LEGUMINIFER^. 43 



the tube, ti'iangular-subulate, the 4 upper nearly equal, shorter 

 than the calyx-tube, the lower one longer than the tube ; all 

 increasing in size and becoming rigid, spreading and somewhat 

 Icaflikc in fruit, 3-nerved, with the central nerve very thick. 

 Corolla twice as long as the calyx. Plant pubescent. 



In grassy places by the sea and near brackish water, and in 

 salt marshes. Rare, and confined to the South of England. I 

 have seen it myself only in Kent and Essex, but have specimens 

 from Gloucestershire. It is also reported, on good authority, from 

 Somerset, Dorset, Suffolk, Norfolk, and Monmouth. 



England. Annual. Summer. 



Stems rather rigid, nearly straight, obliquely ascending, or in 

 tall specimens decumbent, 6 to 18 inches loug, repeatedly branched. 

 Leaflets ^ to f inch long, Avideniiig towards the apex. Stijiules ^ 

 to f inch loug, the free portion being about half this length, not 

 apijlied to the petiole. Heads ^ inch long, in fruit f inch. Elowers 

 pale flesh-colour, f to -^ inch long. Calyx-tube becoming bell- 

 shaped, cylindrical and coriaceous in fruit, with 10 strongly-marked 

 ribs ; teeth then becoming spreading, licrl)aceous, with rigid nerves 

 which run out into almost spiny poiiits. Pod 2-valved. Seeds 

 ovoid, smooth. Plant dull-green, pubescent, with distant short 

 hairs, or more rarely sub-glabrous. 



Teasel-headed Trefoil. 



French, Trefle Maritime. 



SPECIES VT— TRIPOLI UM STELLATUM. Linn. 

 Plate CCCLI. 



Rootstock none. Stems few, erect or ascending, simple. Leaflets 

 wedge-shaped or inversely-deltoid-obovate, obcordate, denticulate 

 at the apical margin. Stipules sub-membranous, with numerous 

 herbaceous branching nerves which do not anastomose, adnatc 

 for half their length, with the free portion largo, broadly-ovate, 

 shortly-acuminate, often denticulate on the margins. Leaves all 

 alternate. Flower-heads long-stalked, terminal, lax, sub-globose. 

 Calyx-tube obconical, 10-ribbed, with long hairs, the throat having 

 an elevated ring bearing long woolly hairs, which completely close 

 its mouth ; teeth much longer than the calyx, all nearly equal, 

 subulate-filiform, erect in flower, triangular-subulate and spreading 

 in fruit, 3-nerved, reticulated with long stiff hairs on the back. 

 Corolla about as long as the calyx. Plant pubescent. 



