^HRYSosPLENiuM. DECANDRIA. D1GYN[A. 44i> 



296. CHRYSOSPLENIUM. L. 



Calyx superior, 4 — 5-cleft, coloured. Corolla 0. 

 Capsule 2-beaked, many-seeded. Geii. pi. 783. Nut f, 

 Gtfn. I. p. 254. Juss. p. 309. La 771. III. t. 374. 

 f. 2. Nat. Ord. Saxifrage^e Juss. Lateral 

 flowers octandrous. Golden Saxifrage. 



C. oppositifolium L. : leaves opposite, roundish-cordate. 

 IVilld. Spec. II. p. r,38. Smith Fl. Bnl. II. p. 448. 

 En^. Bot. {. 490. M i c h. Fl. I. p. 269. Pursh Fl.\. 

 f, 269. Elliott Sk. I. p. 511. 



Root perennial, creeping. Plant subaquauc and rather succu- 

 lent, brittle, yellowish-green. Stem dichotomously branching, 

 subquadrangular. Leaves on short petioles, orbicular, ob- 

 lique at the base, smooth and veinless, crenate-dentate. Flowers 

 sessile, all octandrous. Calyx 4-clefi ; green or slightly tinged 

 with purple ; segments orbicular, and very obtuse ; 2 oppo- 

 site ones narrower- Stamens very short ; filaments inserted 

 into the indentations of the receptacle ; anthers roundish, at 

 first orange red, but at length becoming brown. Germen in- 

 ferior ; styles 2, tapering, divaricate, about as long as the sta- 

 mens; stigma obtuse. Cafisule 2-horned, with the horns 

 spreading, 1 -celled, covered with the persistent calyx. Seeds 

 10 — 12, nearly orbicular, pubescent. 



Hab. About springs and in brooks in shady places. April — May. 

 Pursh thinks the North- American plant a distinct spe- 

 cies from the European ; but I have not been able to detect 

 any difference. Smith remarks, that in the latter the 

 i^-owers are frequently all 4-cleft and octandrous. 



297. TIARELLA. /.. 



Calyx 5-parted, persistent. Petals 5, inserted into 

 the calyx, unguiculate. Capsule 1-celled, 2-valved; 

 valves unequal Gen. pi. 765. Nu 1 1. Gen. I. p. 

 285. /«5J. p. 309. Lam. III. t. 373. i\ 2. Nat. 

 Ord. Saxifrage.^ Juss. 



T. cordifolia L. : leaves cordate, acutely lobed, dentate ; 

 teeth mucrouate ; scape racemed. Willd. Sptc. II. p. 

 659. Bot. Mag.\b^2. Lam. III. I c Mich.F/.Lp. 

 270. Pur s h Fl.l. p. 313. Mitella nudo scapo. G' r o n. 

 Firg, 160. 



Hoot perennial. Leaves all radical, about 2 inches and a half in 

 diameter, distinctly cordate, with scattered hairs above, pubes- 

 cent beneath ; petiole 3—4 inches long. Scafie 8—10 inches 



