106 THE FLORA or THE NORTHERN TERRITORY. 



1. T. crystallina, Fa/iZ.— Lat. 19 deg., 5 min., N.T. Survey, G. F. Hill. 

 {No. 426), 4/7/1911. 



Henbury Station, Finke River, G. F. Hill (No. 41a), 7/5/1911. 

 Lower Victoria River, F. v. Mueller ; in the interior, M'Douall Stuart. 



2. T. decandra, Linn. — N.W. Coast, A. Cunningham, Bynoe. 



3. T. oxycalyptra, F. v. M. — Start's Creek, F. v. Mueller. 



4. T. pilosa, F. v. M.—L&t. 19 degrees, long. 132 degrees, G. F. Hill 

 <No. 437), 4/7/1911. 



N.W. Coast, Bynoe ; Cygnet Bay, A. Cunningham ; Niohol Bay and 

 De Grey River, 'Ridley's Expedition ; desert between Hooker',? and Sturt's 

 Creeks, F. v. Mueller ; islands of the Gulf of Carpentaria, R. Brown. 



According to Greshoff an Austrahan species of Trianthema is poisonous, 

 ■containing saponin. 



5. T. rhynchocalyptra, F. v. M. — Sandy stony hills and plains, Victoria 

 R.iver, F. v. Mueller ; islands of the Gulf of Carpentaria, R. Brov/n. 



T. turgidifolia, F. v. M. ; T. cypseloides, Benth. ; (in National Herbarium 

 ■Census), and T. Cussackiana, F. v. M. (in Chemist and Druggist of Aust., 

 1895), recorded from North Australia. 



3. SESUVIUM, Linn. 

 1. S. portulacastrum, Linn. — Recorded. Albert River, Henne. 



4. AIZOON, Linn. 1737. 



{Aizoum, Ounniopsis, Vestingia, Heist., 1748). 



1. A. zygophylloides, F. v. M. — Carrington's Landing, MacArthur River, 

 G. F. Hill (No. 591), 20/9/1911. 



Mesembrianthemum aequilaterale, Haw. ; Mesembrianthemum . atistrale, 

 Poland. ; Tetragonia diptera, F. v. M. ; Tetragonia implexicoma, J. Hook. ; 

 Macarthuria apetala, Haw. ; Recorded in National Herbarium Census from 

 North AustraUa. 



PORTULACACE.aE. 



Ovary half-inferior. Petals and stamens perigynous. — 2. Portulaca. 

 Ovary superior. Petals and stamens hypogynous. — 1. Calandrinia. 



1. CALANDRINIA, H. B. and K. 1823. 



[Baitaria, Ruiz, and Pafv., 1794 ; Gistanihe, Spach., 1833 ; Cosmia, Domb., 

 1789 ; Duiazia, Phil., 1830 ; Gensia, Mac. and Sesse., 1828 ; Phacosperma, 

 Havj., 1827 ; Khodopsis, Lilja., 1840 ; Tegneria, Lilja., 1839). 

 Stamens numerous (20 to 100). 



Scapes leafless, 1-flowered. Leaves radical, narrow-hnear. — 5. 



C. uni flora. 

 Stems more or less leafy, several- flowered. — 3. C. quadrivalvis. 

 Stamens few. Capsule ovoid or oblong, very readily dehiscent. 

 Stamens mostly 8 to 10. Seeds pitted. — 2. C. graciUs. 

 Stamens mostly 3 to 5. Seeds very smooth and shining. — 

 1. C. calyptrata. 

 Stamens few. Capsule globular or shortly ovoid, very smooth and shining, 

 and scarcely dehiscent. — 4. C. spergularina. 



1. G. calyptrata. Hook. — 50 miles W. of Camp IV., Lander Creek, G. F. 

 Hill, 21/6/1911. 



