106 ENGLISH BOTANY. 
neighbourhood of Lincoln, “in the north field of Blankney, near 
the road to Lincoln.” 
England. Perennial. Late Summer and Autumn. 
Stems weak, slender, with raised lines, but without wings, 2 to 
4 feet long. Leaflets 3 to 1} inch long, widest rather beyond the 
middle. Stipules about as long as the petiole exclusive of the 
tendril. Peduncles 2 to 5 inches long. Lowest calyx-tooth longer 
and narrower than the others. Flowers 3} to ? inch long, bright- 
crimson. Standard with the lamina orbicular, slightly emarginate, 
spreading at right angles to the claw and with the sides reflexed, 
a little longer than the wings.and keel. Style curved upwards and 
twisted on “its own axis. Pods 3 8 to 14 inch long, often clavate in 
the Fyfield plant, from the seeds towards the base being abortive ; 
the sides have anastomosing longitudinal oblique veins. The ripe 
seeds I have not seen, as the corn is cut before the pods have time 
to arrive at maturity; but the seeds set, so that Dr. Walker-Arnott 
is mistaken in saying the flowers fall off without bearing fruit.— 
(Brit. Fl. ed. viii. p. 606.) Plant pea-green, glabrous. 
This plant is remarkable for the subterranean tubers, which are 
1 to 2 inches long, broadest at the sessile base, and tapering to the 
apex. 
Tuberous Vetchling. 
French, Gesse Tubéreuse. German, Lrdnuss, 
This showy pea is cultivated in Holland for its edible roots. Gerarde calls it the 
Peas-earthnut. 
SPECIES VI—LATHYRUS SYLVESTRIS. Linz. 
Puate CCCCIL. 
Rootstock creeping, without tubers. Stem climbing or trailing, 
with wings as broad as or broader than itself. Leaves with 1 pair 
of elliptical-lanceolate or linear-lanceolate acute mucronate leaflets ; 
common petiole with a wing nearly as broad as itself, terminating in 
a much-branched tendril. Stipules lanceolate, half-sagittate at the 
base with a slender acute auricle. Peduncles axillary, longer than 
the leaves, 3- to 10-flowered. Flowers spreading, in a lax raceme. 
3 lower calyx-teeth triangular, about as long as the tube; the 
ti i en tl SS = lO eC 
ee ae ee a 
upper pair deltoid and much shorter than the tube. Corolla more | 
than twice as long as the calyx. Pods cylindrical-oblong, com- 
pressed, glabrous. Seeds transversely globular-ovoid, compressed, 
dim, black, faintly tuberculated with be tubercles separate ; hilum 
one-half the circumference of the seed. 
In bushy places, woods, and hedges, or on rocks. Local. 
Found in most of the English counties, but very rare in Scotland. 
