120 THE FLOEA OF THE NOBTHEBN TEEEITORY. 



Ovules 2 or more (1 in Indigofera Unifolia). Anthers tipped with a small 

 gland. Pod2-valved. Herbs or shrubs, sometimes glandular. Leaflets entire. 

 Hairs often appressed and attached by the centre. — 26. Indigofera. 

 Ovules 2 or more. Anthers without glands. 



Racemes or flowers terminal or leaf -opposed. Herbs or shrubs. 



Stamens all united in a sheath, open on the upper side. — 28. 



Ptychosema. 

 Upper stamen usually free, or all united in a closed tube. — 29. 

 Tephrosia. 



Racemes or flowers axillary. Herbs or shrubs. 



Style not bearded (rarely a small tuft of hairs on the stigma in 

 Tephrosia). 



Pod linear, rarely short and oblong ; valves thin or cori- 

 aceous, flat or convex when ripe. — 29. Tephrosia. 



Pod long, narrow and thick, the endocarp continuous with 

 the transverse partitions between the seeds. — 30. 

 Sesbania. 



Style bearded under the stigma. Pod turgid, membranous or 

 coriaceous. 



Petals acuminate. — 31. Clianthus. 

 Petals obtuse. — 32. Swainsona. 



Tribe V. Hedysarece. — ^Pod separating into 1-seeded articles, or the whole 

 pod 1-seeded and indehiscent (except Pycnospora and rarely Desmodium). 

 Pohage and inflorescence, in the Australian genera, either of Galegese or 

 Phaseolese. 



Leaves pinnate with several leaflets, as in Galegeae. Stamens united in a 

 sheath, or in 2 bundles or 6 each. — 33. ^schynomene. 



Leaves with 2 leaflets. Bracteoles large, enclosing the flowers. Stamens 

 all united. Anthers alternately long and short. — 34. Zomia. 



Leaves pinnately S-foholate or 1-foliolate, with stipellse as in Phaseolese. 

 Stipules usually dry. 



Pod flat, not folded. 35. Desmodium. 



Pod turgid, not articulate, but with transverse lines. — 36. Pycnos- 

 pora. 

 Pod-articles folded over each other within the calyx. 

 Calyx-tube small, lobes subulate. — 38. Uraria. 

 Calyx campanulate, enlarged after flowering, with short broad 

 lobes. — 39. Lourea. 



Pod-articles globular, oblong-terete, or slightly flattened but thick. 

 Calyx narrow, dry, deeply lobed. Leaves 1-foliolate. — 37. 

 Pabricia. 



Tribe VI. Phaseolem. — Herbs usually twining or prostrate, rarely erect 

 or shrubby at the base, very rarely trees. Leaves pinnately 3-foliolate or 1- 

 foUolate, rarely 5 or 7-foliolate, with stipellse (digitate in a very few species, 

 stipellse minute or none in Rhynchosia and its allies). Upper stamen usually 

 free, at least at the base or all but the base. Anthers uniform or very nearly so 

 (except in Mucuna). Pod not articulate, 2-valved. 



Flowers in axillary short clusters with persistent striate bracts and bracte- 

 oles. Seeds not strophiolate. 



Calyx tubular. — 43. Clitoria. 



Calyx campanulate. — 55. Dohchos. 



