206 



SAXIFRAGACE^E. I. SAXIFRAGA. 



12 LEPUROPE'TALUM. Calyx 5-parted. Petals 5, scale- 

 formed. Stamens 5. Styles 3, somewhat concrete at the base. 

 Capsule 1 -celled, 3-valved at the apex, many seeded. 



13 VA'HLIA. Limb of calyx 5-parted. Petals 5, spreading, 

 undivided. Stamens 5. Styles 2, capitate at the apex. Cap- 

 sule 1 -celled, 2-valved at the apex, 5-furrowed, crowned by the 

 lobes of the calyx. Seeds convex on the outside. 



14 CRYPTOPE'TALUM. Calyx turbinate, 5-cleft. Petals 5, 

 minute, spatulate. Stamens 5. Styles 3. Capsule 1 -celled, 

 3-valved, opening at the cells in the free part, with a parietal 

 placenta in the middle of each valve. 



TRIBE II. 



HYDRANGEA (plants agreeing with Hydrangea in being 

 shrubby). D. C. prod. 4. p. 13. 



15 HYDRA'NGEA. Flowers usually of two forms, one fertile 

 and hermaphrodite. Calyx globose, 10-ribbed, rather truncate ; 

 limb 5-toothed. Petals 5. Stamens 10. Styles 2, distinct. 

 Capsule 2-celled, with bent-in valves, dehiscing by a hole be- 

 tween the styles. 



16 CORIS-IDIA. Tube of calyx globose ; limb 4-toothed. Pe- 

 tals 4. Stamens 8. Styles 3-4, thick, fleshy. Fruit 4-celled, 

 many seeded. 



17 CIANITIS. Limb of calyx 5-toothed. Petals 5, rather 

 fleshy. Stamens 10. Styles 3-5; stigmas obtuse. Berry 

 crowned by the teeth of the calyx, somewhat 3-5-celled, many 

 seeded. 



18 ADA' MIA. Limb of calyx with 5 short teeth. Petals 5. 

 Stamens 10. Styles 5, ending in rather club-shaped 2-lobed 

 stigmas. Berry crowned by the teeth of the calyx, somewhat 

 5-celled, many seeded. 



19 BROUSSAI'SIA. Calyx 5-parted, hemispherical, free from 

 the ovarium. Petals 5, oblong, acuminated, with the acumen 

 reflexed as in umbelliferous plants. Stamens 10, hypogynous. 

 Ovarium roundish, crowned by the short style and truncate 

 stigma, 5-celled ; cells many seeded. 



Tribe I. 



^SAXIFRA v GE5i (plants agreeing with Saxifraga in being 

 herbaceous). D. C. prod. 4. p. 17. Saxifragese, R. Br. gen. 

 rem. exclusive of Hydrangeas. Herbs variable in habit, usually 

 dwarf. Leaves exstipulate, alternate, rarely opposite. Flowers 

 disposed in racemes or panicles, rarely solitary, all fertile. 



1. Stamens twice the number of the petals and sepals. 



I. SAXI'FRAGA (from saxum, a stone, and frango, to 

 break ; supposed medical virtues in that disease). Lin. gen. 764. 

 Juss. gen. p. 309. Lam. ill. t. 372. Gsertn. fruct. 1. p. 177. t. 

 36. D. Don, in Lin. trans. 13. p. 341. Sternb. enum. sax. et 

 suppl. 1. Moretti, tent. sax. Gaudin, fl. helv. 3. p. 83. D. C. 

 prod. 4. p. 17. 



LIN. SYST. Decandria, Digynia. Calyx 5-cleft (f. 41. a. f. 

 42. a. f. 46. a.). Petals 5 (f. 42. b. f. 46. c.), entire, unguicu- 

 late. Stamens 10 (f. 42. c. f. 46. d.) ; anthers 2-celled. Styles 

 2 (f. 42. e.), permanent. Capsule (f. 42. d.) 2-celled, 2-valved, 



2-beaked, opening within the beak by an orbicular hole, many 

 seeded. Seeds minute, smooth. 



SECT. I. BERGE'NIA (in honour of Charles Aug. Bergen, 

 author of Flora Francofurtana, in one vol. 8vo. 1750, and other 

 botanical works). Moench, meth. 664. ex D. Don, in Lin. trans, 

 13. p. 343. Geryonia, Schrank, Tauch, and Sternb. Erophe- 

 ron, Tauch, hort. canal, fasc. 1. Megasea, Haw. enum. sax. 6. 

