CLASS XVII. ORDER 111. | _ HIPPOCREPIS. 993 
Hooker, British Flora, ed. 4. vol. i. p. 273.—De Cand. Prod. 2. p. 
311.—Ornithopus levigatus, Smith in Rees. Cycl. n. 3.—Scorpiurus 
pinnata, Mill. Dict. 
Habitat.—Sandy ground near Grand Havre, Guernsey, but rare.— 
Babington and Christy. 
Annual; flowering in July and August. 
GENUS XIX. HIPPOCRE'PIS—Linn. Horse-shoe Vetch. 
Nat. Ord. Paprnirona’cax. LINN. 
Grn. Cuan. Calyx short, campanulate, five toothed, bi-labiate. 
Keel acuminated, two lobed. Stamens diadelphous. Legume 
elongated, compressed, jointed, curved, the outer edge deeply 
notched. Seeds oblong, cylindrical, curved—Name from ‘770s, 
a horse; and xenzis, a shoe; so called from the curves of the 
fruit resembling a horse’s shoe. 
1. H. como'sa, Linn. (Fig. 1153.) Tufted Horse-shoe Vetch. Stem 
herbaceous, spreading; peduncles longer than the leaves, the apex 
umbellate ; legumes five to eight, curved, sinuated at each margin, 
rough, the joints contracted and smooth. 
English Botany, t. 31.—English Flora, vol. iii. p. 291.—Hooker, 
British Flora, ed. 4. vol. i. p. 273.—Lindley, Synopsis, p 88. 
foot long, slender, woody. Stems much branched at the base, 
striated and furrowed, smooth, procumbent and spreading, from six 
to twelve inches long. eaves numerous, pinnate, with long smooth 
furrowed footstalks, leaflets smooth, pale glaucous green, obovate, 
obtuse, abrupt, or notched, each on a short hairy footstalk, in from 
four to six pairs, and an oddone. Stipules ovate lanceolate, mem- 
branous. Inflorescence umbellate, of about eight pale yellow flowers 
at the apex, of a smooth furrowed peduncle, much longer than the 
leaves, pedicles short, hairy, arising from the axis of a small tri- 
angular bractea, forming an involucre to the umbel. Calya short, 
campanulate, hairy, with five short lanceolate teeth. Corolla_ yellow, 
the vexillum erect, somewhat reflexed, a deeper yellow than the rest 
of the flower, and striated, the claw vaulted, wings obovate, obtuse, 
with narrow claws, keel acuminated into a two lobed point. Legume 
about an inch long, curved inwards, from three to five jointed, each 
joint deeply sinuated on the inner margin, the outer one less so, and 
forming the joint, rough, with numerous elevated glands, pink (when 
dry), the joints contracted and smooth. 
Habitat—Chalky and limestone banks and pastures in various 
parts of England; Dundonald, Scotland. 
Perennial; flowering in July. 
