128 THE rLOEA OF THE NOETHEEN TEEEITOEY. 



Pod uncertain. Smaller veins of phyllodia anastomosing to fine network. — 

 52, A. retinervis. 



D. Dimidiatce. — Phyllodia large, broad, very oblique or falcate, with 3 

 or more distant prominent nerves, more or less confluent at or near the lower 

 margin at the base, pinnately net- veined between them. 

 Branchlets very acutely angular or almost winged. 



Glabrous and glaucous, spikes pedunculate. Flowers mostly 



4-merous. — 32. A. latifolia. 

 Hoary or silky-pubescent, spikes sessile. Plowers mostly 5-merous. — 

 27. A. holosericea. 

 Branchlets terete or scarcely angular. 



Spikes 1 to 2 in. long. Flowers glabrous. (Erect shrub) — 

 17 A. dimidiata. 

 , Spikes scarcely |^-in. long, dense. Flowers densely pubescent. 

 Stem prostrate or diffuse. — 28. A. humifusa. 



Series IX. GummifercB. — Leaves bipinnate. Stipules of some or all 

 the leaves persistent and spinescent. Flower-heads globular, on soUtary or 

 clustered simple peduncles. 



Bracts small, close under the flower-heads. 



Pinnae 4 to 6 pairs. Leaflets small, 10 to 20 pairs. Pod thick, cylin- 

 drical or spindle-shaped, indehiscent, pithy between the seeds. — 

 20. A. Farnesiana. 

 Pinnae 1 or 2 pairs. Leaflets small, 8 to 12 pairs. Pod narrow- 

 linear, 2-valved. — 64. A. suberosa. 

 Bracts forming a Uttle 4-lobed ring round the middle of the peduncle. 



Pinnae 15 to 25 pairs. Leaflets scarcely 1 line long. Flowers 4- 

 merous. Pod coriaceous ; valves slightly convex, striate length- 

 wise. — 6. A. Bidwilh. 

 Pinnae 3 to 10 pairs. Leaflets 3 to 4 lines long. Flowers 5-merous — - 

 43. A. pallida. 



1 . A. amentifera. F. v. M. — Upper Victoria River, F. v. Mueller. 



2. A. arida, Benth. — Parched desert shores of Cambridge Gulf, N.W. 

 Coast, A. Cunningham. 



3. A. aulacocarpa, A. Cunn {var. viacrocarpa) . — Stony Creek, Borroloola, 

 G. F. HiU (No. 670), 8/11/1911. 



Hickory Wattle. A useful cabinet wood. 



4. A. auriculiformis, A. Cunn. — S. Goulburn Island, A. Cunningham. 



5. A. Baueri, Benth. — N. Coast, R. Brown. 



6. A. Bidwilli, Benth. — ^Whitsunday and Gloster Island?, Henne. 



7. A. binervata, D.G. — Table Island, Upper Roper River. 



8. A. bivenosa, D. C. — N.W. Coast, Admiralty Bay, Baudin's Expedition ; 

 Bay of Rest and Dampier's Archipelago, A. Cunningham ; Depuech Island, 

 Bynoe ; Hearson Island, Nichol Bay, F. Gregory's Expedition. 



9. A. bossiaeoides, A. Cunn. — Liverpool River, N.W. Coast. A. Cunning 

 ham. 



10. A. Bynoeana, Benth. — ^N.W. Coast, Bynoe ; Gulf of Carpentaria, 

 F. v. Mueller. 



11. A. conspersa, F. v. M. — Islands of the Gulf of Carpentaria, R. Brown ; 

 and rocky sandy districts of the adjoining mainland. Upper Roper and Limmen- 

 Bight Rivers, F. v. Mueller ; Sterculia Creek, Leichhardt. 



