Pterostyrax STYRACACEAE-OLEACEAE Fovtanesia 



and densely pubescent drupe. 5 species, in eastern Asia, all occurring in China. (Greek: 

 pteron, wing; and styrax, referring to the winged fruit.) 



1. Pterostyrax corymbosa Sieb. & Zucc. /J\||g^f#] (Hsiao Yeh Pai Hsing Shu; 

 Small-leaved White-bitter Tree) (R.M. 765). Tree, to 15 m.; fls. white, V; fr. 

 fluted, IX. Japan, China; locally in An., Che., Ki., Ku., Hun. Forest. 



4. Melliodendron Hand.-Mazz. *f/KM (Me Mu Shu) 



Deciduous tree with alternate simple finely serrate lvs. : fls. pedicellate, one or 

 two from a single axillary bud, appearing before the lvs.; stamens 10, in a single 

 series, joined at the base into a short tube, shorter than the corolla; ovary 2/3 inferior: 

 fr. woody, one-seeded, obovoid, pubescent when young; faintly ribbed, but not fluted, 

 obtuse and apiculate, about 5 cm. long. One species, in southern and central China. 

 (Named for Rudolf Mell, an Austrian middle school director who collected the type 

 material in Kwantung Province in 1917.) 



1. Melliodendron xylocarpum Hand.-Mazz. (I.P.S. 4: 47). Tree, to 20 m.; fls. white, 

 IV; fr. IX-X. Southern and central China; locally in Hun., Ki. Along streams. 



5. Sinojackia Hu ffUffiM (Ch'eng Chui Shu Shu) 



Small deciduous trees with white 5- (6-7-) merous fls. in axillary cymes; calyx 

 teeth deciduous; stamens 10 (or 12-24), inserted on the base of the corolla; ovary in- 

 ferior, 3-4-celled: fr. a woody indehiscent glabrous oblong one-seeded drupe, irregu- 

 larly transversely fissured, but not ribbed or fluted. 2 species, in China. (After J. G. 

 Jack of the Arnold Arboretum; the prefix in reference to his connection with Chinese 

 botany.) 



Key to the Species 



Fr. cylindric-oblong, 2.5 cm. long 1 . 5. rehderianae 



Fr. ovoid, about 2 cm. long, with conical apex 2. S. xylocarpa 



1. Sinojackia rehderiana Hu (R.M. 764). Tree, to 5 m.; fls. white, IV; fr. IX-X. 



Central China; locally in Ki. Woodland. 



2. Sinojackia xylocarpa Hu f-fHitf (Ch'eng Chui Shu; Steelyard-weight Tree) (R.M. 

 764). Tree, to 7 m.; fls. white, IV; fr. VIII-IX. East-central China; locally in 

 Ku. Woodland. Fig. 292. 



142. OLEACEAE Olive Family t-UH (Mu Hsi K'o) 



Trees or shrubs with usually opposite lvs. and regular mostly perfect 4-merous fls. ; 

 calyx or corolla or both sometimes wanting; stamens 2 (rarely 3-5), on the corolla and 

 alternate with its lobes; ovary 2-celled, with usually 2 ovules in each cell: fr. a drupe, 

 berry, capsule or samara. 22 genera with 500 species, in temperate and tropical 

 regions; 10 genera and 115 species in China. 



Key to the Genera 



A. Fr. a samara, conspicuously winged. 



Fr. ellipsoid, winged all around: lvs. simple 1. Fontanesia 



Fr. elongated, often linear, winged mostly from the tip: lvs. pinnately 



compound 2. Fraxinus 



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