46 ENGLISH BOTANY. 
the cliffs from Kynance to Cadgwith, a distance of six miles.”— 
(Borrer, in Eng. Bot. Sup.) 
England. Annual. Spring and early Summer. 
Extremely like T. eu-incarnatum, of which it may possibly be 
merely the wild form, though constantly differing in its pale flowers. 
Stem shorter, and stouter in proportion to its length, with the 
hairs more adpressed. Calyx-teeth rather broader, and their 
points mostly glabrous. Both forms remain constant in cultiva- 
tion, unlike the cultivated variety of 'T. pratense, which reverts in 
time to the ordinary wild state. 
Balbi’s Trefoil. 
French, Z'réfle de Balbi. 
SPECIES VIIL—TRIFOLIUM ARVENSE. Linn. 
Pratt CCCLIV. 
Rootstock none. Stems several, ascending, branched. Leaf- 
lets elliptical- or oblanceolate - strapshaped apiculate, entire or 
toothed in the upper portion. Stipules adnate for less than half 
their length, with the free part elongated, setaceous. Leaves 
all opposite. Flower-heads terminal and axillary, stalked, ovoid, 
ovoid-cylindrical, or sub-globose. Calyx-tube bell-shaped, faintly 
10-nerved, softly hairy, the throat having a slightly-elevated ring 
with long distant hairs which do not close its mouth; teeth 
setaceous, longer than the tube, nearly equal, plumose, erect, not 
altered in fruit. Corolla shorter than the calyx-teeth. Plant more 
or less hairy. 
On dry pastures, downs, and sandy places. Not uncommon, 
and generally distributed, except in the extreme North of Scotland. 
Stems numerous, 3 inches to 1 foot high, branched in the larger 
examples. Leaves numerous, very shortly stalked, the leaflets > to 
inch long. Stipules + to 4 inch long, the greater part free and 
very slender, with a few parallel veins. Flower-heads } to 1 inch 
long, very dense, shortly stalked, terminating all the branches, and 
a few of them on peduncles from the axils of the leaves, the ter- 
minal ones sometimes appearing to be in pairs, from the uppermost 
of the axillary ones being situated very near it. Flowers + inch 
long, white, turning to flesh-colour. Calyx-teeth very slender, 
erect, and with long soft-hairs. Seeds sub-globose, smooth. Plant 
greyish-green, often tinged with red or purple. 
This species is easily distinguished by its soft plumose heads; 
the leaves also are sub-fasciculate, those from the axils of which a 
branch is not produced having 1 or more smaller leaves in its place. 
