112 LEGUMINOS&. [Lathyrup. 



** Leaflets 2 or more pairs. Flowering peduncles longer or shorter than the 



leaves. 



6. L. palus'tris, L. ; stem winged, leaflets 2-3 pair sword-shaped, sti- 

 pules lanceolate \- sagittate, peduncles usually longer than the leaves 2-6- 

 fld., pod compressed glabrous. 



Boggy meadows and copses, from York and Carnarvon to Somerset and 

 Suffolk, local ; Ireland, very rare ; fl. June-Aug. — Glaucous, glabrous. 

 Eootstock creeping. Stems 2-4 ft., climbing or trailing, wings herbaceous. 

 Leaflets 2-3 pair, 2-3 in., nerves parallel ; tendrils rather short, branched ; 

 stipules | in. Peduncles 1-4 in. ; pedicels shorter than the calyx-tube ; 

 bracts minute. Floivers §-f in., pale blue-purple. Calyx-tube short. Pod 

 l|-2 in., stipitate, reticulate, 6-8-seeded. Seeds smooth. — Distrib. Europe 

 (Arctic), N. Asia, N. America. 



7. Ij. marit'imus, Bigelow ; stem angled, leaflets 3-5 pair oblong, 

 stipules ovate ^-hastate, peduncles usually shorter than the leaves 5-10- 

 fld., pod turgid glabrous. Pisum marit'imum, L. 



Pebbly beaches on the E. coast, local ; from Shetland to Kent and Dorset ; 

 Kerry ; fl. June- Aug. — Glaucous, glabrous. Rootstock long, stout, black. 

 Stems 1-3 ft., creeping at the base, prostrate. Leaflets 1-2 in., alternate or 

 subopposite, nerved, upper gradually smaller ; petiole 2-4 in. ; tendrils 

 short ; stipules nearly 1 in. Peduncles stout ; pedicels sborter than the 

 calyx ; bracts minute. Flowers §-§ in., purple, fading to blue. Pod 1^-2 

 in., reflexed, straight, 6-8-seeded. Seeds smooth. — Distrib. Arctic and N. 

 Europe, Asia, and America. 



L. marit'imus proper; leaflets broadly oblong obtuse. — Var. acutifo'lia, 

 Bab. ; slender, straggling, leaves elliptic-lanceolate acute. Shetlands and 

 Orkneys. 



Section 4. Or'obus, L. ; (gen.). Perennial. Petiole ending in a short 

 point without tendrils. Calyx gibbous at the base. 



8. Ij. macrorrlii'zus, Wimm. ; stem winged, leaflets 2-4 pairs, stipules 

 ^-sagittate usually toothed below. 



Copses, &c, N. to Shetlands, ascends to 2,100 ft. in the Highlands; Ireland ; 

 fl. June-Aug. — Glabrous or very slightly hairy. Rootstock creeping and 

 forming tubers. Leaflets 1-2 in., f-l| in. broad, nerves parallel in the nar- 

 row forms, diverging in the broad ; petiole |-1| in. ; stipules \ in., rarely 

 quite entire, very variable. Peduncles slender, equalling or exceeding the 

 leaves, 2-6-fld. ; pedicels shorter than the calyx ; bracts minute. Flowers 

 \-\ in., lurid crimson, fading to green or blue. Calyx-teeth triangular, 

 shorter than the tube, upper very short. Pod subcylindric. Seeds globose. 

 —Distrib. Europe. 



L. macrorrhi'zus proper; leaflets elliptic-oblong acute or obtuse. Or'obus 

 tubero'sus, L. — Var. O. tenuifo'lius, Roth ; leaflets sword-shaped or narrow- 

 linear. 



9. L. ni'ger, Wimm. ; stem angled, leaflets 3-6 pairs oblong-lanceolate 

 acute or mucronate, stipules linear-lanceolate acute. 



Subalpine Scotch valleys; Den of Airly, Killiecrankie, Moy House ; ascends 

 to 1,200 ft.; (native? Wats.); fl. June-Aug.— Glabrous, black when dry. 



