574 



Leguminosae 



1. Astragalus sinicus L. A. lotoides Lam.; Hedysarum 



japonicum Basiner Genge, Renge-s6. Biennial, soft, 



slightly pubescent herb; stems slender, ascending from a pro- 

 cumbent, branched base, 10-25 cm. long; leaves with petioles 

 2-5 cm. long, tiie stipules free, ovate, 3-6 mm. long, acute, 

 the leaflets 9-11, thinly membranous, obovate to elliptic, 8-15 

 mm. long, rounded to emarginate; racemes umbellike, the 

 peduncles 10-20 cm. long; flowers 7-10, about 12 mm. long, 

 reddish purple, rarely white, the pedicels 1-2 mm. long; 

 calyx about 4 mm. long, loosely white-pubescent, the teeth 

 lanceolate, shorter than the tube; legumes erect or ascending 

 in one direction, subsessile, blackish, 2-2.5 cm. long, about 4 



mm. wide, glabrous, gradually beaked. Apr.-June. Very 



commonly cultivated for green manure in rice-fields, occa- 

 sionally naturalized in our area. Formosa and China. 



2. Astragalus adsurgens Pall. A. jujisanensis Miyabe 

 & Tatew.; A. laxmannii subsp. jujisanensis (Miyabe & Tatew.) 



Kitag. ^MuRAsAKi-MOMENZORU. Stems ascending from a 



procumbent base, 10-30 cm. long, tufted, the caudex thick- 

 ened; leaves 5-15 cm. long, short-petioled, die stipules 

 broadly lanceolate, acute, connate on lower half on dorsal 

 margins, the leaflets 17-21, oblong to narrowly so, 7-20 mm. 

 long, 3-8 mm. wide, subobtuse at apex, slightly glaucescent, 

 glabrous on upper side, loosely appressed-pilose beneath; 

 racemes on somewhat longer peduncles, short-cylindric, 3-6 

 cm. long, densely many-flowered; flowers ascending, purple, 

 rarely white, 12-15 mm. long, rather narrow; calyx 5-6 mm. 

 long, with appressed-white and black pubescence, the teeth 

 linear, about half as long as the tube; standard oblong, longer 

 than the wings and keel; legumes loosely white and black 

 appressed-puberulous, ascending, sessile, oblong, 3-angled, 2- 



locular, abruptly beaked. July-Aug. Gravelly or sandy 



slopes in mountains; Hokkaido (Mount Oohira in Shiri- 



beshi), Honshu (centr. distr. and northw.); rare. Korea, 



Manchuria, Mongolia, and e. Siberia. 



3. Astragalus yamamotoi Miyabe & Tatew. Kariba- 

 oGi. Stems rather stout, erect, thinly white-pubescent, 30- 

 50 cm. long; leaves 8-10 cm. long, short-petioled, the stipules 

 broadly lanceolate, free, obtuse, 6-10 mm. long, thinly mem- 

 branous, the leaflets 9-13, oblong to narrowly ovate, 2-A cm. 

 long, 7-15 mm. wide, slightly retuse, slightly paler beneath, 

 glabrescent; racemes 1.5-3 cm. long, 6- or 7-flowered, the bracts 

 membranous; calyx 7-8 mm. long, glabrescent, the teeth 

 elongate-triangular, 1-1.5 mm. long, slightly black-pubescent; 

 standard narrowly obovate, keel nearly as long as the oblong 

 wing, shorter than the standard; legumes ellipsoidal, gla- 

 brous, stipitate. July. Hokkaido (Mount Kariba in Shiri- 



beshi) ; rare. 



4. Astragalus japonicus H. Boiss. A. \urilensis Mat- 

 sum. ^Ezo-MOMENZURU, Chishima-momenzuru. Stems 



rather stout, erect, 25-30 cm. long, thinly puberulous or gla- 

 brescent; stipules lanceolate or linear-lanceolate, acute to sub- 

 obtuse, membranous, recurved above, pilose, the leaflets 7-15, 

 oblong or elliptic, 2-3 cm. long, 7-13 mm. wide, retuse to 

 rounded, glabrous above, pubescent beneath; racemes loosely 

 4- to 6-flowered, on peduncles about 10 cm. long, the bracts 

 puberulous, twice as long as the pedicel; calyx obliquely 

 campanulate, about 6 mm. long, white-pubescent, sparsely 

 mixed with black hairs, the teeth very short; corolla about 2 

 cm. long, the standard oblong, emarginate, longer than the 

 wing and the much shorter keel; legumes oblong, inflated. 



stipitate, glabrous, pendulous, shallowly grooved on the ventral 



side, about 2 cm. long.- July. Grassy slopes in rocky places; 



Hokkaido (Mount Shari and Shiretoko Peninsula) ; very rare. 

