25. LEGUMINOSiE. 71 



straight point. Pod imperfectly 2-celled, cells formed by the 

 inflexed margin of the upper suture. 



11. Astragalus. Cal. with 6 teeth. Keel obtuse. Pods 

 imperfectly 2-celled, cells formed by the inflexed margin of 

 the lower suture. 



Tr. II. VICIE^. Pod continuous. Stam. diadelphous. Coty- 

 ledons remaining under ground. L. abruptly pinnate or 

 apparently simple. 



* Tube of stam. very obliquely truncate. 



12. ViciA. Cal. 6-fid or 5-toothed. Stylefiliform, its upper 

 part hairy all over, or bearded on the under side and at the 

 same time hairy or glabrous. Pods 1-celled, 2-valved. 



** Tube of stam. transversely truncate. 



13. Lathyrus. Cal. 5-fld or .5-toothed. Style dilated up- 

 wards, plane on the upper side, hairy beneath the stigma. 

 Pods 1-celled, 2-valved. 



Tr. III. HEDYSABEM. Pod divided transversely into 1- 

 seeded joints, h. pinnate with an odd one. 



14. Ornithopus. Cal. elongated, tubular, with 5 nearly 

 equal teeth, 2 upper ones slightly combined and converging. 

 Keel obtuse. Pod elongated, compressed, of many \-seeded 

 indehiscent joints equally narrowed at both sides at the join- 

 ings. — Apex of the common peduncles bearing a small pin- 

 nate leaf just below the flowers. 



15. Arthrolobium. Cal. elongated, tubular, with 6 nearly 

 equal teeth, 2 upper ones combined up to their middle and 

 straight. Keel obtuse. Pod elongated, cylindrical, of many 

 l-seedediniehiscent joints scarcely narrowed at thejoinings. 

 — No leaf at the apex of the peduncles. 



16. HiPPOCREPis. Cal. short, campanulate, with 5 nearly 

 equal teeth, 2 upper ones combined up to their middle. 

 Keel narrowed into a beak. Pod elongated, compressed, of 

 many 1-seeded crescent-shaped joints, so that each pod has 

 many notches on one side. 



17. Onobrychis. Cal. with 5 nearly equal subulate teeth. 

 Keel obliquely truncate, longer than the wings. Pod 1-celled, 

 compressed, indehiscent, I- seeded, upper suture straight, 

 lower curved toothed winged or crested. 



