Leguminosae 557 



1. Pongamia pinnata (L.) Merr. P. glabra Vent.; Cytis- 20 cm. long, many-flowered, short-pilose; flowers 15-18 mm. 



us pinnatus L. Kuro-yona. Tree with glabrous long, pedicelied; legumes glabrous, 5-6 cm. long, about 2.5 



branches; leaves 15-30 cm. long, the leaflets 5-7, opposite, cm. wide, rather thick. Near seashores; Kyushu (Yaku- 



ovate or broadly so, 5-10 cm. long, 4-8 cm. wide, abruptly shima); rare. Ryukyus, Formosa, and the Tropics of Asia 



acuminate with an obtuse tip, glabrous; racemes peduncled, to and Australia. 



12. EUCHRESTA A. Benn. Miyama-tobera Zoku 



Evergreen shrubs; leaves odd-pinnate, the leaflets 3-7, entire, exstipellate; flowers in terminal or axillary racemes, white, the 

 bracts minute, the bracteoles absent; calyx broadly campanulate with depressed teeth; anthers versatile; legumes fleshy, stiped, 

 ellipsoidal, lustrous, indehiscent, 1- to few-seeded. Few species in se. Asia. 



1. Euchresta japonica Benth. Miyama-tobera. Fig. 9. rather many-flowered, short-pilose, the bracts minute; flowers 



Small evergreen, erect or decumbent shrub 30-80 cm. high, 10-13 mm. long; calyx 2.5-3 mm. long, with undulate teeth; 



nearly simple or sometimes sparsely branched, with thick legumes ellipsoidal, 18-20 mm. long inclusive of the 2-3 mm. 



branches, short-pilose; leaves petioled, the leaflets 3, elliptic or long stipe, about 10 mm. wide, dark bluish purple. July. 



obovate, 5-8 cm. long, 3-5 cm. wide, obtuse, glabrous, deep Woods in mountains; Honshu (Kanto Distr. and westw.), 



green and lustrous above, grayish short-pilose beneath, the Shikoku, Kyushu; rare. 

 lateral nerves not prominent; racemes terminal, peduncled, 



13. ZORNIA Gmel. Sunaji-mame Zoku 



Herbs, sometimes suflrutescent; leaves palmately 2- or 4-foliolate, often with pellucid dots, exstipellate, the stipules linear, 

 sometimes foliaceous or peltate; flowers sessile, solitary or in few-flowered racemes, in 2's between a pair of broad, peltate, flat, 

 bracts, witliout bracteoles; calyx usually thin, 2-fid, the upper lobes 2-tootlied, the lower 3-lobed; petals small; anthers of two 



forms, the larger basifixed and alternate widi the smaller versatile ones; legumes flat, the joints smooth or spinulose. More 



than a dozen species in America, one or two in Asia and Africa. 



1. Zornia cantoniensis Mohlenbrock. Z. diphylla (L.) narrowly ovate; flowers yellow, 8-10 mm. long; legumes ellip- 



Pers.; Hedysarum diphylltim L.; Z. angustijolia J. E. Smith tic, 3^ mm. long, puberulous, spinulose on both faces, joints 



Sunaji-mame. Slender but firm, tufted perennial herb flat. June-Aug. Near seashores; Shikoku (Tosa Prov.); 



20-50 cm. high; leaflets 2, lanceolate, 1.5-2 cm. long, 2-3 mm. rare. A variable species widely distributed in die Tropics 



wide, sparsely pubescent with ventrally attached hairs; bracts of both hemispheres. 



14. LESPEDEZA Michx. Hagi Zoku 



Perennial herbs or shrubs, usually pilose; leaves pinnately 3-foliolate, the leaflets entire, exstipellate, the stipules free, usually 

 subulate, often deciduous; flowers purple or yellowish, in axillary racemes, often cleistogamous, the bracts small, the bracteoles 



2; calyx-teeth equal or unequal, the upper 2 often connate; legumes ovate to orbiculate, flat, indehiscent, 1-seeded. About 60 



species, in the temperate regions of N. America and e. Asia. 



lA. Flowers all alike, chasmogamic, rather large, 12-20 mm. long, rose-purple, rarely white; keel incurved at apex; legumes short- 

 stiped within the calyx. 

 2A. Winter-buds flattened, the scales distichous; horizontally spreading shrubs much branched in upper part; racemes sessile or sub- 

 sessile. 



3A. Calyx-teeth ovate or broadly so, acute to subacute, not spine-pointed \. L. biiergeri 



3B. Calyx-teeth gradually acuminate and spine-tipped 2. L. maximowiczii 



2B. Winter-buds terete, the scales spirally arranged; erect or arching shrubs often with ascending branches; racemes, when elongate, dis- 

 tinctly peduncled. 



4.\. Calyx-teeth spine-tipped; racemes short, sessile, usually not longer than the leaves 3. L. cyrtobotrya 



4B. Calyx-teeth rounded to acuminate, not spine-tipped; racemes sometimes elongate. 



5A. Calyx-teeth rounded to acute, often obsoletely 3-nervcd, usually not longer than the tube. 



6A. Leaflets membranous to herbaceous, at least when young with appressed to ascending hairs 0.3-0.7 mm. long; calyx-teeth 



oblong to lanceolate, obtuse to acute, often with darker nerves 4. i.. hicolor 



6B. Leaflets somewhat thicker, with sparse appressed short hairs about 0.2 mm. long; calyx-teeth usually obtuse to rounded, 



the nerves of the same color, indistinct 5. L. homoloba 



5B. Calyx-teeth acute to acuminate, 1 -nerved, the lowest longer than the tube 6. /-. thunbergii 



IB. Flowers of two forms, the chasmogamic usually less than 12 mm. long, with tlie keel erect or scarcely incurved at apex, the 

 cleistogamic apetalous or nearly so; legumes sessile or nearly so. 

 7A. Racemes of chasmogamic flowers peduncled, usually longer than the leaves. 



8.*L. Densely pubescent with yellowish brown soft hairs; leaflets 3-4 cm. long, 12-20 mm. wide 1 . L. tomentosa 



8B. Glabresccnt or loosely white-pubescent; leaflets 1-2.5 cm. long, 5-10 mm. wide. 



9A. Peduncles capillary, 3- to 5-flowercd, glabresccnt, spreading; calyx of chasmogamic flowers 4-5 mm. long 8. i.. virgata 



9B. Peduncles thicker, 5- to 15-flowered, appressed-pilosc, ascending; calyx of chasmogamic flowers 5-6 mm. long. 



9. L. davurica 

 7B. Racemes of chasmogamic flowers sessile or nearly so, shorter than the leaves. 

 IDA. Leaflets oblanceolatc, linear, rarely obovate. 



