PEA FAMILY 



2 9 



on a chalky or gravelly soil ; uncommon. — Fl. June, July. Pe- 

 rennial. 



12. Oxytropis.— Herbs, distinguished from Astragalus mainly 

 by having a mucronate point to the keel of the corolla. (Name 

 from the Greek oxiis, sharp, trbpis, a keel.) 



1. O. uralensis (Hairy Mountain Oxytropis). — A low plant; 

 leaves radical ; leaflets in about 1 2 pairs ; peduncles longer than the 

 leaves, erect, silky, 6 — 10-fiowered; flowers bright purple; pods 

 erect, silky. — Dry mountain 

 pastures in Scotland ; rare. — Fl. 

 June, July. Perennial. 



2. O. campestris (Yellowish 

 Mountain Oxytropis).- — A larger, 

 hairy, but less silky species, with 

 peduncles scarcely longer than the 

 leaves, and yellowish flowers 

 tinged with purple. Occurs only 

 in the Clova mountains. — Fl. 

 June, July. Perennial. 



13. ORNfTHOPUS (Bird's-foot). 

 — Slender, hairy herbs ; leaves 

 imparipinnate ; flowers few, 

 minute, in long-stalked umbels, 

 with a pinnate leaf below each 

 umbel ; keel blunt ; stamens 

 diadelphous; pods curved, in- 

 dehiscent, with many oval, 1- 

 seeded joints. (Name from the 

 Greek ports, a foot, ornithos, of 

 a bird, from the shape of the 

 fruits.) 



1. O. perpusillus (Common 

 Bird's - foot). — A pretty little 

 plant, with spreading, prostrate, 

 slender stems; downy leaves of 

 13 — 25 leaflets; exceedingly small cream-coloured flowers, veined 

 with crimson, with a leaf below each head ; and curved 7 — 9- 

 jointed pods ending in a claw-like beak. — Sandy heaths ; frequent. 

 — Fl. May — August. Annual. 



14. CoRONfLLA (Crown-vetch). — Perennial herbs or shrubs, 

 with imparipinnate leaves ; flowers on long-stalked, axillary umbels ; 

 calyx-teeth unequal, the two upper united ; petals rather 

 long-clawed ; keel beaked ; stamens diadelphous ; pod cylindric, 



ORNfTHOPUS rERPUSflXUS 



{Common Bird's-foot). 



