« 



38 XL. legumfnosjE. ' [Mirbelia. 



Pod ovate, acuminate, aljoiit 4 lines long, the ventral or axillary face mucli 

 flattened, the hack more or less furrowed, divided longitudinally as in other 

 MirbeUas, hut the endocarp scarcely separating. — Daviesia rmnulom, Benth. 

 in Lindl. Swan Eiv. App. 14 ; Chorizema daviesioides^ Meissn. in Pi. Preiss. 

 i. 34 ; Mirldia aphylla, F. Muell. Fragm. iv. 11. 



\V. Australia. Swan Kiver, Dmmmond, \st ColL and n, 190; Gardner's River, 



Maxwell ; iMurchison river, OldJiehL 



Var. (?) riglda. Specimeus i« fruit, with few stout but frequently spinescent branches. 

 Pod oblong, scarcely furrowed on the back. — Dirk Hartog's Island, Milne. 



16. M. (?) oxyclada, I. MuelL Fragm, iv. 12- A rigid leafless shrub, 



resembling M, daviesioides, but more slender, the branciilets usually spines- 

 cent. Leaves replaced by minute scales. Flowers unknown. Fruiting pe- 

 dicels short, solitary or in pairs along the branches. Pod shortly stipitate, 

 ovoid, turgid, but with prominent sutures and acuminate with the rigid persis- 

 tent base of the style, 2 to 3 lines long, imperfectly divided into 2 cells by an 

 incomplete dissepiment, the sutures persisting as a replum after the valves 

 have fallen. Seed 1 in each cell, not strophiolate. — Jackmnia viuiinaUs, A. 

 ('unn.; Benth, in Ann. Wien. Mus. ii, 75; Ojcydadiian semiseptatHm,"F. 

 Muell. in Hook. Kew Journ. ix. 20, and Fragm. i. 168. 



Iff. Australia, J, Cunningliam ; sandstone table-land at the head of Victoria river, and 

 in Arnhera's Land, I\ Mueller, • ' 



6. ISOTROPIS, Benth. 



Calyx deeply lobed, the 2 upper lobes united nearly to the top. Petals 

 clawed. Standard orbicular, emarginate, longer than the wings; wings obo- 

 vate, somewhat falcate ; keel incurved, nearly as long as the wings. Stamens 

 free. Ovary sessile, with numerous ovules ; style incurved, filiform, with 

 a minute terminal stigma. Pod oblong linear or lanceolate, acute, more or 



less turgid. Seeds not strophiolate. — Herbs or undershrubs, with diffuse or 

 ascending stems. Tjf^aves alternate, simple or unifoliolate, herbaceous.' Sti- 

 pules linear-falcate or minute, Flow^ers solitary, on axillary peduncles, or 

 forming a loose terminal raceme. Ovary villous. 



The genus is exclusively Australian. It is closely allied to Oxylohiian and Chorizena^ 

 differing chiefly in habit, in the dccpcr-cleft calyx, and in the longer pod. 



Leaves simple, sessile, continuous with the petiole. 



Leaves obtuse, truncate or dilated and 2-lobcd. Pedicels much 



longer than the calyx 1, /. striata. 



Leaves few, cuneatc acute or none. Flowers loosely racemose, the 



pedicels shorter or scarcely longer than flic calyx . , . . 2, 7. Brummondii. 

 Leaves of 1 leaflet, articulate on the petiole. 



Calyx glabrous, 4 to 5 lines long. Racemes terminal, leafless. 



Stcni-lcaves cuueate-ohlong or linear-obtuse • • 3- I.juncea, 



Calyx tomentose, 4 lines long. Racemes terminal, leafless. Leaves 



ovate or oblong, veiy obtuse , . 4, 7. atropurpurea. 



Calyx pubescent, 3 hnes long. Racemes mostly leaf-opposed, leaf- 

 less. Stem-leaves lanceolate, acute 5. hfillcaulis. 



Calyx pubescent, 2 Hues long. Pedicels short, axillary or leaf- 

 opposed. Stem-leaves linear, flat^ 6. /. parvijlora. 



Calyx tomentose, 3 lines long. Pedicels short, in a short terminal 



raceme or solitary. Steui-kavcs terete, channelled above . . 7. 7. Wheeleri. 



