LEGUMINOS^E. (PULSE FAMILT.) 89 



Synopsis. 



TRIBE I. LOTE.33. Stamens monadelphous or diadelphous (9 & 1) Pod tOMinuous 

 and 1-celled, or sometimes 2-celled lengthwise. Cotyledons becoming green leaves in 

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

 its climbing stems.) 



Subtribe 1. GENISTE^E. Stamens monadelphous : anthers of 2 forms. Leaves simple or 



paliuately compound. 



I LUP1NUS. Calyx deeply 2-lipped. Keel scythe-shaped. Pod flattish. Leaves palmate 

 S CROTALARIA. Calyx 5-lobed. Keel scythe-shaped. Pod inflated. 



8. GENISTA. Calyx somewhat 2-lipped. Keel straight. Pod flat. Leaves simple. 



Subtribe 2. TRIFOLIE^E. Stamens diadelphous (9 & 1) : anthers uniform. Leaves pahnately 

 or rarely pinnately 3 - 5-foliolate ; the earliest ones in germination after the cotyledon* 

 alternate ! Herbs or scarcely shrubby plants. 



4. TRIFOLTUM. Flowers capitate. Pods membranaceous, 1 - 6-seeded. 



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



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



Subt'ibe 3. PSORALE^E. Stamens monadelphous or diadelphous. Pod 1-seeded and inde- 

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

 or glands. Earliest true leaves opposite. 



7. PSORALF-A. Corolla truly papilionaceous. Stamens 10, more or less diadelphous, half of 



the anthers often imperfect. 



V DALEA. Corolla imperfectly papilionaceous. Stamens 9 or 10, monadelphous ; the cleft 

 ti.bo of filaments bearing 4 of the 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 summit. 



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



phous at the base. 



Subtribe 4. GALEGE.S:. Stamens mostly diadelphous. Pod several-seeded, at length 2-valved., 

 1-celled. Leaves pinnate. 



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



edge. Trees or shrubs : leaflets stipellate. 



12. WISTARIA. Wings free from the falcate keel. Fod tumid, rnarginless. Woody twiners . 



leaflets not stipellate. 



13. TEPUKOSTA. Wings cohering with the keel. Pod flat, marginless. Herbs. 



Subtribe 5. ASTRAOALE^. Stamens diadelphous. Pod 2-celled lengthwise by the iutro- 

 flexiou 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 II. HEOYSARE^E. Stamens monadelpnous or diadelphous. Pod (lomep.t, 

 transversely 2 -several-jointed, the reticulated 1 -seeded joints remaining closed, or some- 

 times reduced to one such joint. 



* Leaves pinnate, with several leaflets. 



15. ^SCHYNOMENE. Stamens equally diadelphous (5 & 5). Calyx 2-lipped. Pod several- 



jointed. 

 16 HEDYSARUM. Stamens unequally diadelphcus (9 & 1). Calyx 5-cleft Pod several 



jointed. 



* * Leaves pinnately 3-foliolate. 

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



Pod several -jointed. Flowers all of one sort and complete. Le;i<leli (stipellate. 



