LATHYRUS.~-ARTHROLOBIUM. 83 
compressed smooth 4 surrounded by the hilum.”—E. B. 169.— 
St. 2—3 feet high. FI. bluish purple.—Bo; meadows, rare. 
P. VI. VIL. = oe ao 
8. L. maritimus (Big.); st. angular not winged, peduncles 
oe 1. of 3—8 pairs of oval leaflets, stip. large oval 
cordate-hastate, pods oblong obliquely reticulated, seeds globose 
3 surrounded by the hilum.—Pisum Sm., E. B. 1046.—St. pro- 
strate. Leaflets large, obtuse but apiculate; petioles often re- 
curved. Fl. purple, variegated.—f. acutifolius (Bab.); leaflets 
elliptic-lanceolate acute, petioles straight, stemsslender straggling. 
—Pebbly sea-shores, rare. 8. Burrafirth, Unst, Shetland. P. 
VII. VILL. Sea Pea. 
9. L. macrorhizus (Wimm.); st. simple winged, peduncles 
2—4-flowered, 1. of 2—3 pairs of oblong or lanceolate blunt api- 
culate leaflets without tendrils, stip. half-arrowshaped. broad, pods 
cylindrical, seeds globose + surrounded by the hilum.—Orobus 
tuberosus Sm. E. B. 1153.—Root tuberous. L. glaucous be- 
neath. FI. purple, variegated with red and blue.—8. tenuifolius ; 
1 lines — Wools and thickets in hilly countries. P. VI. VII. 
10. L. niger (Wimm.); st. branched not winged, ped. many- 
flowered, 1. of 3—6 pairs of lanceolate or oblong leaflets without 
tendrils, stip. linear-subulate the lower ones half-arrowshaped, 
pods slightly compressed, seeds oval 3 surrounded by the hilum. 
—Orobus Sm., E. B. S. 2788.—Turns black in drying. Fi. va- 
riegated with red blue and purple. Pods linear. Seed dark 
brown, perfectly smooth.—Rocky woods in Scotland, rare. . 
VI. VIL. S. 
Tribe III. Hedysaree. 
14. OrnitrHopus Linn. 
1. O. perpusillus (L.) ; peduncles longer than the leaves, calyx- 
teeth triangular acute ¢ the length of their tube, beak scarcely as 
long as a jomt of the pod— E. B. 369.—A small prostrate plant, 
3—12 in. long. L. with 54—123 pairs of elliptical downy leaf- 
lets. Fl. small; calyx hairy, cor. white with crimson veins. 
Pods curved, joints beadlike wrinkled lengthwise-—Dry sandy 
and gravelly places. A. V.—VII. Birdsfoot. 
15. ArTHROLOBIUM Desv. 
1. A. ebracteatum (DC.); peduncles about as long as the I. 
2—4-flowered, stip. minute distinct, 1. pinnate with many pairs 
of elliptic-oblong leaflets, the lowest pair remote from the stem. 
—E. B. S. 2844.—St. prostrate filiform. FI. small, yellow. 
