242 THE FLORA OF THE NOBTHEBH TEREITORY. 



Leaves nearly equally tomentose on both sides, sinuate-lobed or pinnatifid. 

 Calyx-lobes with very prominent keels or midribs. Leaf -lobes short, 



very undulate. — 15. S. petrophilum. 

 Calyx-lobes without pro-minisnt ri'bs. Leaf-lobes deep, very obtuse 



or spathulatei. — G. S. diversiflo'rum;. 

 Calyx-lobes broad, oibtuse or acute, much enlarged round the fruit 



after flowering. 



Leaves narrow, shortly tomentose, with very numerous long 



prickles.-— 1 . S. carduiforme. 

 Leaves broad, very densely and softly tomentose, with few 



prickles.. — 12. S. melanospermum.. 



Leaves nearly equally, densely, and softly tomentose on both sides, entire 

 or slightly sinuate. 



Leaves acute or scarcely obtuse, mostly undulate (1 to 2 in. long), 



with very numerous long prickles. — 10. S. horridum. 

 Leaves obtuse (mostly under 2 in. long), entire or sinuate, with few 

 or no prickles. 



Fruiting calyx membranous, globular, very prickly, completely 



enclosing the fruit. Leaves ovate or oblong. — 7. S. 



echinatum. 

 Fruiting calyx globular, thick, neiarly enclosing the fruit. Leaves 



orbicular or broadly ovate. — 11. S. lasiophyllum. 

 Fruiting calyx open, 6 to 8 lines diameter. Ovary 3-celled. — 



8. S. ellipticum. 

 Leaves mostly acumdinat© or acute (3 in, long or more), entire, not 

 at all or scarcely prickly. 



Flowering oalyx under 3 lines. long; fruiting calyx 6 to 8 lines 



diameter. Ovary 4-oell©d. — 17. S. quadriloculatum. 

 Flowering caljrs ^ in. long; fruiting calyx nearly 3 in. diameter 

 — ^16. S. phlomoides. 

 Leaves lanceolate, rather obtuse (1 to 3 in. long), entire. Calyx 

 with a globular, very prickly tube and long linear lobes. Flowers 

 large. — 4. S. Cunninghamii. 



1 . S. carduiforme, F. v. M. — Sandy and rocky banks of Nicholson River, 

 Gulf of Carpentaria, F. v. Mueller. 



2. S.cataphr actum, A. Cunn. — Bat Island and Regent River, N.W. Coast, 

 A. Cunningham ; Montague Sound, A. Cunningham. 



3. S. chenopodium, F. v. M. — ^In the interior, between Mount Blight and 

 Mount Fisher, lat. 20 deg. 20 min., M'Douall Stuart's Expedition. 



4. 8. Cunninghamii, Benth.- — Lat. 19 deg., long. 132 deg., G. F. HiU 

 (436), 4/7/1911. 



Recorded. Cygnet Bay, N.W. Coast, A. Cunningham, Bjiioe ; Glenelg 

 district, Marten. 



5. S. discolor, B. Br. — Coen River, Gulf of Carpentaria, R. Brown. 



6. S. diversiflorum, F. v. Jf.— Borroloola, G. F. Hill (616), 9/10/1911. 

 Recorded. Upper Victoria River, F. v. Mueller ; La Grange Bay, N.W. 



Coast, Marten ; Port Waloott, Harper. 



7. 8. echinatum, B. Br. — ^N.W. Coast, Bsoioe ; Upper Victoria River, 

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



8. 8. ellipticum, B. Br.— Macdonnell Ranges, G. F. Hill (167), 12/5/1911. 



