LEQUMINO&B. 91 



very many, prostrate. Leaflets ^ in., broadly obcordate. Heads of flowers 

 $ in. diam., lengthening after flowering, flowers cream-coloured. Pod 

 orbicular, compressed. Seeds shining. DISTRIB. -Europe from Holland 

 southwards, N. Africa, W. Asia to N.W. India. 



SECTION 2. Heads many-flowered, rarely axillary, globose or oblong, 

 pedicels ebracteate. Calyx not inflated ; throat with a ring of hairs or 

 callous constriction (obscure in T. Bocconi) ; teeth ciliate, equal or the 

 lower longest. Petals usually persistent. Pod sessile, 1-seeded. 

 * Heads cylindric or oblong during or after flowering. 



2. T. arven'se, L.; softly hairy, leaflets narrow obovate-oblong longer 

 than the petioles, stipules with very long setaceous points, heads terminal 

 peduncled soft cylindric, calyx-teeth persistent longer than the petals 

 plumose. Hare's-foot Trefoil. 



Dry pastures and fields, from Isla and Ross southwards ; rare and local in 

 Ireland ; fl. July-Sept. Annual. Stems many, ascending or suberect. 

 Leaflets ^-f in. Heads -1 in., dense. Flowers minute, white or pale pink. 

 DISTRIB. Europe, N. Africa, Siberia, W. Asia ; introd. in America. 



3. T. Bocconi, Savi ; pubescent, leaflets obovate, stipules ovate with 

 setaceous points, heads axillary and terminal cyliudric sessile, calyx 

 glabrous teeth straight erect spinescent rather shorter than the petals. 

 Dry places, Lizard and Ruan -Minor in Cornwall, very rare ; a native? Watson,' 



fl. July. Annual. Stems 2-4 in. (10-12 in. in cultivation). Leaves shortly 

 petioled ; leaflets | =| in., glabrous above, variable in breadth. Heads -J in. 

 flowers white. Calyx with a very obscure ring in the throat. Pod enclosed 

 in the (not ventricose) calyx. DISTRIB. France, Spain, Italy, to Turkey ; 

 Canaries. 



4. T. incarna'tum, L. ; softly pubescent or villous, leaflets broadly 

 obovate or obcordate, stipules obtuse, heads peduncled terminal ovoid or 

 cylindric, calyx hairy teeth shorter than the corolla spreading in fruit. 

 Crimson Clover. 



Fields and roadsides ; not in Ireland ; fl. June-July. Annual. Very variable 

 in size and pubescence. Stems rather slender. Leaves shortly petioled ; 

 leaflets f-1 g in. Heads 1-2 in. Flows % in. Calyx-ribs strong. DISTRIB. S. 

 and W. Europe. 



Sub-sp. incarna'tum proper ; hairs of stem spreading, calyx-teeth hairy to the 

 tips, flowers bright scarlet. An escape from cultivation. A common 

 fodder crop. 



Sub-sp. MOLINE'RII, Ball>is (sp.); hairs of stem appressed, heads shorter, 

 calyx -teeth glabrous at the tips, flowers pale white or rose. Lizard Point 

 and Kynance Cove, amongst short grass ; native ? Watson. Probably the 

 original form, of which incarnatmn is the cultivated state. 

 ** Heads ovoid or globose. 



5. T. ochroleu'cum, L. ; softly pubescent, leaflets obovate or oblong, 

 heads terminal globose at length ovoid, peduncles short subtended by 

 opposite leaves, calyx-teeth spinescent spreading and recurved in fruit, 

 lowest much longest. 



Dry pastures, local, E. counties, from Norfolk and Bedford to Hants ; 

 fl. June-Aug. Perennial. Stems ascending 6-18 in. Leaflets J-l in., tip 