 Kuriles (Etorofu and Urupp). 



5. Astragalus reflexistipulus Miq. A. glycyphyllos var. 



reflexistipulus (Miq.) Makino Momenzuru. Slightly 



white-pubescent perennial with thick caudex; stems procum- 

 bent, elongate, ascending above, 30-50 cm. long; leaves 15-30 

 cm. long, the petioles 1-2 cm. long, the stipules free, broadly 

 lanceolate, 5-8 mm. long, the leaflets 13-19, thinly membra- 

 nous, oblong or ovate, 2-5 cm. long, 1-2.5 cm. wide, rounded 

 to obtuse, pale green and short appressed-pubescent beneath, 

 glabrous above; racemes 2-3 cm. long, 8- to 15-flowered on 

 peduncles 3-10 cm. long; flowers about 13 mm. long, the 

 bracts linear, 1-2 mm. long; calyx-teeth linear, the lower 

 nearly as long as the tube; standard narrowly ovate, longer 

 than the wings and keel; legumes subsessile, curved upward 

 and erect, puberulous, gradually attenuate at both ends, many- 

 seeded. June-Aug. Hokkaido, Honshu. 



6. Astragalus sikokianus Nakai. Naruto-ogi. Slightly 

 pubescent with whitish medifixed hairs; stems terete, elongate, 

 ascending above; leaves 20-25 cm. long, short-petioled, the 

 stipules free, membranous, lanceolate-triangular, acuminate, 

 8-10 mm. long, the leaflets membranous, oblong, 15-25 mm. 

 long, 7-10 mm. wide, rounded and retuse, nearly glabrous 

 above; racemes about 1 cm. long, densely 10- to 20-flowered, 

 on peduncles 2-4 cm. long, solitary in upper axils, the bracts 

 lanceolate, nearly as long as the calyx; calyx loosely white- 

 pubescent, the teeth 1/2-2/3 as long as the tube, linear; corolla 

 slender, yellowish white, about 13 mm. long, the keel rather 

 short; legumes somewhat coriaceous, minutely appressed- 

 pilose, abruptly acuminate, rounded and sessile at base, rather 

 coriaceous. Near seashores; Shikoku (Awa); rare. 



7. Astragalus shiroumensis Makino. A. ara\au/ensis 



Takeda Shirouma-ogi. Stems tufted, ascending from a 



stout caudex, 15-30 (-50) cm. long, with loose white and 

 blackish brown pubescence; leaves 4-6 cm. long, petioled, the 

 stipules nearly free, narrowly ovate, 3-5 mm. long, obtuse to 

 acute, tile leaflets 11-13, narrowly oblong, obtuse to rounded, 

 glabrous on upper side, thinly white-pilose and with dark 

 brown hairs on the midrib beneath; racemes rather densely 

 5- to 10 (-20) -flowered, on peduncles 5-8 cm. long, exceeding 

 the leaves; flowers short-pedicelled; calyx about 4 mm. long, 

 dark brown pubescent, the teeth short, triangular; legumes 

 minutely appressed-puberulous with dark brown hairs, some- 

 times glabrescent, subsessile, pendulous. July-Aug. Grassy 



and gravelly alpine slopes; central mountains of Honshu; very 

 rare. 



8. Astragalus shinanensis Ohwi. A. jrigidus sensu 

 auct. Japon., non A. Gray; A. membranaceous var. obtusus 



Makino Tai-tsuri-6gi. Stems tufted, erect from a stout 



caudex, 40-70 cm. long, sparsely branched, sparsely white- 

 pubescent; leaves short-petioled, the stipules broadly lanceo- 

 late to linear, 5-10 mm. long, free, the leaflets narrowly ovate 

 or oblong, 15-20 mm. long, 5-8 mm. wide, obtuse, glabrous 

 on upper side, pubescent beneath; racemes 1.5-2.5 cm. long, 

 densely 5- to 10-flowered, on peduncles 4-8 cm. long; flowers 

 yellowish white, about 20 mm. long; calyx tubulose, 8-10 mm. 

 long, brownish pubescent, the teeth short, triangular; legumes 

 semirounded, pendulous, inflated, 3-4 cm. long inclusive of 

 the stipe about 1 cm. long, about 15 mm. wide, with scattered 



