THE FLOKA OF THE NOETHBEN TERRITORY. 155 



Cocci rounded at the back, without angular or winged edges. 

 Cocci mth 2 or 4 prickles, rarely minute or deficient. 



Leaves almost aU opposite. Ovules 3 or 4 in each cell. 



Annual. Flowers small. Petals about J-in. — 10. T. 



terrestris. 

 Perennial. Flowers large. Petals about |-in. — 3. T. 

 cistoides. 

 Lower leaves alternate. Ovules 2 in each cell. Flowers 

 large. — 9. T. ranuncuUflorus. 

 Cocci covered with numerous nearly equal prickles. — 5. T. 

 hystrix. 

 Cocci with prominent almost winged angles, and two prickles on the 



back between them. — 6. T. macrocarpus. 

 Cocci broadly winged at the angles, without prickles. 



Plant glabrous except the inside of the sepals. Cocci smooth. — 

 8. T. platypterus. 



Plant hirsute. Cocci strongly reticulate on the back and sides. 

 — 4. T. hirsutus. 

 Leaves aU alternate. Glands of the disk prominent. Ovules solitary. 

 Fruit pyramidal, the cocci with 2 or 4 tubercles or small prickles below the 

 middle. (Tribulopis, R. Br.). 



Leaflets 2 pairs, the lowest much smaller. Perfect stamens, usually 



5. — 7. T. pentandrus. 

 Leaflets about 3 pairs, ovate, the lowest not far from the stem. 



Anthers 5 short, 5 oblong or linear. — 2. T. bicolor. 

 Leaflets 3 to 6 pairs, ovate, lanceolate or linear. Anthers 10 nearly 

 similar. Flowers small or large. — 1. T. angustitohus. 



1. T. angustif alius, Benth. {T. Solandri, F.v. M.). — Borroloola, G. F. 

 HiU (No. 691, 696, 711a), 14/12/1911, and 13/1/1912. 



Recorded. Victoria and Gilbert Rivers, F. v. Mueller ; N.W. Coast, 

 Bynoe ; Islands of the Gulf of Carpentaria, R. -Brown, Henne. 



2. T. bicolor, F. v. M. — Sandy shores of the Victoria River, F. v. Mueller. 



3. T. cistoides, Linn. — Observation Island, Gulf of Carpentaria, G. F. 

 Hill(No. 635), 21/10/1911. 



Recorded. Gulf of Carpentaria, R. Brown ; Port Essington, Armstrong ; 

 Albert River and Sweers Island, Henne. 



This plant is a tropical cosmopolitan. In the last printed census of Aus- 

 trahan Plants the name was omitted by Baron v. Mueller, but no reason given. 

 It is undoubtedly native to North Austraha and Queensland, and possibly 

 also to Northern New South Wales. Poisonous according to Greshoff, principle 

 unknown. 



4. Ik hirsutiis, Benth. — ^Nichol Bay, F. Gregory. 



5. T. hystrix, R. Sr.— 60 miles N.E. of Camp II., G. F. Hill (No. 280), 

 7/6/1911. 



Recorded. N.W. Coast, A. Cunningham ; on sandy soil, in the interior 

 from Nichol Bay, F. Gregory. 



Note on Herbarium specimen from Mt. Lyndhurst, collected by Max 

 Koch. " Considered to be valuable fodder. Aboriginal name in the Dieyerie 

 dialect, ' Koola.' " The hairiness, however, and the prickles would consider- 

 ably lessen its fodder value. 



6. T. macrocarptis, F. v. M. — ^In the interior, from Nichol Bay, F. Gregory. 



