156 THE FLORA OF THE NORTHBEN TERRITORY. 



7. T. pentandrus, Benth. — Victoria River, and Sea Range, F. v. IVTueller ; 

 Islands of the Gulf of Carpentaria, R. Brown. 



8. T. platypterus, Benth. — ^Hammersley Range, F. Gregory. 



9. T. ranunculiflorus, F. v. M. — Dry sandy pastures on the Upper Vic- 

 toria River, P. v. Mueller. 



10. T. terrestris, Linn. — Sturt's Creek, F. v. Mueller. 

 Fruit injurious to the feet of sheep. 



Nitraria Schoheri, L. ; Zygophyllum glaucescens, F. v. M. ; Z. iodo- 

 carpum, F. v. M. ; Z. prismatothecum, F. v. M. ; Z. ammophilum, F. v. ill. • 

 Z. fruticulosum, D. C. ; recorded from North Austraha in National Herbarium 

 Census. 



RUTACEiE. 



Tribe I. — Boronieae. — Shrubs, very rarely arborescent. Leaves simple, 

 3-foliolate or rarely pinnate, with opposite small leaflets. Ovary lobed. Fruit 

 separating into distinct, 2-valved cocci. Endocarp separating elastically. 

 Seeds albuminous. Embryo usually terete. 



Leaves opposite simple or compound. — 2. Boronia. 



Leaves alternate, simple. — 3. Rossittia. 



Tribe II. — Xanthoxylese. — Trees or shrubs. Leaves pinnate or 3-foholate 

 with opposite leaflets, or 1-foholate, the leaflets usually large. Ovary lobed. 

 Fruit separating into distinct 2-valved cocci. Endocarp persistent, or separat- 

 ing elastically. Seeds with or without albumen. Cotyledons usually flattened 

 and broader than radicle. — 1. Xanthoxylum. 



Tribe III. — Aurantieae. — Trees or shrubs. Leaves pinnate, with usually 

 alternate leaflets, or 1-foholate or simple. Stamens twice as many as petals 

 or more. Ovary not lobed. Fruit indehiscent. Seeds without albumen. 

 'Leaves all or mostly pinnate. No thorns. 



Petals valvate or nearly so. C otyledons much folded. Flowers 



smaU. — 4. Micromelum. 

 Petals imbricate, erect. Cotyledons flat. Flowers large. — 

 5. Murraya. 

 Leaves aU simple or 1-foholate, coriaceous. Thorns axillary. — 6. Ata- 

 lantia. 



1. XANTHOXYLUM, Linn. 



1. X. parviflorum, Benth. — Goulburn Island, A. Cunningham ; Port 

 Essington, Armstrong ; Islands of the Gulf of Carpentaria, R. Brown. 



2. BORONIA, Sm. 1798. 



(Cyanofhamnus, Lindl. 1839.) 



The fragrant oil of many might be used in perfumery, and although none 

 are so strongly scented as the West Australian B. megastigma, or the Victorian 

 B. pinnata, they might improve under cultivation. 



Sepals as long as or longer than the petals, enclosing them in the bud. 

 (Plants tomentose or pubescent.) 



Sepals longer than the petals. 



Leaves all simple. Sepals 5 to 6 lines. — 4. B. grandisepala. 

 Leaves mostly or all pinnate. Sepals 3 to 4 hnes. — 2. B. 

 artemisisefolia. 



