 S. ELONGE'LLA (Smith, in Lin. soc. trans. 10. p. 340. 
engl, bot. 2277. exclusive of the synonyme of Donn, cant.) 
Surculi short, erect; radical leaves 5-cleft or trifid; surculine 
leaves for the most part tridentate: teeth mucronate; calycine 
Segments ovate, awnless ; petals obovate. 4. H. Native of 
Scotland, on humid rocks near Lintrathen, in Angusshire. S. 
hypnoides a, elongélla, Ser. in D. C. prod. 4. p. 30. Herb 
quite glabrous, and densely tufted before flowering, but after- 
wards becoming loose and rather villous. Stems erect, nearly 
k 2-3-flowered, smoothish. Petioles slender, dilated. Pe- 
OL. 11. 
I. SAXIFRAGA. 225 
duncles very long, 1-flowered, beset with glanduliferous hairs. 
Petals white, triple-nerved; lateral nerves curved, branched : 
middle one simple, straight. 
Longish-stalked Saxifrage. Fl. Apr. May. Scot. Pl. + ft. 
165 S. LEPTOPHY'LLA (Pers. syn. 1. p. 490.) surculi procum- 
bent, very long, slender; radical leaves 5-parted: surculine 
ones 3-parted or undivided: segments linear-lanceolate, very 
acute, divaricate ; calycine segments oblong-ovate; petals spa- 
tulate, quite entire. %. H. Native of the Alps of Switzer- 
land, and on the mountains of Wales. S. retrofléxa, Hortul. 
Plant quite glabrous, and densely tufted before flowering, but 
afterwards loose, diffuse, and surculose, and beset with viscid 
villi, Stems numerous, flexuous, smoothish, shining, many- 
flowered. Leaves without any buds in the axils. Segments of 
leaves awned. Flowers drooping, white. Peduncles elongated, 
and are as well as the calyxes beset with glandular pili, Caly- 
cine segments ending in a reflexed mucrone each. Petals triple- 
nerved, with the nerves simple. 
Var. B, angustifida (D. Don, in Lin. trans. 13. p. 450.) plant 
slenderer ; segments of leaves narrower. Y%. H. Native of 
Wales, on the mountains. 
Slender-leaved Saxifrage. Fl. May, Ju. Wales. Pl. 4 ft. 
166 S. tarevirens (D. Don, in Lin. trans. 13. p. 451.) 
surculi procumbent, elongated ; leaves 5 or 3-parted: segments 
linear, acute ; calycine segments lanceolate, mucronate ; petals 
spatulate, emarginate. Y%.H. Native of the Alps of Scot- 
land, on the loftiest rocks, in moist situations, in Angusshire and 
Aberdeenshire, and on the hills to the north of Loch Lomond. 
Herb pale green, densely tufted before flowering, and quite 
glabrous, but afterwards becoming loose, diffuse, and surculose, 
and beset with long scattered villi. Surculi destitute ‘of buds in 
the axils of the leaves. Stems erect, few-leaved, usually 3- 
flowered, rarely 1-flowered. Radical leaves 5-parted : surculine 
ones 3-parted : lower cauline ones 5-parted : upper cauline ones 
undivided, lanceolate, and acuminated. Flowers campanulate, 
white, drooping while in the bud. Petals triple-nerved ; nerves 
simple, green. 
Pale green Saxifrage. 
§ 3. 
fibrous. 
167 S. ARAcHNOÍDEA (Sternb. rev. sax. p. 23. t. 15. and in 
Sturm, deutsch]. fl. 35. no. 7. with a figure) stems weak, diffuse, 
much branched, very pilose; leaves very thin, somewhat cune- 
ated, obovate, 3-5-notched ; flowers on long peduncles : pedun- 
cles divaricate ; lobes of calyx ovate-lanceolate, shorter than the 
tube, which is rather villous; petals ovate, entire, hardly ex- 
ceeding the calyx; styles much shorter than the calyx, parallel. 
X. (Sternb.) ©. (Ser.) H. Native of Tyrol, in shady rocky 
places. Moretti, sax. p. 28. Lobària arachnoídea, Haw. enum. 
sax. p. 20. Flowers white. 
Cobwebbed Saxifrage. Fl. April, June. Clt.? Pl. 4 to 3 ft. 
168 S. peTRÆ'A (Lin. spec. p. 578.) radical leaves palmately 
5-lobed: cauline ones tripartite and cut; peduncles very long, 
1-flowered; calycine segments linear, acute; petals obovate, 
truncate at the apex and emarginate, twice the length of the 
calyx. ©. H. Native on Mount Baldo, among broken rocks, 
and of the Alps of Carinthia; also of North America, in alpine 
rivulets on the Rocky Mountains. Wulf. in Jacq. coll. 1. p. 
200. Jacq. icon. rar. 1. t.81. S.geranioides, Host, syn. 231. 
S. rupéstris, Willd. spec. 2. p. 653. S. Pònæ, Sternb. sax. p. 
47. t. 18. and t. 1]. f. 6. and in Sturm, deutschl. fl. p. 35. fig. 
16. S. alba petræ'a, Pona, itin. p. 183. S. bianca, Calceol. itin. 
p- 12.—Pluk. alm. p. 331. t. 222. f. 3.—Moris. hist, 13. p. 379. 
sect. 12. t. 9. f£. 28. S. petræ'a a, B, and y, Ser. in D. C. prod. 
4. p. Pas Tridactylites petræ'a, Haw. enum. sax. p. 22. Plant 
8 
Fl. May, June. Scotl. 
Annual or biennial plants, without surculi. 
Pl. 4 foot. 
Roots 
Petals usually emarginate. 
