THE FLORA OF THE NORTHBBN TERRITORY. 251 



Corolla 2-lipped. Stamens 2. 



Bracts amall or not enclosing the flowers. — 8. Justicia. 

 Bracts in two paiis, formiiing an involucre enclosimg one to three 

 flowers. 



Inner involucral bracts broad and appressed. Outer ones spread- 

 ing subulate or spinous. Anithors 2-celled. — 6. Ddcliptera. 



Involucre cylindrical, the two pairs of bracts nearly equal and 

 usually connate, one pair within the other. Anthers 1- 

 celled. — 7. Hypoestee. 



1. EBERMAIERA, Nees. 1832. 



(Erythracanthus, Nees. ; Staurogyne, Wall. ; Striftia, Pohl.) 



1, E. glauca, Nees. — ^Edith Creek and Abraham's Lagoon, GLlruth and 

 Spencer, July- August, 1911. 



E^oorded. Providence Hill and Macadam Range, towards Fitzmaurice 

 River, F. v. MiueUer. 



2. NELSONIA, R. Br. 1810. 



1. N. campestris, R. Br. — Driffield Creek, Darwin, Gilruth and Spencer, 

 July- August, 1911. 



Recorded. Islands of the G-ulf of Carpentaria, R. Brown ; between Vic- 

 toria amd Fitzmaurice Rivers, F. v. Mueller; Albert River, Henne. 



3. HYGROPHILA, R. Br. 1810. 



(Asteracantha, Nees., 1832 ; Bahel, Adans., 1763 ; Eberlea, Riddell, 

 1847 ; Polyechma, Hochst, 1841 ; Tenoria, Dehnh. and Giord., 1829.) 



1. H. angustifoUa, E. Br. (H. salicifolia, Nees.). — Edith Creek, Gilruth 

 and Spencer, July- August, 1911. 



Recorded. Van Diemen's Gulf, N.W. Coast, A. Cunningham ; Victoria 

 River, F. v. Mueller ; Port Essington, Armstrong. 



4. RUELLIA, Plum. 1735. 



(AntheUema, Rafin., 1836 : Aphragmia, Nees., 1841 ; Aubletia, Neck., 

 1790 ; Copioglossa, Miers., 1863 ; Cyrtacanthas, Mart., 1847 ; Dizygandra, 

 Meissn., 1840 ; Fabria, E. Mey., 1843 ; Gymnacanthus, Oerst., 1854 ; Holtzen- 

 dorffia, Klotzseh and Karst., 1847 ; Larysacanthus, Oerst., 1854 ; Neowedia, 

 Schrad., 1821 ; Pattersonia, J. F. Gmel., 1791 ; Scorodoxylun, Nees., 1846 ; 

 Stephanophysum, Pohl., 1831.) 



CoroUa with a slender tube of 1 in., the broader portion or throat half 

 as long. Capsule | in. Flowers pedunculate. 1. R. bnacteata. 



Corolla-tube very shortly slender at the base, the throat much longer. 

 Capsule Jill. long. Flowers nearly sessile. — 2. R. primulacea. 



1. B. bracteata, B. Br. — ^Amhem N. and S. Bay, R. Brown. 



2. B. primvlacea, F. v. M. — Henbury Station. Finke River, G. F Hill 

 (49), 40/3/1911. 



Will thrive under the shade of trees. Mr. Ooghlan reports it as a valu- 

 able plant for stock, especially horses. 



