Leguminosae 



575 



minute, appressed hairs. Hokkaido (lowlands and high 



mountains), Honshu (high mountains of the centr. distr.); 

 rare. 



9. Astragalus secundus DC. Phaca parvi flora Turcz.; 

 P. jrigida var. parvi flora (Turcz.) Ledeb.; A. frigid us subsp. 

 pan/ifloriis (Turcz.) Hult. Rishiri-ogi. Slightly white- 

 pubescent perennial; stems 20-30 cm. long, erect, simple; 

 leaves 6-10 cm. long, on petioles to 2 cm. long, the stipules 

 10-20 mm. long, obtuse, membranous, green, the leaflets 



rather thin, 7-11, oblong to narrowly ovate, obtuse, 2-3 cm. 

 long, 1-1.5 cm. wide, obtuse, glabrous on upper side; ra- 

 cemes densely 5- to lO-flowered, 1-2 cm. long, on peduncles 

 5-10 cm. long; flowers about 15 mm. long, pale yellow; calyx 

 about 7 mm. long, tubulose, brownish pubescent especially on 

 upper side, the teeth very short, triangular; legumes oblong, 



puberulent, slightly inflated. July-Aug. Grassy alpine 



slopes; Hokkaido, Honshu (centr. distr.); rare. Kuriles, 



Kamchatka, and e. Siberia. 



40. OXYTROPIS DC. Oyama-no-end6 Zoku 



Dwarf shrubs or small tufted usually acaulescent herbs; leaves odd-pinnate, the stipules adnate to the base of the petiole or 

 free, the stipels none; racemes elongate or sometimes umbellike, on an axillary, usually radical scape or peduncle; flowers reddish 

 purple, purple, or yellowish white, the bracts membranous, small or minute, the bracteoles absent; calyx tubulose, the teeth 

 rather equal; standard erect or spreading, the keel pointed at apex, longer or shorter than the wing; ovary sessile or stipitate, 



many-ovuled; legumes rather inflated, sometimes with an intruding suture. About 250 species, in temperate to frigid regions 



of the N. Hemisphere, especially abundant in Siberia, China, and centr. Asia. 



lA. Racemes 1- to 3-(4-)flowered; stipules rounded to obtuse at apex. 



2 A. Legumes distinctly stiped; leaflets loosely pubescent 1. 0. I{iidoana 



2B. Legumes nearly sessile. 



3A. Appressed white-pubescent 2. O. japonica 



3B. Ascending to spreading white-villous 3. 0. yezoensis 



IB. Racemes 5- to 15-flowered; stipules usually acuminate to acute at apex. 

 4A. Flowers purple, rarely white. 



5A. Appressed-pubescent; standard entire at apex 4. 0. megalantha 



5B. Ascending- to spreading-pubesccnt; standard more or less retuse at apex. 



6.K. Leaflets 1 1-17 5. 0. hidakamonlana 



6B. Leaflets 19-25 6. 0. shokanbetsiiensis 



46. Flowers pale yellow or slightly greenish 7.0. rishiriensis 



1. Oxj'tropis kudoana Miyabe & Tatew. Hidaka-genge. ing, differing in the ascending to spreading white-woolly 



Acaulescent with appressed white-pubescence on petioles and pubescence on leaves and peduncles. July-Aug. Sandy or 



lower part of peduncles; stipules softly scarious, rusty brown, gravelly alpine slopes; Hokkaido. 



1- or 2-nerved, elliptic, rounded at apex, glabrescent, ciliate, 4. Oxytropis megalantha H. Boiss. Rebun-s6. Tufted 



the leaflets 9-15, obtuse, about 1 cm. long, 2-3 mm. wide; perennial suffrutescent subshrub, with long dense ascending, 



peduncles blackish pubescent on upper part, 2-flowered, the white or grayish hairs; stems tufted, thick, short, ascending to 



bracts narrowly ovate; flowers bluish purple; calyx blackish short-creeping, from a stout often branched caudex; leaves 



pubescent, the teeth lanceolate, about 3 min. long, the mbe radical, 5-8 cm. long, the stipules 15-20 mm. long, pubescent 



about 6 mm. long; ovary with white hairs on the sides and on the outside, the leaflets 8 to 11 pairs, rather thick, nar- 



black hairs on the ventral margin; legumes about 3 cm. long, rowly ovate-oblong to broadly ovate-lanceolate, 2-3 cm. long, 



about 1 cm. across, with a short included stipe. July. 5-8 mm. wide, acute, with involute margins, less densely 



.\lpine regions; Hokkaido (Hidaka mountain range); rare. pubescent on upper side; peduncles or scapes about 20 cm. 



2. Oxytropis japonica Maxim. Oyam-a-no-endo. Short- long, erect, about 7-flowered; flowers bluish purple, about 20 

 creeping, branched, dwarf suffrutescent subshrub; stems about mm. long; calyx-tube about half as long as the corolla, with 



10 cm. long, densely covered at base with old marcescent long white silky pubescence outside. Hokkaido (Rebun 



leaves; leaves mostiy radical, petioled, 3-8 cm. long, the Isl.);rare. 



stipules about 5 mm. long, narrowly ovate, obtuse, loosely 5. Oxytropis hidakamontana Miyabe & Tatew. Hi- 



pubescent, 1-nerved, connate below on ventral margins, ad- daka-miyama-no-endo. Acaulescent, with spreading, long 



nate on the lower half to the base of the petiole, the leaflets white pubescence on the petioles and peduncles; stipules 



9-15, broadly lanceolate or narrowly ovate, 5-10 mm. long, 1-nerved, lanceolate, acuminate to very acute, pubescent on 



2-4 mm. wide, nearly acute, with slightly involute margins, the outside, the leaflets 11-17, oblong, 8-12 mm. long, 2-4 



appressed-pubescent on both sides; peduncles or scapes 1-5 mm. wide, acute to subobtuse, densely pubescent on upper 



cm. long, with dense ascending white hairs; flowers 1 or 2 (3), side, glabrescent beneath; racemes about 5-flowered, the bracts 



purple, 17-20 mm. long, the pedicels short, the bracts broadly linear; flowers bluish purple; calyx with white and blackish 



lanceolate, membranous, 2-3 mm. long; calyx 10-12 mm. long, hairs, the teetii lanceolate or linear-lanceolate, about 3 mm. 



the teeth 3-4 mm. long, linear; legumes broadly lanceolate, long, the tube about 12 mm. long; ovary subsessile, appressed 



3-3.5 cm. long, 7-10 mm. wide, beaked at apex, loosely white-pubescent. July. Hokkaido (Hidaka mountain 



brownish short-pubescent. July-Aug. Sandy or gravelly al- range) ; rare. 



pine slopes; Honshu (centr. distr.). 6. O.xytropis shokanbetsuensis Miyabe & Tatew. Ma- 



3. Oxytropis yezoensis Nakai. O. japonica var. sericea shike-cenge. Tufted, dwarf suffrutescent subshrub with scat- 

 Koidz. Ezo-oyama-no-end6. Closely allied to the preced- tered ascending white hairs; stems 10-15 cm. long, branched, 



