4-4 ENGLISH BOTANY. 



Perfectly naturalized on the ballast - heaps along Shoreham 

 Harbour, where it has maintained its position since 1804. 

 England. Annual. Spring and Summer. 



Stems 3 inches to 1 foot high, very slightly branched, and that 

 only in the largest specimens. Leaves very distant, the upper ones 

 on short stalks. Leaiiets ^ to -^ inch long. Stipules ^ to | inch 

 long. Heads f inch across in flower, increasing to 1^ inch in fruit. 

 Flowers sub-sessile, f inch long, white, tinged with flesh-colour, but 

 inconspicuous from the long silky-haired calyx-teeth, which equal 

 them in length ; the teeth themselves scarcely lengthen in fruit, but 

 become much broader at the base, so as to assume an elongate- 

 triangular form, and spread horizontally like the rays of a star; 

 the mouth of the tube becomes completely closed with the white 

 hairs growing at the throat. Pod smaU, 2-valved. Seed ovoid, 

 compressed, smooth, shining. 



This has very little resemblance to any of the preceding species. 



Starry -headed Trefoil. 



French, Trejie EloUe. 



SPECIES VII.— TRIPOLI UM INCARNATUM. Linn. 

 Plates CCCLII. CCCLIII. 



Rootstock none. Stems several (rarely solitary), erect or 

 ascending, nearly simple. Leaflets inversely-deltoid-orbicular 

 truncate or very faintly notched at the apex, finely denti- 

 culate on the apical margin. Stipules sub-membranous, with 

 numerous branching veins which do not anastomose, adnata for 

 three-quarters their length, with the free portion rather short, 

 oval, obtuse. Leaves all alternate. Flower-heads stalked, terminal, 

 dense, ovoid or ovoid-cylindrical, slightly elongating in fruit. Calyx- 

 tube oblong, 10-ribbed, hairy, the throat having an elevated ring 

 bearing short hairs, which do not completely close its mouth ; 

 teeth subulate-aristate, longer than the tube, the four upper 

 ones nearly equal, the lowest a little exceeding them, erect in 

 flower, becoming broader at the base and spreading in fruit, with a 

 very thick central nerve and long stiff hairs. Corolla about as long 

 as the calyx. Plant pubescent. 



Sub-Species I.— Trifolium eu-incarnatum. 



Plate CCCLII. 



T. iuoarnatutn, Boreau, Fl. du Centre de la Fr. ed. iiL p. 182. 

 T. iucaruatum, var. «, Auct. Plur. 



