THE FLOEA OF THE NORTHERN TBERITOEY. 247 



1 . P. humifusum, Delile. — Upper Victoria River, F. v. Mueller. 



2. P Mudleri, 5e7i<4.— Upper Victoria River, F. v. Mueller. 



9. LINDERNIA, All. 



(Vandellia, Linn., 1767 ; Anagalloides, Krock., 1790 ; Diceros, Blume., 

 1826 ; Homemannia, Link, and Otto., 1820 ; Ilyogeton, Endl., 1839 ; Mit- 

 ranthus, Hochst, 1844 ; Pyxidaria, Rupp., 1745 ; Tittmannia, Reichb., 1824 ; 

 Vrisea, Hassk., 1842.) 



Calyx-segments united in a 5-tootlied calyx, at least at the time of 

 flowering. Stems diffuse. Leaves ovate. — 1. L. Crustacea. 

 Calyx-segments separate from the first. 



Leaves ovate, chiefly near the base of the stem. 

 Plant pubescent or hirsute. — 2. L. pubescens. 

 Plant glabrous. — 3. L. scapigera. 

 Leaves linear-subulate, f»w and mostly small. — 4. L. subulata. 



1. L. Crustacea (Benth.), Wett. — ^Islands of the Gulf of Carpentaria, R. 

 Brown. 



2. L. pubescens (Benth.), Wett. — Port Essington, Armstrong. 



3. D. scapigera, R. Br. — Islands of the Gulf of Carpentaria, R. Brown ; 

 near Macadam Range, F. v. Mueller. 



4. L. subulata (Benth.), TFe«.— Newcastle Waters, G. P. ffill (507) 

 ^/8/1911. Specimen with sepals longer than usual and somewhat scabrous. 



Recorded. Elsey's River, F. v. Mueller; Port Essington, Armstrong. 

 L. pyxidaria L. ; recorded from North Australia in iNTafeional Herbarium 

 Census. 



10. ILYSANTHES, Rafin. 

 (Bonnaya , Link, and Otto.) 



Staminodia, acute, with aji angle tooth or lobe near the base. Capsule 

 globular, or broadly ovoid. — 2. I. lobeHoides. 



Staminodia, linear and obtuse, entire. Capsule oblong or linear. — 1. 

 I. clausa. 



1. I. clausa (F. v. M.), With. — Sand Plains, Victoria River, F. v. Mueller. 



2. /. lobelioides, Benth. — Victoria Range, F. v. Mueller. 



11. SCOPARIA, Linn. 1748. (Kreidek, Adans., 1763.) 



1. <Sf. dulcis, Linn. 1748. — ^Ranges near Western Creek, G. F. Hill (768), 

 15/2/1912. 



Recorded. Gulf of Carpentaria, F. v. Mueller. 



A common tropical weed, probably of American origin. 



12. CENTRANTHERA, R. Br. 



1. C. hispida, R. Br. — ^Alluvial flats near Fish River, Glenelg district, 

 N.W. Coast, Marten ; Victoria River and moist grassy flats, Arnhem's Land' 

 F. V. M. 



13. BUECHNERA, Roth. 1821. 



(Buchnera, Linn., 1737 ; Bonnetia, Neck., 1790 ; Chytra, Gaertn., 1805 ; 

 McaUa, Rafin., 1736 ; Piripea, Aubl., 1775 ; Striga, Campuleia.) 



Flowers in short dense 4-sided spikes, the imbricate bracts very broad 

 and as long as the calyx. — 4. B. tetragona. 



