210 



SAXIFRAGACEJL I. SAXIFRAGA. 



1 -flowered, and are as well as the calyxes clothed with clammy 

 down. Flowers snow-white ; nerves of petals branched. 



Var. ft, plena ; flowers double. Common in gardens. 



Var. y, multicaulis (Lapeyr. fl. pyr. t. 27.) stems numerous, 

 short ; lower leaves lobed, broadly crenated : upper ones obo- 

 vate, acuminated, entire, rarely 1-2-toothed ; peduncles many- 

 flowered, tlf. H. Native of the Pyrenees. S. granulata y, 

 ramosissima, Ser. in D. C. prod. 4. p. 36. 



Var. S, Ctrsicana (Ser. in Duby, bot. gall. 1. p. 211.) plant 

 very small; stem 1-4-flowered ; leaves small, crenately lobed ; 

 flowers hardly smaller than those of the species. %. H. Na- 

 tive of Corsica. S. rivularis, Ph. Th. exsic. 



Var. c, pendulijloTa (Ser. in Duby, bot. gall. 1. p. 211.) leaves 

 reniform, broadly crenated ; flowers somewhat umbellate, pen- 

 dulous ; peduncles 1-flowered, weak. "H- H. Native of Au- 

 vergne. S. penduliflora, Bast, in journ. bot. 1814. p. 17. and 

 D. C. fl. fr. 5. p. 519. 



Var. r), sessilijlora (Ser. in D. C. prod. 4. p. 36.) stems quite 

 simple ; leaves reniform, crenated ; flowers sessile, subcapitate. 

 I/. H. In dry places. 



Var. , bulbilldris (Ser. 1. c.) stem more or less branched ; 

 flowers numerous, sessile, abortive, transformed into little bulbs, 

 which rise from the axils of the leaves. If. . H. Native of 

 Sicily. S. granulata gemmifera, Haw. enum. sax. p. 23. 



Granular -rooted Saxifrage. Fl.May. Brit. PL -^ to 1ft. 



33 S. ODONTOI'HY'LLA (Wall. cat. no. 454.) leaves reniform, 

 bluntly lobed, rather pubescent ; stem few-leaved, many- 

 flowered, and are as well as the pedicels and calyxes clothed 

 with glandular pubescence ; petals obovate, unguiculate ; stig- 

 mas diverging, capitate. It. H. Nativeof Nipaul, in Kamaon. 

 Roots woody, fibrous. Flowers white. Pedicels 1-flowered. 

 Very like S. granulata. 



Tooth-leaved Saxifrage. PL ^ to foot. 



34 S. BULBIFERA (Lin. spec. 577.) radical leaves reniform, 

 petiolate, crenated : cauline ones sessile, deeply lobed ; calycine 

 segments triangularly ovate, acute ; stem branched, many- 

 flowered. If. . H. Native of the south of Europe, as in Spain, 

 in stony meadows and shady places ; also of Switzerland, on 

 dry hills. Sternb. sax. p. 15. t. 12. f. 1. Mor. hist. 3. p. 

 474. sect. 12. t. 9. f. 24. Column, ecphr. 1. p. 318. t. 317. 

 S. vivipara, Vest, in flora, 1820. p. 405. Flowers white, smaller 

 than those of S. granulata. Peduncles elongated, 1-flowered, 

 clothed with glutinous down as well as the calyxes. Stem beset 

 with viscid hairs. Leaves pilose. 



Var. /3, veroniccefblia (Sternb. rev. sax. 16. t. 12. f. 1. and 

 in Sturm, deutschl. fl. 35. with a figure). I/ . H. Haw. enum. 

 sax. 23. S. veronicaefolia, Bertol. amoen. p. 361. There is 

 also a variety of this with a 1-flowered stem, under the name 

 of S. bulbifera drctica, Haw. enum. sax. p. 24. ? 



Bulb-bearing Saxifrage. FL Ju. Jul. Clt. 1819. PL | to 1 ft. 



35 S. CE'RNUA (Lin. spec. p. 577.) leaves glabrous, petiolate; 

 radical ones reniform, deeply lobed : cauline ones palmate ; 

 calycine segments ovate, obtuse ; petals spatulate, emarginate ; 

 stem quite simple, generally 1-flowered. %. H. Native of 

 Lapland, Pyrenees, Switzerland, and Scotland, about alpine rills 

 on the loftiest mountains. In North America, on the arctic 

 shore and islands, and in Kotzebue's Sound ; also of Siberia, on 

 alpine rocks, at the rivers Ursal and Tschuja. In Scotland, 

 on Ben Lawers and on Craigalleach. Fl. dan. t. 22. Gunn. fl. 

 norv. no. 528. t. 9. f. 2. Sternb. sax. 'p. 18. t. 12. f. 2. Lo- 

 baria cernua, Haw. enum. sax. p. 20. Lin. fl. lapp. p. 172. t. 2. 

 f. 4. Bulbs scaly ; scales fleshy, rising from the base of the 



Eetioles of the primordial leaves. Stem simple, 1-flowered, 

 ;afy, with small aggregate bulbs rising from the upper leaves. 

