324 ORDER LIX. SAXIFRAGACE.E. 



dehiscence. Seeds anatropous, numerous, and small. Embryo 

 straight. 



ANALYSIS. 



1. Stems herbaceous 2 



Stems woody 7 



2. Petals none Chrysoaplenium, 5 



Petals present 8 



8. Leaves compound AatUbe, 4 



Leaves simple 4 



4. Stamens 5 5 



Stamens 10 Saxifraga, 1 



5. Capsule 2— 3-celled Boykinia, 2 



Capsule 1-celled 6 



6. Styles 2 17euc7iera, 3 



Styles 3 Lepuropetalon, 6 



T. Climbing plants Decumaria, 9 



Shrubs or small trees 8 



8. Style 1 Itea, 7 



Styles 2 Hydrangea, 8 



6tyles 4 Philadelphus, 10 



Genus I.— SAXIF'RAGA. L. 10—2. 



(From saxttm, a stone, and frango, to break, from the supposed virtues of some o! 

 the species in curing the stone.) 



Sepals 5, more or less united. Carpels 2-beaked, 2-celled, 

 many-seeded, free or attached to the calyx, opening by a hole 

 between the beaks. 



1. S. leucanthemifo'lia, (Lap.) Stem with viscous hairs. Leaves 

 spatulate, oval, attenuate into a long marginal petiole, with acute and 

 large teeth. Mowers in a long, diffuse, much-branched panicle. Calyx 

 reflexed, persistent. Petals unequal. — White, variegated with pink and 

 yellow. U- June — Sept. Upper districts of Car. and Geo. 10 — 2u iu. 



2. S. Virginien'sis, (Mich.) Stem pubescent. Leaves oblong, ovcte, 

 or spatulate, obovate, attenuate into a broad petiole. F/owers in 

 dense, cymose clusters. Calyx with erect segments, obtuse. Peta»i 

 oblong, obtuse. Carpels united by the base to the calyx. — WLitt, 

 tinged with purple. 2£. Mountains. 4 — 12 inches. 



Genus II— BOYKIN'IA. Kutt. 5—2. 

 (In honor of Dr Boykin, of Georgia.) 



Calyx turbinate or urceolate, cohering to the ovary, 5-cleft; 

 segments acute, triangular. Petals 5, entire. Stamens 5. 

 Styles 2 — 3, short. Capsule 2 — 3-celled, with central pla- 

 centae, many-seeded, 2-beaked, dehiscent by pores between the 

 beaks. Perennial plants, with alternate, lobed, and palmately 

 round leaves. .Flowers in corymbose cymes, small. 



1. B. aoonitifo'lia, (Nutt.) Stem glandular. Leaves 6— 7-lobed, 

 glabrous ; cyme fastigiate, viscid. Flowers secund ; teeth of the calys 

 broadly triangular, 3-nerved. — Petals longer than the calyx, obovate 

 sometimes wanting. — White. 2{. June — July. Mountain^ 



