Leguminosae; Geraniaceae 



577 



1. Medicago sativa L. Murasaki-umagoyashi. Per- 

 ennial slightly pubescent herb; stems erect, branched, 50-90 

 cm. long; stipules linear, dilated at base, nearly entire; leaflets 

 elliptic to narrowly obovate, 2-3 cm. long, 6-10 mm. wide, 

 cuneate at base, denticulate; racemes short and dense, axillary, 

 peduncled, the bracts subulate; flowers violet; caly.x 5-6 mm. 

 long, the lobes linear, slightly longer than the tube; legumes 

 2- or 3-times coiled, 4-5 mm. across, slighdy pilose, several- 

 seeded. Of e. Mediterranean origin, naturalized in our 



area. 



2. Medicago lupulina L. Kometsubu-unhgoyashi. 

 Short-pubescent annual or biennial 30-60 cm. high, with a 

 branched procumbent base; stipules semiovate, somewhat 

 toothed, the leaflets broadly obovate, 7-17 mm. long, 6-15 

 mm. wide, denticulate on the upper half; heads ovoid, on 

 peduncles longer than the petioles, the bracteoles minute and 

 subulate, the pedicels very short; calyx 1.5 mm. long; legumes 

 semicircular, smooth, nerved, black when mature. Euro- 

 pean introduction, naturalized in our area. 



3. Medicago hispida Gaertn. M. denticulata WiUd. 

 Um.vgoyashi. Nearly glabrous annual, with procum- 

 bent stems; stipules laciniate, the leaflets broadly obovate, 1-2 

 cm. long, 7-15 mm. wide, retuse to rounded, cuneate at base, 

 denticulate on upper half; heads rather few-flowered, axillary, 

 the bracts minute, linear; calyx about 2 mm. long, the teeth 

 subulate, incurved; legumes 2- to 3-times spirally coiled, 5-6 



mm. across, nerved, with hooked spines on margins. 



Widely naturalized in our area. Europe and n. Africa. 



4. Medicago minima (L.) L. M. polymorpha var. 



minima L. Ko-umacoyashi. Pubescent annual 10-20 



cm. high, with firm, prostrate stems; stipules semiovate, en- 

 tire or slightly toothed; leaflets obovate-cuneate, 7-10 mm. 

 long, rounded at apex, denticulate on upper half; heads 2- to 

 5-flowered; calyx 2-2.5 mm. long; legumes 4- to 5-times 

 spirally coiled, about 4 mm. across, spiny on the nerves and on 



margins. Naturalized in our area. Europe, Near East, 



and n. Africa. 



43. MELILOTUS Juss. Shinagawa-hagi Zoku 



Annual or biennial herbs; leaves pinnately 3-foliolate, the stipules adnate to the petioles, subulate, the lateral nerves of the 

 leaflets ending in the teeth; flowers small, yellow to white, rarely purple, in axillary racemes, the bracts small, the bracteoles 

 absent; calyx-teeth nearly equal; petals deciduous, the standard usually longer than the keel and wings, the keel shorter than 



the wings, obtuse, not adnate to the stamens; stamens diadelphous; legumes short, ovate to nearly globose, few-seeded. 



About 20 species, in warmer and temperate regions of Eurasia. 



1. Melilotus suaveolens Ledeb. Shinagawa-hagi. 

 Short-pubescent or nearly glabrous annual or biennial; stems 

 erect, 50-90 cm. long, branched above; leaflets narrowly 

 elliptic to broadly lanceolate, 1.5-3 cm. long, obtuse at ape.x, 

 cuneate at base, toothed, glabrous; racemes axillary, 3-5 cm. 

 long, rather densely flowered, elongate after anthesis, the 

 peduncles 2—4 cm. long, the bracts linear-subulate, about 1 mm. 

 long, slightly longer than the pedicels; flowers pale yellow, 3-4 



mm. long; calyx thinly puberulent, 1.5 mm. long, teeth subu- 

 late; standard slightly longer than the wings and keel; legumes 

 elliptic, about 3 mm. long, nearly smooth.— — Waste ground 

 and fields in lowlands; Honshu, Shikoku, Kyushu; rather com- 

 mon. Korea, China, Indochina, and Siberia. 



Melilotus indica (L.) All. Ko-Shinacawa-hagi. Flowers 

 smaller, about 2 mm. long, with triangular-lanceolate calyx- 

 teeth. Naturalized in our area. 



A4.. CROTALARIA L. 



Tanuki-mame Zoku 



Herbs or shrubs; leaves simple or digitately 3-(-7) foliolate, stipules free; flowers purplish or yellow, in terminal racemes 

 or rarely solitary, rather large; calyx 5-lobed; standard large, the keel beaked; stamens monadelphous, the anthers of 2 forms, 



the larger basifixed ones alternate with the smaller versatile ones; legumes ellipsoidal, inflated, many-seeded. About 350 



species, in tropical and warmer regions. 



1. Crotalaria sessiliflora L. C. eriantha Sieb. & Zucc. 



Tanuki-mame. Erect annual, usually branched, long- 



appressed brown-villous except on upper side of leaves; stems 

 20-70 cm. long, terete; leaves 1-foliolate, nearly sessile, broadly 

 linear to lanceolate, 4-10 cm. long, 3-10 mm. wide, acute to 

 obtuse, the stipules linear, 3-5 mm. long; flowers blue, in 

 terminal spikes, the bracts linear, 5-8 mm. long; calyx rusty- 

 brown villous, accrescent after anthesis, ovoid, 10-15 mm. 

 long; petals about 10 mm. long, slightly shorter than the calyx. 



the standard rounded-obovate, clawed, the limb with deeper 

 colored striations on lower half near the middle, the wing 

 horizontal, the keel white with a blue beak, convex on back 

 below the middle, brownish villous on margin, 7-8 mm. long; 

 style straight, with short, appressed hairs on one side; legumes 

 enclosed in the calyx, oblong, 10-12 mm. long, glabrous, 



dehiscent. July-Sept. Grassy places in lowlands; Honshu, 



Shikoku, Kyushu. Korea, Manchuria, China, Ryukyus, 



Formosa to Malaysia, and India. 



Fam. 106. GERANIACEAE Furo-s6 Ka Geranium Family 



Mostly herbs, sometimes shrubs; leaves alternate or opposite, stipulate, dentate or lobed, rarely entire; peduncles axillary, 1- 

 to many-flowered; flowers rather large, bisexual, actinomorphic or more or less zygomorphic; calyx usually persistent, of 4 or 5 

 usually imbricate sepals; petals 4 or 5, usually imbricate; stamens 2 or 3 times as many as the sepals, the anthers versatile, 2-locular; 

 carpels adnate to the axis, with a long beak at apex; ovules solitary or sometimes 2 in each locule, pendulous; fruit 3- to 5-lobed, 

 each lobe with 1 or 2 seeds, dehiscing suddenly and spirally coiled. About 1 1 genera, with about 650 species, chiefly in tem- 

 perate regions. 