 Flowers solitary, large, campanulate, drooping, white ; nerves 

 of petals branched. The specimens from the Rocky Mountains 



of North America are more leafy, especially on the stem amongst 

 the bulbs, which are very numerous. 



Var. j3, ramosa (Ser. in D. C. prod. 4. p. 36.) stem a little 

 branched, few-flowered ; flowers nearly all transformed into 

 bulbs. If.. H. Nativeof the Alps of Lapland and Norway. 



Var. y, Ledeboiiri ; stem branched ; branches elongated, 1- 

 flowered ; leaves crenated : lobes acutish. If. . H. Native of 

 Altaia, on alpine rocks, at the rivers Tschuja and Ursal. 



Var. S, multiflora (Hook, et Arn. in Beech, voy. pt. bot.) 

 plant branched ; each branch bearing a large flower, and no 

 bulbs. Tf.. H. Native of Kotzebue's Sound. Perhaps S. Ste- 

 phaniana, Sternb. sax. suppl. p. 8. t. 6. f. 2. may be correctly 

 referred to this variety. 



Drooping- fiowered Saxifrage. FL June, July. Scotland. 

 PL i to | foot. 



36 S. SIBI'RICA (Lin. spec. 577.) root granular; leaves hairy, 

 petiolate : radical ones reniform, palmately lobed : cauline ones 

 digitate ; pedicels elongated, remote, capillary ; petals obovate, 

 with simple nerves ; stem much branched, filiform. I/ . H. 

 Native of Siberia, Altaia, and the Alps of Caucasus, among 

 rather humid shaded rocks, or among stones ; also of Labrador 

 and Newfoundland. Sternb. sax. p. 23. t. 25. f. 1. Gmel. sib. 

 4. p. 162. no. 74. S. granulata /3, Steven de sax. cauc. in 

 mem. mosq. 4. p. 77. no. 3. S. grandiflora, Sternb. sax. t. 12. 

 f. 4. ? S. cymbateria, Bieb. fl. taur. 3. p. 292. no. 780. Lo- 

 baria Sibirica, Haw. enum. sax. 21. Lobes of calyx ovate- 

 linear. Petals white. Stem beset with viscid hairs. 



Siberian Saxifrage. FL June, July. Clt. 1802. PL ascend. 



37 S. BRACTEATA (D. Don, in Lin. trans. 13. p. 367.) radical 

 as well as cauline leaves on long petioles, renifprm, and deeply 

 lobed ; flowers in crowded corymbs, bracteate ; stem leafy, 

 flexuous, branched, ascending, clothed with viscid villi. % . H. 

 Native of Eastern Siberia. Flowers white, like those of S. 

 cernua, but a little larger ; calycine segments broadly ovate, 

 obtuse. Petals obovate, a little longer than the calycine seg- 

 ments. 



Eracteated-fiowered Saxifrage. PL ^ foot. 



38 S. RIVULA'RIS (Lin. spec. p. 577.) stem weak, quite sim- 

 ple ; leaves reniform, on long petioles, glabrous ; flowers usually 

 by threes, sessile, bracteate. Q. H. Native of the higher 

 Alps of Europe, as in Lapland, Norway, as well as of Siberia. 

 It is also found in North America, as in Labrador, Arctic 

 Sea shore and Islands, Kotzebue's Sound, and in elevated 

 places among the Rocky Mountains. In Scotland about 

 Alpine rivulets, and in wet fissures of rocks, as on Ben Ne- 

 vis, near the lake in the ascent: also on Ben Lawers, and 

 at Loch Rannoch. Lin. fl. lapp. no. 174. t. 2. f. 7. FL 

 dan. t. 118. Smith, engl. bot. 2275. Sternb. sax. p. 19. t. 12. 

 f. 3. Plant annual. Stem weak, ascending, few-leaved, fur- 

 nished with viscid hairs above. Leaves 5-6-lobed ; lobes ob- 

 tuse. Flowers small, white, bracteate. Calycine segments 

 ovate, very blunt, obtuse, conniving. Petals oval, obtuse, triple 

 nerved. 



Brook Saxifrage. Fl. June, July. Scotland. PL 2 inches. 



39 S. HYPERBOREA (R. Br. in Parry's first voy. append, p. 

 274.) stem woolly, 2-flowered ; leaves glabrous : radical ones 

 palmate, on long petioles ; petals 1 -nerved. %.H. Nativeof 

 Ireland, and Arctic America. S. rivularis /3, Hook. fl. bor. 

 amer. 1. p. 246. Flowers white. Perhaps only a variety of S. 

 rivularis. 



Northern Saxifrage. PL 2 inches. 



40 S. NU'TANS (D. Don, in Lin. trans. 13. p. 268.) stem rather 

 pubescent, decumbent at the base, jointed in the middle, and 

 furnished with one leaf at the joint: raceme drooping, few- 

 flowered : radical leaves on long petioles, reniform, deeply and 

 coarsely toothed, with a few scattered stiff hairs on both sur- 



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