Myrica MYRICACEAE-JUGLANDACEAE Pterocarya 



(ours), up to 2 cm. in diam., somewhat resembling the strawberry in appearance. 

 About 35 species; 4 in China. (Greek: murike, the tamarisk or some other shrub.) 



1. Myrica rubra Sieb. & Zucc. Strawberry Tree t-ifS (Yang Mei; Poplar Plum) 

 (Lee 219). Tree, to 12m.; fls. IV; fr. red, edible, VII. Eastern Asia and 

 Malaya; locally in Che., Ki., Ku. Grown for its fruits. Fig. 46. 



38. JUGLANDACEAE Walnut Family WM^ (Hu T'ao K'o) 



Aromatic deciduous trees with alternate pinnately compound lvs.\ monoecious: 

 staminate fls. in usually drooping catkins; the pistillate solitary or in racemes, mostly 

 with a 3-5-lobed perianth or involucre: ovary inferior: fr. drupe-like or nut-like, with 

 a large lobed oily seed. 6 genera with about 40 species, in north temperate regions; 

 5 genera and 17 species in China. 



Key to the Genera 

 A. Fr. a winged nutlet. 



Frtg. catkin erect, cone-like: brs. with solid pith 1. Platycarya 



Frtg. catkin pendulous: brs. with chambered pith 2. Pterocarya 



AA. Fr. a drupe or nut, not winged. 



Brs. with chambered pith: fr. a large indehiscent drupe 3. Juglans 



Brs. with solid pith. 



Fr. a large nut in a woody dehiscent husk 4 . Carya 



Fr. a nutlet, growing several together in pendulous racemes, 



each in the axil of a conspicuous 3-lobed bract 5. Engelhardtia 



1. Platycarya Sieb. & Zucc. lbHr|sf|i| (Hua Hsiang Shu Shu) 



Brs. with small scaly buds and solid pith: both staminatc and pistillate fls. in 

 erect catkins, without perianth; pistillate catkin terminal and solitary, surrounded by 

 several staminate ones: fr. a winged nutlet, flattened, in the axils of stiff lanceolate 

 bracts which form a small cone. One species, in China. (Greek: platys, broad; and 

 karya, nut.) 



1. Platycarya strobilacea Sieb. & Zucc. Black Dye Tree it^Wl (Hua Hsiang Shu; 

 Yielding-fragrance Tree) (R.M.115). Tree, to 10m.; fls. white, V-VI; fr. IX; 

 young frs. yield a black dye. China; locally in An., Ki., Ku. Open woods. 

 Fig. 47. 



2. Pterocarya Kunth Wing-Nut U^W, (Feng Yang Shu) 



Brs. with stalked naked buds and chambered pith: both staminate and pistillate 

 fls. in pendulous catkins, with 1-4-lobed perianth: fr. a winged nutlet. 8 species, 

 Asiatic; 7 in China. (Greek: ptero, wing; and karya, nut.) 



Key to the Species 



Wing of fr. oblong: rachis of If. winged; lfts. 11-21 1. P. stenoptera 



Wing of fr. circular : rachis not winged; lfts. 7-9 2. P. paliurus 



1. Pterocarya stenoptera C. DC. Wing-Nut (US (Feng Yang; Maple Poplar) (R.M. 

 116). Tree, to 30 m.; fls. IV; fr. VII-IX. China; locally in An., Ki., Ku. Along 

 streams, and planted. Fig. 48. 



2. Pterocarya paliurus Batal. Green Cash Willow TVfllsl (Ch'ing Ch'ien Liu; 

 Green-Coin Willow) (R.M. 116). Tree, to 20m.; fls. V; fr. VIII. Central China; 

 locally in An., Ki. Open woods. 



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