Oxytropis ambigua, (Pallas) DC. Oxytropis halleri, Bunge ex Koch Oxytropis halleri subsp. velutina, (Sieber) O. Schwarz

17. O. ambigua (Pallas) DC. View in CoL , Astrag. 70 (1802).

Acaulescent. Leaflets 12-16 pairs, oblong-ovate to lanceolate, appressed-hairy on both surfaces; stipules many-veined, adnate to petiole in lower part. Scapes 15-30 cm; racemes ovoid, with many flowers. Corolla purple; standard 17-21 mm, the limb obovate, bluntly 2-lobed; limb of wings orbicular. Legume 15-20 x 5 mm, oblongovoid, with appressed black and white hairs. S.E. Russia. Rs (E). (A. Asia.)

18. O. halleri Bunge ex Koch View in CoL , Syn. FI. Germ. ed. 2, 200 (1843)

( O. sericea (DC.) Simonkai , non Nutt., Astragalus sericeus Lam. pro parte).

Acaulescent, appressed- to patent-hairy. Leaflets (8-) 10—14(—18) pairs, ovate-lanceolate to lanceolate; stipules free or somewhat connate, shortly adnate to petiole. Scapes 4-30 cm; racemes ovoid, elongating after flowering, with 5-15 flowers. Corolla blue to purple, rarely paler; standard 15-20 mm; tooth of keel 1- 1 -5 mm. Legume 15-20 x 5-6 mm, ovoid to narrowly ellipsoid, with short, dense appressed hairs; ventral and dorsal septa equal in width, orthe ventral wider. • Pyrenees, AIps, Carpathians; Scotland; one station in E. Albania. Al Au Br Cz Ga He Hs It Po Rm.

(a) Subsp. halleri :

Scapes usually 1-2 mm in diameter; scapes and petioles with appressed or erecto-patent hairs, sometimes only sparsely hairy. Corolla bluish-purple. 2« = 32. Pyrenees, Alps, Carpathians; Scotland.

(b) Subsp. velutina (Sieber) O. Schwarz View in CoL , Mitt. Thür. Bot. Ges. 1: 107 (1949):

Scapes usually 2-3 mm in diameter; scapes and petioles villous with dense, patent hairs. Corolla pale purplish. 2zz = 16. C. Alps.

Plants from E. Albania (Korab), with the stipules 1 - or 2-veined and the legume with an extremely narrow dorsal septum, have been described as O. sericea subsp. korabensis Kümmerle & Jâv. , Bot. Közl. 19: 24 (1920). Further investigation is required as these plants may not be correctly placed in this species.