LATHYRUS.] LEGUMINOS^E. Ill 



* Leaflets one pair. Flowering peduncles longer titan the leaves. 



3. Ii. hirsu'tus, L. ; stem winged, leaflets linear-lanceolate, stipules 

 small ^-sagittate, peduncles 1-3 fld., calyx-teeth ovate-lanceolate longer 

 than the tube, pods tubercled densely silky, seeds papillose. 



Fields, York, Kent, Surrey, and Essex, very rare; (a colonist, Wats.}] fl. 

 June- July . Annual, almost glabrous except the pod. Stems 2-4 ft., 

 angled and 2-winged, wings herbaceous T ^ in. broad. Leaves scattered ; 

 petiole J-| in. ; tendrils stout, branched ; leaflets 1-2| in., nerves parallel ; 

 stipules with long subulate auricles. Peduncles 2-3 in. ; flowers distant, 

 pedicel as long as the calyx, hairy ; bracts minute, subulate. Flowers % in. ; 

 standard crimson, keel and wings paler. Calyx-tube short, obconic. Pod 

 l|-2 in., f in. broad, stipitate, dilated upwards, 8-10-seeded. DISTBIB. 

 From Belgium southd., "W. Asia, N. Africa. 



4. Ii. praten'sis, L. ; stem acutely angled, leaflets lanceolate, stipules 

 very large lanceolate sagittate, peduncles 3-12-ftd., calyx-teeth subulate 

 as long as the tube, pod glabrous or hairy, seeds smooth. 



Hedges, copses, and meadows, N". to Shetland ; ascends to near 1,600 ft. in 

 the Highlands ; Ireland ; Channel Islands ; fl. June-Sept. Glabrous or 

 slightly hairy, Rootstock creeping. Stems 1-2 ft. ; trailing or climbing. 

 Leaflets |-1 in., nerves indistinct ; stipules with spreading subulate auricles ; 

 petiole |-J in. ; tendrils short. Peduncles longer than the leaves ; pedicels 

 as long as the calyx -tube, hairy ; bracts setaceous. Flowers ^ f in., race- 

 mose, bright yellow. Pod 1-1 1 in., sessile, linear, acuminate, many-seeded. 

 DISTRIB, Europe (Arctic), N. and W. Asia to the Himalaya ; introd. in 

 N. America. 



L. TUBERO'SUS, Z. ; stem angled, leaflets obovate, stipules large |-sagit- 

 tate, peduncles 2-5 -fld., calyx- teeth triangular as long as the tube, pod 

 glabrous. 



Cornfields, Essex ; (a denizen, Wats.) ; fl. June- Aug. Glabrous. Rootstock 

 creeping, rootlets with small tubers. Stem 2-4 ft., climbing and trailing. 

 Leaflets 1-1J in., nerves diverging ; petiole and tendrils stout. Peduncles 

 very long ; pedicels longer than the calyx ; bracts subulate. Flowers in., 

 racemose, crimson. Calyx-tube broad. DISTRIB. Europe, W. Asia, N. 

 Africa. Root tubers edible. 



5. L. sylves'tris, L. j stem winged, leaflets large ensiform, stipules 

 falcate ^-sagittate, peduncles 3-10-fld., calyx-teeth triangular, tipper 

 shorter than the tube, pod glabrous, seeds faintly remotely tubercled. 

 Kooky thickets, local, often an escape, from Mull and Forfar southd. ; fl. 



June- Aug. Glaucous, glabrous. Rootstock creeping. Stem 3-6 ft., wings 

 herbaceous. Leaflets 4-6 in., J-| in. broad ; nerves parallel ; stipules large, 

 falcate, with long lanceolate auricles; petiole winged or not; tendrils 

 slender, branched. Peduncles 4-6 in. ; pedicels longer than the calyx ; bracts 

 filiform. Flowers - in., racemed ; standard rosy ; wings purplish. ' Calyx- 

 tube broad, short. Pod 2-3 in., sessile, narrowly winged above, 10-14-seeded. 

 DISTRIB. Europe (Arctic), Caucasus, N. Africa. Very near the Ever- 

 lasting Pea, which occurs here and there as an escape. 



