1490 CXX. CASUARINEiE. [Casuarina. 



Cones not above 4 lines diameter, globular 4. C. Gunninyhamiana. 



Cones, 9 to H lines, almost globular. Bark thready .... 5. C. inophloia. 

 Sbrub (always ?) dioecious. Cone-valves with the dorsal protuberance 



short and smooth 6. C. distyla. 



Sect. 2. Trachypitys.— IF7^0)■Zs i-5-merous, rarely 6-inerovs. Cove-valves rarely 

 prominent hcyond the thick broad obtuse dorsal protuberances, which are very rugose or divided 

 into tubercles [nearly smooth in G. Decaisneana.) 



Male-sxjikes and branchlets slender. 

 Cones more or less villous. 

 Shealh-teeth very short. Cone-valves slightly protruding beyond 

 several small dorsal tubercles. 

 Branchlets nearly terete. Sheath-teeth ot the male spikes 



scarcely acute ... . . . 7. C torulosa. 



Sheath-teeth 1 to 3 lines long. Cone-valves not exceeding the 

 single large dorsal tubercle 8. C. Decaisneana. 



1. C. glauca (glaucous), Sieh. in Spreng. Syst. iii. 803 ; Benth. Ft. Austr. 

 vi. 196. Swamp Oak. "Billa," Stradbro'ke Island, Watkins. "Woongul," 

 St. George, ]Vcdd. A tree, often attaining a considerable size. Whorls 

 ujually 10 to 12-merous, but the parts varying from 9 to 16, the sheath- 

 teeth short on the deciduous branchlets, more acuminate on the permanent 

 branches. Male spikes rather dense, J to lin. long, the sheath-teeth sometimes 

 ciliafce. Cones usually subglobose, flat-topped, rarely much above 4in. diameter, 

 the valves very prominent, often pubescent on the back, thickened into a smooth 

 dorsal prominent angle or keel. In some forms, including Sieber's typical 

 specimens, the cones are smaller, with very numerous rather smaller valves very 

 regularly arranged. — Miq. Eev. Cas. 76, t. 11, and in DC. Prod. xvi. ii. 834 ; 0. 

 torulosa, Miq. Kev. Cas. 75, t. 11 B, but not of Ait. 



Hab.: Brisbane Biver, Moreton Bay, and between Mackenzie and Suttor Elvers, F. v. Mueller ; 

 Eockhampton, O'Shanesy. 



Wood of a red colour, beautifully marked, close-grained, hard and tough; useful in cabinet 

 work ; used for shingles and staves. — Bailey's Gat. Ql. Woods, No. 401. 



The variety with cones resembling those of G. equisetifolia mentioned by Benth.' Fl. Austr. vi. 

 196, I have specimens from St. George, J. Wedd, but they are not complete enough for 

 describing. 



2. C. equisetifolia (Equisetum-leaved), Forst. Char. Gen. 103, t. 52 ; Benth. 

 Fl. Austr. vi. 197. A tree attaining a large size, the principal branches elongated 

 and spreading or ascending, the smaller ones often pendulous, glabrous or tomen- 

 tose when young. Whorls usually 7-merous, but the parts varying from 6 to 8. 

 Sheath-teeth short and acute or sometimes fine-pointed on the persistent branches, 

 the internodes rarely exceeding Jin. the ribs rather prominent. Flowers dioecious,, 

 male spikes about fin. long, terminating slender deciduous branchlets, the 

 sheaths of the spikes closely imbricate. Fruit-cones very shortly pedunculate on 

 the persistent branches, globular, usually about -Jin. diameter, the valves 

 protruding about 1 line, broadly ovate, obtuse, pubescent outside, without any or 

 with a very obscure dorsal protuberance at the base. — Miq. Eev. Cas. 43, t. 5 

 and in DC. Prod. xvi. ii. 338, with the several (non-Australian) synonyms there, 

 given. 



Hab : Islands of the Gulf of Carpentaria, Henne ; Northumberland Islands, iJ. Brown ■ 

 Cape Bedford and Islands off Cape Flattery^ F. v. Mueller ; Entrance Island, Endeavour Straits' 

 Leichhardt ; Percy Islands, H' alter ; Eockingham and Edgecombe Bays, Dallachy ; Port. 

 Denison, Fitzalan. 



Wood of a dark-colour, coarse-grained, but nicely marked.— BaWe^/'s Cat. Ql. Woods, No. 401a. 



Var. incana. "Wunna Wunnarumpin," Stradbroke Islands, Watkins. Young shoots very 

 tomentose. G. incana, A. Cunn. Herb. ' '■' 



Hab.; Islands and coastal lands. 



Wood of a light-brown colour, prettily marked, olose-grained and very tough. — Bailey's Cat 

 Ql. Woods, No. 402. 



The species is widely spread over East India and the Archipelago. 



