126 THE PEAFLOWER TRIBE, 
Ireland. Fl. summer, often lasting late. The everlasting Pea of our 
gardens, LZ. latifolius, Linn., is a broad-leaved variety from southern 
Europe, with larger, more richly coloured flowers, and some slight 
difference in the seeds. As an escape from cultivation, it will often 
’ establish itself in the vicinity of gardens. 
7. L. palustris, Linn. (fig. 294). Marsh Pea.—A glabrous, some- 
what climbing perennial, not half the size of the ZL. sylvestris, and the 
wings of the.stem much narrower. Stipules half-sagittate. Leaflets 
oblong-lanceolate, 2 to 4 pairs to each leaf, the tendril usually branched. 
Flowers smaller and not so broad as in L. sylvestris, of a bluish-purple 
colour, from 2 to 8 inthe raceme. Pod glabrous, rather more than an 
inch long. 
In moist meadows and boggy places, in northern and central Kurope, 
Russian Asia, and northern America, Dispersed over a few localities in 
England and Ireland, but only a very doubtful inhabitant of Scotland. 
Fl. summer. 
L. maritimus, Bigel. (fig. 295). Sea Pea.—A glabrous, rather stout, 
branching perennial, with a creeping rootstock, and sharply angular 
spreading'stemsaboutafootlong. Stipules broad ‘and leaf- like, sagittate 
at the base, both sides nearly alike. Leaflets 5 or 6 pairs to each leaf, 
those next the stem often 2 inches long by 1 broad, the tendril simple 
or branched. Peduncles about the length of the leaves, with a raceme 
of 6 to 8 large flowers of a bluish-purple. Pod hairy, at least when 
young, 1 to 2 inches long. we 
On gravelly sea-coasts, in northern and Arctic Europe, Asia, and 
America, not extending southwards in Europe beyond the shores of 
Picardy. Occurs in a few localities on the coasts of southern and 
eastern England, of Shetland, and of Kerry in Ireland. Fl. summer. 
9. L. macrorrhizus, Wimm. (fig. 296). Z'uberous Pea.—Rootstock 
perennial, forming small tubers; the annual stems glabrous, nearly 
erect, simple or nearly so, 6 inches to a foot high. Leaves without 
tendrils ; the leafstalk ending in a fine point, or sometimes in a narrow 
leaflet ; the leaflets usually 2 pairs, sometimes 3 or even 4 pairs, oblong- 
lanceolate or linear. Peduncles slender, bearing a loose raceme of 2 to 
4 flowers of a bright reddish-purple. Pod glabrous, about 14 inches 
long. The whole plant dries black like the following species, JZ. 
montanus, Bernh. Orobus tuberosus, Linn. 
In thickets and open woods, under hedges, &c., throughout Europe, 
except the extreme north. Abundant in Britain. Fl. spring and early 
summer. This and L. niger form part of the old genus Orobus, still kept 
up by many botanists, but only differing from Lathyrus by the want of 
tendrils to the leaves. ) 
10. L. niger, Wimm. (fig. 297). Black Pea.—A glabrous perennial, 
always turning black in drying; the rootstock short and not tuberous ; 
the stems erect or ascending, branched, 1 to 2 feet high or even more. 
Stipules small and narrow. Leaflets 4 to 6 pairs to each leaf, ovate or 
elliptical, 6 lines to an inch long, the common stalk ending in a short 
point. Peduncles longer than the leaves, with a short raceme of 6 to 8 
flowers. Pod glabrous, near 2 inches long. 
In mountainous and rocky districts, throughout temperate Europe to 
the Caucasus, extending far into Scandinavia, In Britain, only known 
from two localities, in Perth and Forfar. Fl. summer. | 
