1876.] Knowledge of the 'Burmese Flora. 223 



Subtrib. 3. ETJCMSALVINIEJE. Leaves usually abruptly bipiunate. Sepals free 

 to the disk, valvate or imbricate. Ovary or ovary-stalk free. 

 x Sepals valvate or nearly so. Trees. 

 Po:cn t ciaa t a. Pod 2-valved, flat, coriaceous. Leaves bipinnate, the leaflets all 

 developed. Unarmed. 



Pahkinsonia. Pod tui'gid-moniliform, indehiscent. Petiole very short, spine-like, 

 with 2 — 4 much elongate pinnas of minute and often quite reduced leaflets. Armed. 

 x x Sepals imbricate. Trees or woody climbers. 

 + Climbers, usually armed. 

 Gssalpinia. Pods not winged, indehiscent or 2-valved, several-seeded. Stigma 

 small. 



Pterolobium. Pods samaroid, indehiscent, the upper end produced into a con- 

 spicuous wing-like appendage, 1 -seeded. Ovary 1-ovuled. 



Mezoneurox. Pod flat, several-seeded, indehiscent, the upper suture extended 

 into a wing. Stigma small. 



+ + Erect trees, not armed. 

 Peltophortjm. Pods flat, several-seeded, indehiscent, both sutures extended into 

 a wing. Stigma peltate. Stamens 10, free. 



Acrocarpus. Pods as in preceding, but indehiscent and winged along the upper 

 suture only. Stigma minute. Petals narrow, almost equal. Stamens 5, free. 



Sicbord. II. Mimosese. Flowers regular, the petals valvate in bud, 

 free or more usually united into a shorter or longer tube. Stamens 

 definite or indefinite, free or connate. 



Trib. 1. MIMOSUaE. Stamens definite, usually 10 or 5, or twice as 

 many as the petals. 



Subtrib. 1. HIHOSEJE VERAE. Anthers gland-tipped or not. Stamens free. 

 Calyx valvate in bud. 



* Anthers gland-tipped. 



x Flowers in spikes or racemes. 

 Adenanthera. Pods 2-valved, often falcate or circinate, transversely chambered 

 between the seeds. Flowers in spikes or racemes. Erect trees. Leaves bipinnate. 



Entada. Pods large, the indehiscent joints separating from the persistent 

 thickened sutures. Flowers in spikes. Tendril-bearing woody climbers. Leaves 

 bipinnate 



x x Flowers in oblong or globose heads. 

 Neptunia. Pods flat, 2-valved, thin coriaceous. Flowers in dense heads. Erect 

 herbs. Leaves bipinnate. 



* * Anthers not gland-tipped. 



x Pods more or less jointed, the joints receding from the persistent 

 sutures. 

 Mimosa. Flowers in dense spikes or heads. Shrubs or herbs, with bipinnate 

 leaves. 



x x Pods continuous, not jointed. 



+ Valves of pod chartaceous or thin coriaceous. 

 Desmanthxjs. Pod flat, narrow, 2-valved. Stigma clavate. Herbs with bipin- 

 nate leaves. Flowers in heads. 



Leuokna. Pods flat, rather broad, 2-valved. Stigma capitate. Shrubs or small 

 trees with bipinnate leaves. Flowers in globose heads. 

 29 



