290 XXVI. ZYGOPHYLLE/E. [Tribnlus, 



' N- Australia, Nichol fiay, JP. Gregory. 



8. T. pentandrus, Benth. A slender, prostrate, brandling ann^inl, 

 often attaining 1 ft. in length, more or less liairy- Leaves all alttTiiate, with 



2 pairs of oblong-lanceolate leaflets, the terminal ones 4 to 8 lines long, the 

 lower pair much smaller, usually not half the size. Flowers small, on slendt^r 

 pedicels. Petals oblong. Stamens usually 5 wath globular or ovoid perfect 

 anthers,and 5 small ^vith imperfect capitate anthers, or entirely wanting. Ovules 

 solitary in each cell of the ovaiy. Pruit pyramidal, 1 to 1^ lines long, with 2 

 small tubercles at the base of each coccus. — Tribulopis pentandra^ R. Br. in 

 App. Sturt, Exped. 7 ; I". Muell. Fragm.i. 48. 



N- Australia. Victoria river and Sea Kange, F, Mueller ; islands of the Gulf of Car- 

 pentaria, R, Brown, 



9. T. bicolor, F, Muell PL Vict. i. 99. A prostrate annual, often 

 attaining 1 ft. or more, pubescent or hairy. Leaves all alternate, with 2 or 3 

 pairs of rather broad leaflets, 3 to 4 lines long, nearly equal, the lowest pair 

 usually close to the stem, glabrous except the eiliate margins. Flowers smallj 

 on rather short pedicels. Petals oblong, red at the base according to F. 

 Mueller, but the difference of colour does not show in the dried state. Sta- 

 mens usually 5 with small short anthers, and 5 with linear anthers, some of them 

 occasionally imperfect. Ovules solitary in each cell of the ovary. Fruit 

 pyranudal, about 3 lines long, ]Hibescent, with 2 pairs of tubercles below the 

 middle of each coccus. — Tribulopis bicolor, F. Muell. Fragm. i. 47- 



N- Australia. Sandy shores of the Victoria river, F. Mueller, This species appears 

 to me to be much more nearly allied to T, Sjlandri than the T, angust If alius. 



10. T. Solandri, F, MiwU. FL Fiat, i. 99 (partly). An annual, with 

 prostrate or ascending stems, pubescent or nearly glabrous. Leaves alter- 

 nate ; leaflets usually 3 pairs, rarely 2 pairs, obliquely ovate or oblong-falcate, 



3 to G Ihies long, the lowest pair distant, from the stem and nearly of the size 

 of the others, all glabrous except the eiliate margins or slightly hairy, those 



of the upper leaves sometimes narrower and lanceolate. Flowers small. 

 Stamens usually all perfect, with suuiU anthers. Fruit pyramidal, about 3 

 lines long, glabrous or slightly tomcntose, with 2 pairs ' of prominent 

 refl'exed tubercles below the midd'le of each coccus. — Tribulopis Solandri, R* 

 Br. in App. Sturt, Exp. 7. 



, Australia. Victoria river ami Gilbert river, F. Mueller. 

 Queensland. Endeavour river, I^^hI.s; Lizard island, M'GHlivray. 



11. T. angnstifoli-as, Benth. An annual or according to some speci- 

 mens forming a perennial rootstock, with procumbent, ascending, or erect 

 stems, glabrous or silky-pubescent. Leaves all alteniate; leaflets 4 or 5 

 pairs or sometimes more, linear, attaining 1 in. in length, more or less silky- 

 pubescent. Flowers much larger than in the other spoiies, the petals usually 

 exceedinj; \ in. Stamens all perfect, with small anthers. Fruit 3 lines long, 

 besides the rigid persistent style which is abo\it as long, with 2 minute tuber- 

 cles at the base of each coccus.— Trilmhpi.s ongnstffoUay E. Br. in App. 

 Sturt, Exped. 7 ; Tribulopis Solandri, F. Muell. Fragm. i. 47 (pailly) ; ^'''■^'- 

 bulus Solundriy var. angustifoUa, F. Muell. PL Vict. i. 99. 



