Albizzia LEGUMINOSAE Gleditsia 



I. Mimosoideae Mimosa Subfamily 'SWM-Pt (Ho Huan Ya K'o) 

 Trees and shrubs, occasionally herbs, with bipinnate lvs.: lfts. oblique: fls. small, 

 regular, and borne in dense heads or spikes; petals valvate: fr. usually stalked. 



1. Albizzia Durazz. Mimosa ^WM> (Ho Huan Shu) 

 Trees and shrubs with bipinnate lvs.: fls. small, 5-parted, in heads or spikes; 

 stamens numerous, united at the base: pods glabrous, non-septate, flat and thin. 25 

 or more species, mostly in the Old World tropics; 10 in China. (After F. degli 

 Albizzi, an Italian nobleman.) 



Key to the Species 

 Lfts. falcate, 6-10 mm. long, acute; midrib close to the upper margin .. 1. A. julibrissin 

 Lfts. oblong, 20-35 mm. long, obtuse; midrib not close to the upper 



margin 2. A . kalkora 



1. Albizzia julibrissin Durazz. £-|fc (Ho Huan; Happy Union) (R.M. 484). Tree, 

 5-15 m. high; fls. pink, VI-VII; fr. IX-XI; lfts. small, very many. Persia to 

 Central China; locally in An., Che., Ki., Ku. Planted, ornamental. 



2. Albizzia kalkora (Roxb.) Prain [1\ $1 (Shan Huai; Mountain Pagoda Tree) (R.M. 

 484). Tree, 5-10 m. high; fls. pink, V-VII; fr. IX-X; lfts. fewer. China to India; 

 locally in An., Che., Ki., Ku. Planted, ornamental. 



2. Mimosa Linn. H-H^H (Han Hsiu Ts'ao Shu) 



Herbs (ours), shrubs or trees, sometimes woody vines, often prickly: lvs. bipin- 

 nate, often sensitive: fls. small, mostly 4-parted, in dense heads or spikes; stamens 

 4-10, distinct: pods prickly, separating at maturity into 1-seeded joints. About 300 

 species, mostly of tropical America; 1 cultivated in China. (Greek: mimos, actor or 

 mimic, referring to the sensitive lvs. of some species.) 



1. Mimosa pudica Linn. Sensitive Plant ^%% (Han Hsiu Ts'ao; Bashful Plant) 

 (B.M. 589). Spreading shrub; fls. purplish, V-VI; fr. VII-IX; sensitive to touch. 

 Introduced from tropical America; locally in Ku. Cultivated, ornamental. Fig. 166. 



II. Caesalpinioideae Caesalpinia Subfamily %M&M (Tsao Chia Ya K'o) 

 Trees, shrubs, or rarely herbs: lvs. simple or pinnate: fls. nearly regular or ap- 

 pearing somewhat papilionaceous; petals imbricate, the upper one inside. 



3. Cercis Linn. Redbud %MM, (Tzu Ching Shu) 



Deciduous shrubs or trees with simple entire palmately nerved lvs.: fls. before or 

 with the lvs., somewhat papilionaceous; stamens 10, free; pod stalked, flat, narrowly 

 oblong, with several seeds. 9 species, in North America and Eurasia; 5 in China. 

 (Greek: Kerkis, the name of the plant.) 



1. Cercis chinensis Bunge %fcffl (Tzu Ching; Purple Thorn) (R.M. 485). Shrub, 2-3 

 m. high; fls. red, IV; fr. IX-X. Central China; locally in An., Che., Hon., Ku. 

 Planted, ornamental. Fig. 167. 



4. Gleditsia Linn. Honey Locust %M% (Tsao Chia Shu) 

 Large deciduous trees, the trunk and brs. usually bearing stout branched spines: 



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