CL. XVII.] DIADELPHIA DECANDRIA. 291 



Perennial: flowers in May and June: grows in mountainous 

 woods and thickets: not common. Eng. Bot. vol. viii. pi. 518. 

 Eng. FL vol. iii. p. 273. 1039. 



9. LA/THYRUS. VETCHLING. 



Calyx superior, cup-shaped, unequal, with five lance-shaped 

 segments, the two upper shorter, the lower one longest. Corolla 

 of five petals ; standard largest, inversely heart-shaped, reflected 

 at the sides ; wings oblong, obtuse, somewhat curved upwards, 

 approaching each other ; keel rounded, of two united petals, 

 with separate claws. Filaments ten, nine united into a com- 

 pressed tube, open at the upper edge, the other hair-like, separate ; 

 anthers small, roundish. Germen oblong, compressed. Style 

 ascending, flattened vertically, dilated upwards, acute at the 

 end ; stigma longitudinal, downy, running along the upper half 

 of the style. Legume long, cylindrical or compressed, pointed, 

 one-celled, two-valved. Seeds several, roundish. Name, la- 

 thyros, used by Theophrastus. 354. 



* Flowers solitary. 



1. L. A'phaca. Yelloio Vetchling. Tendrils without leaves ; sti- 

 pules heart-shaped and arrow-shaped. Stems procumbent or 



climbing by means of tendrils, each of which arises from between 

 a pair of large stipules : flowers greenish-yellow. Annual : flowers 

 from June to August : grows in the borders of sandy fields in 

 England : rare. Eng. Bot. vol. xvii. pi. 1167. Eng. Fl. vol. Hi. p. 

 274. 1040. 



2. L. Nissolia. Crimson Vetchling. Leaves simple, without ten- 

 drils; stipules awl- shaped. Stems slender, with sessile lance- 

 shaped leaves, and crimson flowers. Annual : flowers in May : 

 grows in the borders of fields in England : frequent. Eng. Bot. vol. 

 ii. pi. 112. Eng. FL vol. iii. p. 275. 1041. 



** Floivers in pairs. 



3. L. hirsutiis. Rough-podded Vetchling. Tendrils with two 



narrow lance-shaped leaflets; legumes hairy; seeds rough. 



Stem winged, slightly hairy, climbing : flowers variegated, the 

 standard crimson, the wings pale-blue, the keel white. Annual : 

 flowers in July : grows in cultivated fields in England : rare, Eng. 

 Bot. vol. xviii. pi. 1255. Eng. Fl. vol. iii. p. 275. 1042. 



*** Flowers numerous on each stalk. 



4. L. pratensis. Yellow Meadow Vetchling. Tendrils simple, each 



with two lance-shaped leaflets. Steins weak, branched from one 



to two feet high : flowers yellow, eight or nine together, on long 

 stalks, An excellent pasture plant. Perennial : flowers in July 

 and August: grows in meadows and pastures : common. Eng. Lot. 

 vol. x. pi. 670. Eng. Fl vol. iii. p. 276. 1043. 



5. L.sylvestris. Narrow-leaved Everlasting -pea. Tendrils branch- 

 ed, each with two sword-shaped leaflets ; stem, winged. Stems 



climbing, three or four feet long : flowers on axillar stalks : corolla 

 variegated with pale-crimson, blue and green. Perennial : flowers 

 in July and August : grows in thickets and hedges in England, 

 very rare in Scotland. Eng. Bot. vol. xii. pi. 805. Eng. Fl. vol. iii. 

 p. 277. 1044. 



6. L.latifolius. Broad-leaved Everlasting -pea. Tendrils branched, 



