LEGUMINOSiE. (rULSE FAMILY.) 89 



Synopsis. 



Tribe I. IjOTK^. Stamens monadelphouB or diadelphous (9 & 1). Pod continuous 

 and 1-celled, or sometimes 2-celled lengthwise. Gotyledone becoming green leaves In 

 germination. — Not twining, climbing, nor tendril-bearing. (Wistaria is sm exception in 

 its climbing sterna.) 



Subtribe 1. Genibte.£. Stamens monadelphous : anthers of 2 forms. Leaves simple or 

 palmately compound. 



1. LUPINUS. Calyx deeply 2-lipped. Keel scythe-shaped. Pod flattish. Leaves palmate. 



2. CKOTALARIA. Calyx 5-lobed. Keel scythe-shaped. Pod Inflated. 



5. QENISTA. Calyx somewhat 2-Upped. Keel straight. Pod flat. Leaves simple. 



Subtribe 2 Trifolis^. Stamens diadelphous (9 & 1) : anthers uniform. Leaves palmately 

 or rarely pinnately 3 -6-foUolate ; the earliest ones in germination after the cotyledons 

 alternate ! 7— Herbs or scarcely shrubby plants. 

 4. TRTFOLIUM. Plowers capitate. Pods membranaceous, 1 - 6-Beeded. 



6. MELILOTUS. Plowers racemed. Pods coriaceous, wrinkled, 1 - 2-seeded. 



6. MEDICAGO. Flowers racemed or spiked. Pods curved or coiled. 



Subtribe S. Psoralen. Stamens monadelphous or diadelphous. Pod l-seeded and inde- 

 hiscent, mostly included In the calyx, rarely 2-seeded. Plants sprinkled with dark dots 

 or glands. Earliest true leaves opposite. 



7. PSOK ALEA. Corolla truly papilionaceous. Stamens 10, more or l^s diadelphous, half of 



the anthers often imperfect. 



8. SALEA. Corolla imperfectly papilionaceous. Stamens 9 or 10, monadolphoos ; the cleft 



tube of filaments bearing 4 of tlie petals about its middle. 



9. PETALOSTEMON. Corolla scarcely at all papilionaceous. Stamens 5, monadelphous ; 



the cleft tube of filaments bearing 4 of the petals on its sunuuit. 



10. AMORFHA. Corolla consisting of only one petal! the standard. Stamens 10, monadel- 



phous at the base. 



Subbibe 4. Galeqil£. Stamens mostly diadelphous. Pod several-seeded, at length 2-valved, 

 1-ceUed. Leaves pinnate. 



11. ROBINIA. Wings of the corolla firee from the keel. Pod flat and thin, marked on one 



edge. Trees or shrubs : leaflets stipellate. 



12. WISTARIA. Wings free from the falcate keeL Pod tumid, marginless. Woody twiners : 



leaflets not stipellate. 



13. TEPHROSIA. Wings cohering with the keel. Pod flat, mar^nless. Herbs. 



Subtribe 5. AsTRAOALEiE. Stamens diadelphous. Pod 2-celled lengthwise by the intro- 

 flexion of the dorsal suture, or 1-celled with one or the other suture somewhat turned 

 inward. Leaves pinnate. 



14. ASTRAGALUS. Keel not pointed. Herbs, or low scarcely woody plants. 



Tribe JI. HEDYSARE.^. Stamens monadelphous or diadelphous. Pod (loment) 

 transversely 2- several-jointed, the reticulated l-seeded joints remaining closed, or some- 

 tames reduced to one such joint. 



* Leaves pinnate, with several leaflets. 

 IB. .ffiSCHYNOMENB. Stamens equally diadelphous (B & 6). Calyx 2-lipped. Pod several- 

 jointed. 



16. HEBTSARUM. Stamens unequally diadelphous (9 & 1). Calyx 5-cleft. Pod several- 



jointed* 



* * Leaves pinnately 3-foliolate. 



17. DESMODIUM. Stamens diadelphous (9 & 1) or monadelphous below. Calyx 2-lipp«(l. 



Pod several-jointed. Flowers all of one sort and complete. Leaflets stipellate. 

 8* 



