142 THE FLORA OF THE NORTHERN TERRITORY 



26. INDIGOFERA, Linn. 



{Sphaeridiophorum, Desv.) 



Calyx-lobes very much longer than the very short tube. Herbs or 

 undershxubs (except I. rugosa). 



Leaves simple, nearly sessile. 



Leaves hnear or narrow-oblong. 



Flowers in short sessile spikes. Pod globular, 1 -seeded. — 7. 



I. linifolia. 

 Flowers in long pedunculate racemes. Pod linear, several- 

 seeded. — 5. I. haplophylla. 

 Leaves cordate-ovate. Pod short usually 2-seeded. — 3. I. 

 cordifolia. 

 Leaflets single, ovate, rugose, very white, on a petiole of 3 to 4 



lines. — 10. I. rugosa. 

 Leaves pinnately 3-foliolate. Flowers scarcely 2 lines long, in very 



short sessile spikes. — 12. I. trita. 

 Leaves pinnate with several pairs of leaflets. 



Pod short. Ovules and seeds 2. Spikes short dense and sessile. 



— 4. I. enneaphylla. 

 Pod Unear. Ovules and seeds several. 

 Calyx much shorter than the petals. 



Flowers rather crowded in sessile racemes. Pod 1 to 

 1| in. long, with an incurved point. — 9. I. parvi- 

 fiora. 

 Flowers very small, distant, in slender racemes. Pod 

 I to |-in. long, straight, very slender, often viscid. — 

 13. I. viscosa. 

 Calyx-lobes about as long as the petals. Racemes loose. 

 Plant hirsute with spreading hairs. — 6. I. hirsuta. 

 Calyx-teeth all very short, the lower ones rarely rather longer than the 

 tube. Shrubs. 



Leaflet 1, articulate on the petiole. 



Leaflet broadly obovate, with parallel prominent pinnate veins. 



— 8. I. monophylla. 

 Leaflet ovate or oval-oblong, reticulate and very rugose. — 10. I. 

 rugosa. 

 Leaflets usually 5, obovate or orbicular. 



Calyx-teeth shorter than the tube. — 11 . I. saxicola. 

 Calyx-teeth longer than the tube. — 1. I. boviperda. 

 Leaflets 9 or more. 2. I. brevidens. 



1. I. boviperda Morrison. (Joum. of Botany, L. 166, May, 1912). — Lander 

 Creek, about 21 degrees S. lat., and 132 degrees E. long., G. F. Hill (No 374) 

 25/6/11. 



Recorded. Ashburton River, N.W. Austraha, Stuart Carey, 1883. 



The plant poisoned 120 cattle in one night at the Ashburton River in 1905, 

 and some settlers recognised it as a reputed poison plant seen by them also in 

 the Kimberley District, further North. The area of its distribution is, there- 

 fore, very extensive. 



2. I. brevidens, Benth.—T^.K., G. F. Hill, 1911 ; M'Douall Range and up 

 ±0 lat. 20 degrees 20 minutes, M'Douall Stuart's Expedition. 



3. I. cordifolia, Heyne. — Port Essington, Armstrong. 



