THE FLOEA OF THE NORTHERN TERRITORY. 105 



Capsule circumsciss. 



Styles and ovary-cells 3 to 5. — 3. Sesuvium. 

 Styles and ovary-cells 2 or 1. — 2. Trianthema. 



Tribe II. Calyx divided to the base. Petals 5 or fewer or none. — 1. 

 Mollugo. 



1. MOLLUGO, Linn. 1737. 



(Doosera, Roxh., 1834 ; Olirnts, Loefl., 1753 ; Paulo-Wilhelmia, Hochst., 

 1844 ; Physa, Thou., 1806 ; Plenchia, Rafin, 1814 ; Rolofa, Adans, 1763 ; 

 Trigastrotheca, F. v. M., 1857 ; Cerviana, Minuart). 



Section I. Seeds strophiolate, with a filiform appendage (resembHng a 

 funicle) more or less encircling them. 



Softly tomentose. Flowers rather large in axillary clusters. Stamens 

 about 10 to 15. — 1. M. hirta. 



Glabrous or slightly pubescent. Flowers rather small, in axillary clusters. 

 Stamens under 10. — 2. M. spergula. 



Section II. Seeds without any strophiola. — 3. M. trigastrotheca. 



1. M. hirta, Thunb. {M. glinus, A. Rich.). — Near Anthony's Lagoon, 

 G. F. Hill (No. 529), 21/8/1911. 



Charlotte Waters, G. F. Hill (No. 11), 21/2/1911. 



Herbaceous. Growing in bed of dry creek. 



Victoria River, F. v. Mueller. 



Poisonous according to Greshoff and Maiden. Principle unknown. 



2. M. spergula, iiww.— Camp III., Lander Creek, G. P. Hill (No. 304), 

 10/6/1911. 



Victoria River and towards M'Adam Range, F. v. Mueller. 



3. M. trigastrotheca, F. v. if.— 35 miles N.W. of Lander Creek, G. F. 

 Hill (No. 377), 24/6/1911. 



Depuech Island, N.W. Coast, Bynoe ; Hearson Island, Nichol Bay. 

 Walcot ; Sturt's Creek and Arnhem's Land, F. v. Mueller. 



M. Cerviana, Ser. — Recorded in National Herbarium Census from North 

 Australia. 



2. TRIANTHEMA, Sauv. 1751. 



( Ancistrostigma, Fenzl., 1838; Diplochonium, Fenzl., 1839; Papularia, 

 Forsk., 1775 ; Portulacastrum, Juss., 1789 ; Reme, Adans., 1763 ; Rocama, 

 Forsk., 1775 ; Zaleya, Burnt., 1768). 



Ovary and fruit 2-celled, truncate or concave at the top. Styles 2. 

 Flowers clustered. — 2. T. decandra. 



Ovary and fruit 1 -celled, with 1 style. 



Ovary and fruit truncate or concave at the top. 

 Flowers clustered. 



Glabrous or slightly pubescent. Stamens 5. Capsule short and 



broad. — 1. T. crystalhna. 

 Hirsute with long hairs. Stamens about 20. Capsule with 

 a narrow beak. — 4. T. pilosa. 

 Ovary and fruit acute or tapering into the style, or rounded at the top. 

 Glabrous or sparingly pubescent. Flowers solitary, pedicellate, 



not very small. 3. T. oxycalyptra. 

 Hirsute, small and densely tufted. Flowers sohtary in the 

 axils, but crowded on the plant, small. — 5. T. rhynchoca- 

 lyptra. 



