Sedum CRASSULACEAE-SAXIFRAGACEAE Astilbe 



S. 2:94). Succulent herb, 1-2 dm. high; fls. yellow, VI, small, 6-8 mm. across. 

 China, Japan; locally in Ku. Rocky outcrops. 

 9. Sedum quaternatum Praeger (B.G. 1:26). Decumbent succulent herb; fls. yellow, 

 large, 10-12 mm. across, VI. China; locally in Ki., Ku. Stone walls. 



3. Penthorum Linn. Ditch Stonecrop £ii;$mft (Ch'e Ken Ts'ai Shu) 



Plants erect, not succulent: lvs. alternate: fls. greenish, in terminal 1-sided cymes: 

 calyx lobes 5; petals usually none; stamens 10; fr. a 5-horned 5-celled capsule. 3 

 species, in eastern Asia and eastern North America; one in China. (Greek: pente) 

 five; and horos, mark, referring to the 5-parted fl.) 



1. Penthorum sedoides Linn. i±UM (Ch'e Ken Ts'ai; Tough-rooted Vegetable, 

 (G.M. 736). Erect herb, 5-10 dm. high; fr. X, a 5-horned capsule. Eastern Asia, 

 eastern North America; locally in An., Ku. Ditch banks. Fig. 141. 



76. SAXIFRAGACEAE Saxifrage Family l^W (Hu Erh Ts'ao K'o) 



Herbs or shrubs: calyx 4-5-parted; petals sometimes wanting; stamens as many 

 or twice as many as the calyx lobes; carpels fewer than the calyx lobes, often 2: 

 fr. a capsule or follicle. 70-100 genera with 900-1,000 species, mostly of temperate 

 and tropical regions; 14 genera and 70 species in China. 



Key to the Genera 

 A. Herbs. 



B. Lvs. compound, 2-3-ternate 1. Astilbe 



BB. Lvs. simple. 



Plants not succulent. 



Fls. in panicles: lvs. crenate or cleft 2. Saocifraga 



Fls. borne singly on scapes: lvs. entire 3. Parnassia 



Plants succulent 4. Chrysosplenium 



AA. Shrubs or trees. 



C. Fls. of two kinds, the marginal sterile and enlarged, or all 



the fls. sterile and enlarged: fr. a capsule. 

 Lvs. opposite, pinnately veined. 



Sterile fls. with 3-4 sepals 5. Hydrangea 



Sterile fls. with one large stalked sepal 6. Schizophragma 



Lvs. alternate 7. Cardiandra 



CC. Fls. all of one kind. 

 D. Lvs. opposite. 



Evergreen shrubs: lvs. entire: petals falling off in a 



cap 8. Pileostegia 



Deciduous shrubs: lvs. serrate or dentate: petals 

 expanding. 



Stamens 2 x the petals: lvs. serrate 9. Deutzia 



Stamens numerous: lvs. dentate 10. Philadelphus 



DD. Lvs. alternate, palmately lobed: fr. a berry 11. Ribes 



1. Astilbe Buch.-Ham. False Goat's Beard 'i !«M (Shen Ma Shu) 



Strong perennial herbs with 2-3-tcrnatcly compound lvs.: fls. small, numerous, 

 polygamous, in dense terminal panicles: follicles dehiscent. About 14 species, in 

 eastern Asia and eastern North America; 8 in China. (From the Greek terms meaning 

 " without brightness.") 



148 