 Calyx campanulate, 5-parted, wrinkled on the outside ; segments 

 conniving. Petals unguiculated, inserted in the calyx. Stamens 

 inserted in the throat of the calyx ; filaments subulate ; anthers 

 roundish. Styles hollow inside, full of seeds, joined at the base, 

 at length turgid, and changing into a profoundly bipartite cap- 

 sule ; stigmas semiglobose, glabrous ; seeds cylindrical. Peren- 

 nial herbs, with thick woody roots. Leaves large, fleshy. Pe- 

 tioles furnished by entire membranous stipulas along both sides 

 at the base. Flowers red, disposed in thyrsoid panicles. 



1 S. CRASSIFOLIA (Lin. spec. 573.) leaves oval or obovate, 

 very blunt, glabrous, serrulated ; petals elliptic-oblong. tj . H. 

 Native of Siberia, on the Alps. Curt. bot. mag. 196. Gmel. fl. 

 sib. 4. p. 166. t. 56. Megasea crassifolia, Haw. enum. sax. 

 p. 6. Flowers large, red. The root is stiptic or astringent 

 when chewed. 



Far. /3, Hantorthiana (Ser. in D. C. prod. 4. p. 36.) leaves 

 somewhat orbicularly cordate, flat, hardly crenated. 7. H. 

 Native of Siberia. Megasea media, Haw. enum. sax. 7. 



Thick-leaved Saxifraga. Fl. March, May. Clt. 1765. PI. 1 ft. 



2 S. CORDIFOLIA (Haw. misc. nat. 157.) leaves orbicularly 

 cordate, serrated, glabrous ; petals roundish. If. . H. Native 

 of Siberia, on the Alps. Meg&sea cordifolia, Haw. enum. sax. 

 7. Flowers large, red. 



Heart-leaved Saxifraga. Fl. March, May. Clt. 1779. PI. 1 ft. 



3 S. LIGULA'TA (Wall, in asiat. res. 13. p. 398. with a figure) 

 leaves obovate, subcordate, denticulated, quite glabrous on both 

 surfaces, but ciliated on the margins ; panicle dichotomous ; 

 petals broad, orbicular. I/ . F. Native of Nipaul, and the 

 east of Bengal, on the alps. Lodd. bot. cab. 747. Sweet, fl. 

 gard. t. 59. S. Pacumbis, Buch. mss. Meg&sea ciliata, Haw. 

 enum. sax. 7. Flowers very pale red, almost white. 



Var. ft, minor (Wall, mss.) leaves much smaller ; flowers 

 more loose, and distant. 



Ligulate-leaved Saxifrage. Fl. Mar. May. Clt. 1821. PI. 1 ft. 



SECT. II. GYNO'PERA (from yvvri, gyne, a style, in botanical 

 language, and irtpa, pera, beyond ; in reference to the styles 

 being above the stamens). Diptera, Borkh. ex Tausch, 1. c. Au- 

 laxis, Haw. syn. sax. p. 46. Hydatica, Tausch, hort. can. Neck, 

 elem. 2. p. 387. Robertsonia, Haw. syn. succ. p. 311. enum. 

 sax. p. 52. Calyx 5-leaved, reflexed. Petals hypogynous, 

 sessile. Stamens hypogynous ; filaments clavate ; anthers kid- 

 ney-shaped. Styles conniving ; stigmas simple, beardless. Cap- 

 sule roundish, naked. Seeds spherical. Perennial tufted herbs, 

 furnished with short surculi. Leaves fleshy, undivided, for the 

 most part cartilaginously serrated. Scapes erect, branched. 

 Flowers small, panicled, rose-coloured or white, dotted. 



4 S. GE'UM (Lin. spec. 574.) leaves reniform, crenated, pilose 

 on both surfaces, adult ones crowded and spreading ; petioles 

 very long, nearly terete, villous ; calycine segments ovate, ob- 

 tuse. I/ . H. Native of Siberia, Switzerland : and the hills in 

 Ireland, especially on a mountain, near Dingle, in the county of 

 Kerry. Sternb. rev. sax. p. 15. Lapeyr. fl. pyr. t. 24. Smith, 

 engl. bot. 1561. S. punctata, Sternb. sax. p. 18. S. umbrosa 

 punctata, Smith, engl. fl. 1. p. 263. Sax. hirsuta /3, geum, 

 Arnott et Ser. in D. C. prod. 4. p. 42. Robertsonia geum, 

 Haw. enum. sax. p. 53. Gmel. sib. 3. p. 161. t. 65. f. 1. 



