164 THE PEATLOWER TBIBE. 



slender. Petals remaining round the pod as in Clover. Pod sUglitly curved, 

 glabrous, containing 6 to 8 seeds. 



In dry sandy pastures, chiefly near the sea, in western and southern Eu- 

 rope, extending northward to Denmark. In several maritime counties of 

 England, Ireland, and southern Scotland. PL early summer. 



Vni. CLOVER. TEirOLIUM. 



Herbs, with stipules adhering to the leafstalks. Leaves pinnately or 

 almost digitately trifoliolate ; the leaflets often toothed. Flowers red, white, 

 or yellow, in close heads. Calyx 5-toothed. Petals narrow, often connected 

 together by the claws, and usually remaining round the pod after fading. 

 Stamens diadelphous, the upper one entirely fi-ee. Pod scarcely protru- 

 ding beyond the calyx, containing from 1 to 4 seeds, and usually inde- 

 hiscent. 



A very widely spread and numerous genus in the northern hemisphere, 

 both in the new and the old world, deficient in several tropical regions, but 

 reappearing in southern America and Africa. It is readily distinguished 

 from the Medicks and Trigonels by the pod, from the Melilots by the com- 

 pact heads of flower. 



^Heads of flowers pedunculate in the arils of the leaves, or above the last leaves 

 1< of the stem 2 



(, Heads of flowers closely sessile in the aiils, or within the last leaves of the stem . 14 

 Q C Flowers yellow, reflexed and brown when faded 3 



\ Flowers red, white, or cream-coloured 5 



("Flowers 30 to 40, in a compact head. Standard distinctly furrowed when faded. 

 3 -J 18. Sop C. 



(.Flowers not more than 20 in the head. Standard scarcely striate 4 



/"Flowers usually 10 to 20 in the head, sessile or on very short pedicels 19. Lesser C 

 4< Flowers 2 or 3, rarely 5 or 6 in the head. Pedicels as long as the calyx-tube. 



(. 20. Slender C. 

 , r stem creeping, and rooting at the nodes, or closely prostrate 6 



\ Stem ascending or erect 8 



« (■ Flowers pedicellate in the head, reflexed after fading 17. VThite C. 



\ Flowers sessile, erect 7 



/"Heads globular. Flowers small. Calyimuch inflated after flowering. 

 «} 16. Stramberry C. 



' ) Heads of few rather large flowers. Peduncles turned down into the ground 



C after flowering 15. Subterranean C. 



„ f Heads oblong or cylindrical when fully out 9 



t Heads ovoid or globular 10 



-f Corolla small, shorter than the long, fine calyx-teeth 2i. Bare'a-foot C. 



t Corolla ehowy. Standard longer than the calyx-teeth 1. Crimson C. 



t Corolla small, 1 to 3 lines long 11 

 Corolla showy, 5 to 6 lines long or more 12 



rCalyi-teeth short, lanceolate, slightly ciliate 7. Sea C. 



I Calyx-teeth short, subulate, glabrous 11. Upright C. 



11 -i Calyx softly hairy, the teeth longer than the coroUa, spreading after flowering. 



3. Starry C. 



l^Calyx inflated after flowering. Standard turned outwards ... 14. Seversed C. 

 .„ f Annual. Teeth of the calyx nearly equal 1. Crimson C. 



I Perennials. Lower tooth of the calyx longer than the others 13 



,„ r Flowers red 6. Zigzag C. 



I Flowers cream-coloured 4. Su^hur C. 



. . / Corolla showy, 6 lines long or more ; . . 15 



I Corolla small, 1 to 3 hues 16 



|.f Flowers red 5. Purple C. 



\ Flowers cream-coloured 4. Sulphur C. 



f Heads globular. Calyx glabrous, with short recurved teeth 17 



16 < Heads ovoid or oblong when fully out. Calyx more or less hairy, with rigid, erect 



L or spreading teeth .18 



10{< 



