564 Leguminosae 



lA. Flowers solitary or fasciculate in leaf-axils, usually without peduncles; style bearded below the stigma on outer side; stipules (in 

 ours) with an obsolete depressed gland on the center. 

 2A. Annual herbs, rarely perennial; calyx-teeth elongate, nearly equal, almost as long as the tube. 



3A. Leaflets of upper leaves obovate or oblong; flowers about 2 cm. long; legumes 5-8 cm. long 1. V. sativa 



3B. Leaflets of upper leaves linear to oblong; flowers about 15 mm. long; legumes 3-5 cm. long 2. V. angustifolia 



2B. Perennial herb; calyx-teeth short, unequal, Yi-Yz as long as the tube 3. V. septum 



IB. Flowers in pedunculate racemes; styles short-pubescent all around; stipules not glandular. 

 4A. Racemes few-flowered ; flowers small, 3-5 mm. long. 



5A. Legumes glabrous, 3- to 6-seeded; racemes 1- to 3-flowered 4. V. tetrasperma 



5B. Legumes short-pilose, 2-seeded; racemes 3- to 7-flowered 5. V. hirsuta 



4B. Racemes many-flowered; flowers larger, 10-20 mm. long. 



6A. Tendrils well developed, elongate; scandent or prostrate herbs. 

 7A. Leaflets 12-28; scandent herbs. 



8A. Annuals; limb of the standard distinctly shorter than the claw. 



9A. Plant soft-pubescent; flowers 15-17 mm. long; calyx-teeth subulate, the lower ones longer than the tube 6. F. villosa 



9B. Plant loosely pubescent to glabrous, slender, but stiffer; flowers 10-15 mm. long; calyx-teeth shorter than the tube. 



7. V. dasycarpa var. glabrescens 

 8B. Perennials; limb of the standard as long as the claw. 



lOA. Plant dark reddish brown when dried; leaflets rather coriaceous, lanceolate to oblong, the lateral nerves forming an acute 



angle with the midrib; stipules firm and dentate 8. V. amoena 



lOB. Plant green or yellowish green when dried; leaflets membranous to chartaceous; stipules rather soft, entire or bifid. 



11 A. Leaflets oblong to elliptic, chartaceous, the lateral nerves forming an angle of more than 40 degrees with the midrib. 



12A. Leaflets soft-pubescent, pale green; calyx-teeth distinct, nearly deltoid 9. V. japonica 



12B. Leaflets nearly glabrous, yellowish green; calyx-teeth depressed 10. V. amurensis 



11 B. Leaflets lanceolate to broadly linear, membranous, the lateral nerves ascending, forming an acute angle with the midrib. 



1 1 . F. cracca 

 7B. Leaflets 4-10, fulvous-green when dried, chartaceous, with raised reticulate veinlets beneath; decumbent or prostrate perennial 



herb; tendrils absent in lower leaves 12. F. pseudo-orobus 



6B. Tendrils absent or nearly so; erect or ascending herbs. 

 13 A. Bracts not well developed or early deciduous. 



14A. Leaflets 2, acute to obtuse, sometimes gradually acute, rather thick 13. F. unijuga 



14B. Leaflets more than 2. 



15A. Leaflets 4-6, elliptic or oblong, broadest near the middle, rather thick; tendrils sometimes slightly developed. 



14. F. nipponica 

 15B. Leaflets 8-12, ovate to narrowly so or broadly lanceolate, broadest below the middle, thin; tendrils not well developed. 



15. F. venosa var. cuspidaia 

 13B. Bracts ovate to broadly lanceolate, persistent, 3-5 mm. long; leaflets thin, long-acuminate. 



16A. Leaflets 4-8 16. F. jauriei 



16B. Leaflets 2 17. F. bifolia 



1. Vicia sativa L. 0-yahazu-end6, Zadowikken. Simi- long, 2-5 mm. wide, rounded to truncate at apex, the lower 

 lar to the following, but stouter; climbing or trailing, sparsely ones usually obovate, 5-10 mm. long, retuse; flowers slightly 



pubescent annual or biennial to more than 1 m. high; leaflets smaller. More rare in our area than the var. segetalis. 



12-14, obovate to oblong, 10-20 mm. long, truncate to retuse Apr.-June. Grassy places and waste ground in lowlands; 



and mucronate at apex; flowers usually 2 cm. or more long; Honshu, Shikoku, Kyushu; common. The typical phase occurs 



calyx-teeth nearly equal; legumes 5-8 cm. long. Cultivated widely in temperate regions of the world. 



for green manure. w. Asia and Europe and widely culti- 3. Vicia sepium L. Karasu-no-endo. Scandent per- 



vated elsewhere. ennial herb, with slender stolons; stems 60-120 cm. long, 



2. Vicia angustifolia L. var. segetalis (Thuill.) C. slighriy pubescent; stipules dentate or bifid; leaflets 12-14, 

 Koch. V. segetalis Thuill.; V. sativa var. segetalis (Thuill.) membranous, narrowly ovate, 15-30 mm. long, 10-15 mm. 

 Ser.; V. angustifolia forma segetalis (Thuill.) Thuill. ex H. wide, obtuse to emarginate, indistinctly ciliate, the lateral 



Boiss.; V. sativa sensu auct. Japon., non L. Yahazu-endo. nerves ascending and forming a rather acute angle with the 



Scandent, slightly pubescent annual; stems 60-150 cm. long; midrib; flowers 1 or 2, 15-17 mm. long, violet-purple; calyx 



stipules bifid; leaflets 12-14, membranous, oblanceolate to 7-8 mm. long, slightly pubescent, the lower tooth slighdy 



broadly linear, 2-3 cm. long, 4-6 mm. wide, truncate to retuse elongate, lanceolate, 1/3-2/3 as long as the tube; legumes 3-4 



and mucronate at apex, the lateral nerves forming an acute cm. long, 8-9 mm. wide, glabrous. May-July. Naturalized 



angle with the midrib; flowers reddish purple, 12-18 mm. in Hokkaido and Honshu (Mount Ibuki in Oomi Prov.). 



long; calyx 8-12 mm. long, the teeth less than half as long as Europe. 



the tube, broadly linear, acuminate; legumes flat. Common 4. Vicia tetrasperma (L.) Schreb. Ervum tetraspermum 



throughout Japan. Forma normalis (Makino) Ohwi. L. Kasumagusa. Slender, slightly pubescent biennial; 



V. sativa var. normalis Makino Tsuru-nashi-yahazu-endo. stems 30-60 cm. long; leaves nearly sessile, the stipules semi- 

 Plant without tendrils. Rare in Japan. sagittate, the leaflets 8-12, thin, linear-oblong, 12-17 mm. long, 

 Var. minor (Bertol.) Ohwi. V. maculata var. minor Ber- 2-4 mm. wide; peduncles axillary, 2-3 cm. long, slender, the 

 tol.; V. angustifolia var. cor data Boiss.; V. angustifolia sensu bracts minute; flowers purple or bluish purple, about 5 mm. 



auct. Japon., non L. Hosoba-yahazu-endo. Of more slen- long; legumes oblong to ellipuc, glabrous, 8-10 mm. long, 



der habit; leaflets linear-lanceolate to nearly linear, 15-25 mm. about 4 mm. wide, 3- to 6-seeded. Apr.-May. Waste 



