126 



lugumin6s;e 



dense oval heads of about 40 yellow flowers, resembling Medicdgo 

 lupulina in habit, but at once distinguished when in fruit by the 

 tawny, hop-like heads of withered flowers, the standard petals per- 

 sisting and arching over the pods ; style shorter than the pod. 

 Dry pastures ; abundant. — Fl. June — August. Annual. 



21.* T. agrdrium, a closely-allied form with the style as long as 

 the pod and the heads larger, occurs as a casual. 



22. T. dubium (Lesser Yellow 

 Trefoil), with much smaller heads 

 than T. procrimbens, 4 — 20- 

 flowered, turning dark brown, is 

 even more common in dry places. 

 — Fl. June — August. Annual. 



23. T.filifbrme (Slender Yellow 

 Trefoil). — A small, prostrate, very 

 slender, slightly hairy species, with 

 very , small 2— 7-flowered loose 

 heads, is much less common. — Fl. 

 June, July. Annual. 



9. Anthyllis (Kidney-Vetch). 

 Herbs or shrubs; leaves im- 

 paripinnate; flowers in capitate 

 cymes ; calyx inflated ; petals with 

 long claws ; stamens monadel- 

 phous ; pod enclosed in the calyx, 

 i-seeded. (Name of Greek origin.) 

 1. A. Vulnerdria{ Kidney- Vetch, 

 Lady's Fingers). — The only British 

 species, a handsome, herbaceous, 

 silky plant, with pinnate leaves 

 (the terminal leaflet largest), and 

 yellow flowers, with pale inflated 

 calyces. The dense, many-flowered 

 heads of flowers grow two together 

 at the end of each stalk, like the 

 two lobes of a kidney. There are 



white and red-flowered varieties. — Dry pastures. — Fl. June — 



August. Perennial. 



trif6lium proc^mbens (Hop Trefoil). 



10. Lotus (Bird's-foot Trefoil). — Herbs or undershrubs; leaves 

 of 4 or 5 leaflets ; stipules minute or absent ; flowers in long-stalked, 

 capitate or umbellate, cymes ; calyx not inflated ; stamens diadel- 

 phous ; pod longer than the calyx, straight, cylindric, many-seeded. 

 (Name of Greek origin.) 



