90 XL. LEGUMINOS^. ' [Jofm 



sliort pedicels, or rarely in sliort terminal racemes. Bracts small and very 

 deciduous ; bracteoles none. Ovarv villous. 



• The genus is limited to Australia. It diflers from Fullenaa chiefly in the want of sti- 

 pules and bracteoles, and in most cases in the want of any atrophiole to the see Is. It is, in 

 most eases, readily distinguished from Dillwynia and Lalrobea by therectu'ved, not incurved, 

 margins of the leaves, independently of the seeds. 



Leaves scattered or imperfectly whorled, narrow, with much revolute 

 margins. Calyx usually above \\ lines long. 

 Leaves linear, obtuse or with recurved points. Keel purple. 

 Calyx under 2 lines, the upper lobes falcate or truncate, united 

 above the middle, Plant tomentose, hoary or nearly gla- 

 brous. 



Seeds strophiolatc (western species) 1. A. gracillima. 



Seeds not strophiolate (eastern species) ... ^ ... 2, ^. villosa. 



Calyx nearly 2 lines, the lobes nearly equal. Leaves softly to- 



mcntose * 3. ^. mollis. 



Calyx above 2 lines, the upper lobes united above the middle. 



Flowers axillary , 4. A. FreissiL 



Flowers crowded, in short, terminal, leafless racemes ... 5. A. phi/licoides. 

 Leaves mostly lanceolate and almost acute. 



Branches villous. Flowers large. Keel yellow. Ovary sti- 



pitate " 6. ^. lanigera. 



Branches minutely hoary. Keel purple. Ovary sessile . . 7. ^, genisioides. 

 Leaves all or almost all in whorls of 3, folded lengthwise or broad 



with recurved margins. Calyx small, membrauous. Pedicels 



recurved. 



Leaves lanceolate, folded lengthwise and prominently keeled . , 8. A, carinata. 

 Leaves oval-oblong or broadly lanceolate, not reticulate, silky- 



villous wheu young. Ovary sessile 9. A. passerinoides. 



Leaves cordate-ovate, sharp pointed. Stipules none. Ovary sti- 



Pi'^^te , . . . 10. ^. cordlfoUa, 



S])ha;rolohium eucliilus has almost the technical characters of Aotus, but the lax foliage 

 and long-pcdicellate flowers give it a different habit, and the calyx is quite distinct. 



Aotas Warthii, Kegel, in Bot. Zeit. 1851, 596, is described with the leaves channelled 

 above and convex underneath, and is therefore probably a Dillwynia, perhaps D.fiori' 

 bun da. 



1-1 



' ' 1. A. gracillima, MeUm. in PI Preiss. i. 59. A tall shrub, with 

 elongated brandies, closely reseml)]ing the more slender forms of A. villosa, 

 the branches hoary or slightly tomentcse. Leaves nnrrow-linear, obtuse, 

 3 to 6 lines long, with closely revolute marfjins, nearly glabrous above, hoary 

 or tomentose underneath. Flowers rather smnller than in A. villosa, bright- 

 coloured and very numerous, forming long dense leafy racemes below the 

 ends of the branches. Calyx tomentose, scarcely 1^ lines long; the lobes ra- 

 ther shorter than the tube, the 2 upper ones broader and more united. 

 Petals fully twice as long as the calyx. Pod rather smaller than in A. viUosa. 

 Seeds (only seen in A. Cunningham's specimens) like those of A. villosa, 

 • f xcept that they have a deeply-lobed membranous strophiole.— Bot. Mag. t. 

 4146 ; A. lutennedia, Meissn. in PL Preiss. i. 60. 



"W. Australia. King George's Sonnd and adjoining districts, A. CunnhigUm, Bax^ 

 t€T and others, Frei^s, n^MSu 864, and 871 ; Swan River, Bnmmond, \st Coll. n. ?46. 

 Were it not for the stroplnole of the seeds, which remains to be verified on other specimens, 

 I should have considered this as a slender variety of -d. villom, 



t^ 2. A, villosa, Sm.in A^in. Bot, i. .^04 nyu7 ;« r>-/.H.« r;«^ finr^^ n. 249. 



