Trifolium.] LEGUMINOSJE. 99 



Salt marshes and meadows, from Gloster and Lincoln to Somerset ; Ireland ; fl . 

 June- Aug. — Annual. Stems 6-18 in., rigid, decumbent or ascending. Leaflets 

 ^-§ in., almost quite entire. Heads \ in., terminal, elongating in fruit. 

 Calyx with a 2-lipped contraction iu the throat ; tube ribbed ; teeth reaching 

 half-way up the corolla. Pod 2-valved. — Distrib. W. and S. Europe, 

 Holland to Spain, Greece and N. Africa. 



8. T. striatum, L. ; softly hairy, leaflets obovate, stipules membranous 

 free portion broadly triangular tip recurved, heads terminal and axillary 

 ovoid sessile, calyx ventricose, teeth short spinescent triangular-subulate 

 1-nerved spreading in fruit. 



Dry pastures, from Forfar southd. ; rarer in Scotland ; very rare in Ireland ; 

 Channel Islands; fl. June- July. — Annual. Stems 4-12 in., spreading, pro- 

 strate or ascending. Leaflets \-\ in., almost quite entire, petiole 2 in. ; stipules 

 of the leaves under the heads very much dilated. Heads |-§ in., dense, 

 broadest at the base. Flowers \ in. rosy. Calyx-tube ovoid, ribbed, mouth 

 contracted ; teeth shorter than the corolla. — Distrib. From Gothland southd., 

 N. Africa, Caucasus. — Var. erecta, Leight., is an erect luxuriant form. 



9. T. sca'brum, L. ; pubescent, leaflets narrowly or broadly obovate, 

 slipules rather rigid, free portion short triangular-subulate, heads terminal 

 and axillary ovoid sessile, calyx-tube ribbed, teeth triangular spinescent 

 1-nerved erect in flower lengthening spreading rigid and recurved in fruit. 

 Sandy and stony pastures, &c, in England; E. Scotland, from Forfar southd. ; 



E. Ireland ; Channel Islands ; fi. May-July. — Annual. Steins 4-10 in., rigid, 

 stout, prostrate, zigzag. Leaves very shortly petioled ; leaflets J-§ in., rigid, 

 strongly nerved, toothed. Heads §— § in. long, broadest in the middle. 

 Flowers minute, white. Calyx-tube purplish ; teeth equalling the corolla. 

 Pod minute. — Distrib. From Belgium southd., W. Asia, N. Africa. 



Section 3. Heads many-fld., usually axillary, rarely both axillary and 

 terminal ; pedicels distinct, short or long, bracteate. Calyx not inflated ; 

 throat naked ; teeth equal or the upper longest. Pod 2-4-seeded (or 1-seeded 

 through imperfection). 



10. T. glomera'tum, L. ; glabrous, leaflets obovate acute or obcordate, 

 stipules ovate with long points, heads axillary and terminal globose sessile, 

 calyx-teeth short ovate 1-nerved spinescent reticulated spreading in fruit. 

 Gravelly and sandy pastures, &c.,rare ; Norfolk and Kent to Cornwall; Wick- 

 low ; Channel Islands ; fl. June. — Annual. Stems 6-12 in., prostrate, spread- 

 ing, slender. Leaflets £-* in., nerves fine but ending in strong teeth. Beads 

 5 in. diam., distant. Flowers blue-purple, subsessile. Calyx-teeth nearly 

 equal, shorter than the corolla, contracted at the base. Standard persistent, 

 scarious, striate. — Distrib. W. France, Spain, and Mediterranean region. 



11. T. sufifoca'tum, L. ; glabrous, petioles very long, leaflets obcordate, 

 stipules ovate acuminate, heads sessile ovoid, calyx campanulate, teeth not 

 spinescent recurved in fruit exceeding the corolla. 



Sandy and gravelly pastures, especially near the sea, rare; .Anglesea and 

 Norfolk to Cornwall and Kent; Channel Islands; fl. June-July. — Annual. 

 Stems 2-6 in., prostrate, spreading, slender. Leaflets |-| in., toothed, nerves 



H 2 



