Ribes SAXIFRAGACEAE-HAMAMELTDACEAE Corylopsis 



locally in An., Ku. Woodland. 

 2. Ribes tenue Jacq. (R.M.296). Shrub, to 2.5m.; fls. brownish red, IV. Western 

 and central China, Himalayas; locally in An. Woodland. 



77. PITTOSPORACEAE Pitchseed Family Mfif (Hai Tung K'o) 



Trees and shrubs, sometimes climbing, with alternate evergreen lvs.: fls. mostly 



regular; sepals, petals and stamens 5; ovary superior, of 2-5 carpels: fr. (in ours) a 



capsule. 9 genera with 150 species, mostly of Australia, but our genus distributed 

 over the eastern tropics; one genus and 10 species in China. 



1. Pittosporum Banks MW\M (Hai T'ung Shu) 



Erect trees or shrubs with glabrous leathery lvs.: petals more or less joined 

 together at the base: fr. a dehiscent capsule with resinous-s&'c&v-coated seeds. 100 

 species, in the Old World Tropics; 10 in China. (From the Greek terms meaning 

 "pitch" and "seed", referring to the resinous coating of the seeds.) 



Key to the Species 



Lvs. obovate to oblanceolate, slenderly pointed I. P. glabratum 



Lvs. rounded at the tip, tapering to a narrowly cuneate base 2. P. tobira 



1. Pittosporum glabratum Lindl. y JtWM^ (Kuang Yeh Hai T'ung; Smooth Pitto- 

 sporum) (Be.F.19). Shrub, 1-3 m. high; fls. V; fr. VIII-X; seeds with orange 

 aril. Eastern Asia; locally in An., Che., Ki. Woodland. 



2. Pittosporum tobira (Willd.) Ait. Japanese Pittosporum $$J|nj (Hai T'ung; Sea 

 Aleurites) (B.M.488). Bush, 1-4 m. high; fls. cream-white, fragrant, V; fr. X; 

 seeds with red aril. Japan, China; locally in An., Che., Ku. Cultivated, 

 ornamental. Fig. 146. 



78. HAMAMELIDACEAE Witch Hazel Family &WfePt (Chin Lii Mei K'o) 



Trees or shrubs with alternate simple lvs.: fls. in heads or racemes: fr. a woody 

 2-celled capsule: seeds with endosperm, one in each cell. 20 genera with 50 species, 

 in the subtropical parts of Asia, South Africa, and North America; 13 genera and 

 30 species in China. 



Key to the Genera 

 A. Deciduous trees and shrubs. 



B. Lvs. pinnately veined: fls. in racemes, or few, with petals. 



Lvs. with straight unbranched veins: petals broad 1. Corylopsis 



Lvs. with brg. veins: petals very small, sharp-pointed. 



Fls. in racemes, 5-merous 2. Fortunearia 



Fls. in clusters, 4-merous 3. Hamamelis 



BB. Lvs. palmately lobed: fls. many, in dense clusters, without 



petals 4 . Liquidambar 



AA. Evei green trees or shrubs. 



Petals wanting: erect tree or shrub 5. Distylium 



Petals strap-shaped: decumbent shrub 6. Loropetalum 



1. Corylopsis Sieb. & Zucc. Jm^M (Shui Mu Shu; Auspicious Wood Genus) 



Deciduous shrubs or small trees: lvs. pinnately veined, with straight unbranched 

 veins: fls. in drooping racemes, appearing before the lvs.; petals 5, broad; ovary 

 half-inferior: capsule broad, glabrous, bearing two shiny black seeds. 12 species, in 



ir.: 1 , 



