982 TRIGONELLA. | CLASS XVIT. ORDER I1I- 
inflated in fruit, as the peduncles become deflexed after flowering, 
the calyces become reflexed, and from the extremity of the peduncle 
several other abortive calyces are put out, having their five teeth 
spread in a star-like manner, resembling roots, these at length are 
also reflexed, and surround the fruit bearing calyces, forming a 
globose head. Legume containing a single black ovate seed. 
Habitat.—Dry gravelly and sandy pastures in various parts of 
England. 
Annual; flowering in May. 
It is interesting to observe the growth of this plant, spreading its 
long slender branches on the surface of the ground, and from the 
axis of the leaves putting out its cluster of about three flowers, 
on a peduncle, which is at first short ‘and erect, afterwards it 
elongates, and is recurved, and from the base of each of the calyces, 
which become reversed, are protruded small filaments, like roots ; 
these penetrate the ground, and the calyx teeth are much elongated; 
but we have not been able to ascertain if the calyx expands into a 
new plant or not. 
GENUS XIII TRIGONEL’LA.—Lixn. Fenngreek. 
Nat. Ord. Papitrona'’cEx, Linn. 
Gen. Cuar. Calyx campanulate, five-cleft. eel very small, the 
wings and vexillum together imitating a tripetalous corolla. 
Legume oblong, compressed, or cylindrical, acuminate, nearly 
erect, many seeded.—De Cand.—Name from ‘tees, three; and 
yovwe, an angle; so called from the triangular shape of the 
flowers. 
1. T. ornithopedioi'des, Dee. (Fig. 1139.) Bird sfoot Fenngreek, or 
Trefoil. Flowers from two to four together from the axis of the 
leaves; legumes somewhat curved, compressed, twice as long as the 
calyx, about eight seeded ; leaflets obcordate, toothed ; stipules sub- 
membranous, lanceolate, taper pointed. 
De Candolle Prodomus, vol ii. p. 184.—Lindley, Synopsis, p. 82.— 
Trifolium © ornithopodioides, Linn.—English Botany, t. 1047.— 
Hooker, British Flora, ed. 4. vol. i. p. 274.—Faleatula falsotrifolium, 
Brot. 
Root tapering, and fibrous. Stems several, from four to eight 
inches long, round, smooth, branched and leafy, spreading close to 
the ground. Leaves with long slender footstalks, leaflets three, all 
nearly sessile, obcordate, coarsely toothed upwards, smooth, with a 
stout mid-rib, and slender lateral veins. Stipules sub-membranous, 
veiny, lanceolate, with a long tapering point. Inflorescence axillary 
stalks, bearing from one to four flowers, which are elevated on a short 
partial footstalk from the axis of a thin membranous two pieced 
