556 



Leguminosae 



1. Maackia tashiroi (Yatabe) Makino. Cladrastis tashi- 

 roi Yatabe Shima-enju. Deciduous shrub with spread- 

 ing branches; branchlets slightly pubescent; leaves petioled, 

 15-20 cm. long, the leaflets 11-15, somewhat coriaceous, ob- 

 long or elliptic, 2-4 cm. long, subacute at both ends, short 

 appressed-pubescent beneath or on both surfaces, glaucescent 

 beneath; inflorescence of 1-4 racemes, 5-12 cm. long, rather 

 densely many-flowered, densely brown-puberulent, the bracts 

 lanceolate, small; flowers short-pedicelled, pale yellow; calyx 

 yellowish brown villous, the teeth deltoid, short; legumes 

 loosely short-pubescent, 10-12 mm. wide, 1- to 3-seeded, with 



a narrow wing on the outer suture. July-Aug. Wet places 



near seashores; Kyushu. Ryukyus and Formosa. 



2. Maackia amurensis Rupr. & Maxim, var. buergeri 

 (Maxim.) C. K. Schn. Cladrastis amurensis var. buergeri 

 Maxim.; C. amurensis var. ftoribunda Maxim, ex Fr. & Sav.; 

 C. amurensis var. vidalii Fr. & Sav.; M. buergeri (Maxim.) 

 Tatew. Inu-enju. Small deciduous tree; leaves petioled, 



20-30 cm. long, the leaflets 7-11, ovate, 4-7 cm. long, acute to 

 subobtuse, appressed-pubescent beneath; inflorescence of 3-7 

 racemes arranged in a panicle, densely many-flowered, yel- 

 lowish or grayish brown villous, the bracts linear, small; 

 flowers pedicelled, 10-12 mm. long; calyx 5-6 mm. long, 

 villous; legumes broadly linear, flat, 6-9 cm. long, 8-10 mm. 

 wide, appressed-pubescent while young, 3- to 6-seeded, with a 



narrow wing on the outer suture. July-Sept. Hokkaido, 



Honshu. A variable widespread species occurring in China, 



Formosa, Manchuria, Amur, Ussuri, and Korea. 

 Var. pubescens (Koidz.) Ohwi. M. ftoribunda Takeda; 



M. ■fioribunda var. pubescens Koidz. Hanemi-no-inu-enju. 



Leaflets usually 9-13, rather small, narrowly ovate to oblong, 

 3-5 cm. long; flowers 7-10 mm. long; legumes 4-8 cm. long, 

 8-12 mm. wide, appressed-pubescent, the wing on the suture 

 slightly broader, 1-1.5 mm. wide. Honshu, Shikoku, Kyu- 

 shu. 



9. CLADRASTIS Raf. Fujiki Zoku 



Trees with buds covered by the base of the petioles; leaves odd-pinnate, leaflets alternate on the rachis, exstipellate; flowers 

 white, in terminal panicles, the bracts and bracteoles obsolete or absent; calyx-teeth short, broad; legumes linear, flat, thin, 

 short-stiped, wingless or winged on the margins. Few species, in e. Asia and N. America. 



lA. Leaflets with 8 to 13 pairs of lateral nerves, pale green and with raised veinlets beneath; legumes winged on both margins; winter- 

 buds enveloped with a grayish white thin membrane 1. C. platycarpa 



IB. Leaflets with 13 to 15 pairs o£ lateral nerves, glaucous and without raised veinlets beneath; legumes wingless; winter-buds naked. 



2. C. sil^o\iana 



1. Cladrastis platycarpa (Maxim.) Makino. Sophora 

 platycarpa Maxim.; Platyosprion platycarpum (Maxim.) 



