Distylium HAMAMELIDACEAE-ROSACEAE Platamts 



superior: fr. a 2-celled capsule with one seed in each cell. 6 species, in Japan, 

 China and the Himalayas; 4 in China. (Greek: dis, two; and stylos, style, referring 

 to the two conspicuous styles.) 



1. Distylium myricoides Hemsl. (Lee 576). Evergreen tree, to 9.5 m.; fr. IX; 

 capsule grayish-pubescent. China; locally in An., Che. Woodland. 



6. Loropetalum R. Br. fltftM (Chi Hua Shu) 

 Evergreen shrubs with small entire lvs.: fls. in terminal fascicles; petals linear, 

 strap- shaped: capsules densely pubescent. Two species, in China. (Greek: loros, a 

 strap; and petalum, referring to the strap-shaped petals.) 



1. Loropetalum chinense (R.Br.) Oliv. MTt (Chi Hua) (B.M.491). Woody vine; fls. 

 white, IV. Central and southeastern China; locally in An., Che., Ki. Ku. 

 Brushland and woods. Fig. 149. 



79. PLATANACEAE Plane Tree Family ?£IH|^^# (Fa Kuo Wu T'ung K'o) 

 Deciduous monoecious trees with alternate palmately lobed lvs. and stellate 

 pubescence: buds at first covered by the base of the petiole: fls. small, in globular 

 heads; perianth very small: fr. a spherical syncarp composed of many 1-seeded 

 nutlets, each with long hairs at the base. One genus with 6-7 species, in North 

 America and Eurasia; 2-3 species cultivated in China. 



1. Platanus Linn. Sycamore -/£HffH^M (Fa Kuo Wu T'ung Shu; 



French Firmiana Genus) 



Characters of the family. (The Greek name for the tree, from platys, broad. 



1. x Platanus acerifolia Willd. (P. occidcntalisxorientalis) London Plane Tree 

 3SSW] (Ying Kuo Wu T'ung; English Firmiana) (R.M.321). Tree, to 40 m.; 

 fls. IV; frtg. heads usually two. Hybrid origin; locally in An., Ku. Cultivated, 

 ornamental. Fig. 150. 



80. ROSACEAE Rose Family ^WPc (Ch'iang Wei K'o) 



Plants with mostly alternate stipular lvs.: fls. usually perfect, regular and 

 perigynous or epigynous: the receptacle developing into a flat, urn-shaped or conical 

 hypanthium, usually lined with a glandular disc: sepals and petals 4-5; stamens 

 5-many; carpels 1-many, distinct or united with the receptacle: fr. a follicle, achene, 

 drupe, hip, or pome. About 100 genera with 2,000 species, widely distributed, 

 especially in the temperate parts of the world; about 30 genera and 200 species in 

 China. 



Key to the Genera 



A. Fls. perigynous. 



B. Hypanthium cup-shaped, without a central column. 



C. Fr. becoming capsules or follicles. I. Spiraeoideae. 



Fr. a capsule: fls. large, 2 cm. or more in diam 1. Exochorda 



Fr. follicular: fls. small. 



Stipules present : carpels one 2. Stephanandra 



Stipules wanting: carpels usually 5 3. Spiraea 



CC. Fr. a drupe. II. Prunoideae 4. Prunus 



lf). r ) 