Maxim. Fujiki. Deciduous tree; leaves 20-30 cm. long, 



the petioles short, slightly short-pubescent, the leaflets 8-13, 

 ovate-oblong, 5-10 cm. long, 2-4 cm. wide, acute to acuminate, 

 slightly dilated on the upper margin at base, puberulous on 

 the midrib above, slightly appressed-pubescent beneath; pani- 

 cles 15-25 cm. long, the separate branches in racemes; flowers 

 about 15 mm. long, the pedicels and calyx appressed brown- 

 pubescent, the bracteoles minute on the middle portion of the 

 pedicel; calyx 4-5 mm. long, with depressed semirounded 

 teeth; legumes much compressed, short-stiped, broadly linear. 



7-8 cm. long, 15-17 mm. wide inclusive of the narrow wings, 

 2- to 3-seeded, glabrous or nearly so. June-July. Moun- 

 tains; Honshu (centr. distr. and westw.), Shikoku. 



2. Cladrastis sikokiana (Makino) Makino. Sophora 

 si\o\iana Makino Yuku-no-ki, Miyama-fujiki. Re- 



sembles the preceding but brownish woolly-pubescent while 

 young; leaves slightly thinner, glaucous beneath, the lateral 

 nerves regularly arranged; flowers 15-18 mm. long, white, in 

 terminal panicles; calyx 5-6 mm. long, short-pubescent; 

 legumes nearly wingless, slightly thickened on the margins. 



June-Aug. Honshu (Kanto Distr. and westw.), Shikoku, 



Kyushu; rare. 



10. THERMOPSIS R. Br. 



Sendai-hagi Zoku 



Erect perennial herbs with creeping rhizomes; stipules prominent, free, leaf like, the lower ones sheathlike; leaves digitately 

 3-foliolate; flowers rather large, yellow, rarely purple, in terminal racemes, the bracts distinct, prominent, the bracteoles absent, 

 the pedicels solitary; calyx narrowly campanulate with short equal teeth; standard orbicular, the keel nearly as long as the 



wing; stamens free; legumes linear, flat, straight or sometimes arcuate, subsessile, rather many-seeded. ^About 20 species, in 



temperate or cooler regions of Siberia, n. India, e. Asia, and N. America. 



1. Thermopsis lupinoides (L.) Link. T. fabacea (Pall.) 



DC; Sophora fabacea Pall.; S. lupinoides L. Sendai-hagi. 



Stems erect, usually not branched, 40-80 cm. long, soft-pubes- 

 cent while young, soon glabrate; stipules ovate, 3-4 cm. long, 

 usually obtuse; leaflets ovate, obovate, or elliptic, equal, 5-7 

 cm. long, 3-5 cm. wide, obtuse, soft-pubescent while young; 

 racemes rather elongate, the bracts narrowly ovate, deciduous, 



longer than the pedicels; flowers 23-25 mm. long; calyx 10-12 

 mm. long, with narrowly ovate teeth about half as long as the 

 tube; legumes straight, flat, 8-10 cm. long, 6-7 mm. wide, 



pubescent while young, 12- to 15-seeded. May-Aug. Sand 



dunes near the sea; Hokkaido, Honshu, Shikoku, Kyushu; 



common northw. Korea, Ussuri, Sakhalin, Kuriles, regions 



around the Ochotsk Sea, and N. America. 



11. PONGAMIA Vent. Kuro-yona Zoku 



Trees, rarely shrubs; leaves petioled, odd-pinnate, the stipules caducous, the leaflets 3-7, opposite, coriaceous, exstipellate; in- 

 florescence an axillary raceme; flowers in 2's, 3's, or 4's, white, the bracts caducous, the bracteoles minute or absent; calyx 

 campanulate, nearly truncate with obsolete teeth; standard broad, minutely pilose externally; stamens monadelphous, the upper 

 filament free, short, the anthers versatile, oblong, slightly hairy at base; legumes elliptic, 1-seeded, slightly flattened, hard-fleshy, 

 indehiscent. ^A few species, in tropical Asia and AustraUa. 



