AJriana.] CXVII. EUPHORBIACEiB. U41 



Arg. in DC. Prod. XV. ii. 890 ; Baill. Adans. vi., 312 ; J. heterophylhi, Hook, in 

 Mitch. Trop. Austr. 121; Trachijranjon <'imniniilia)iiii, F. v. M. in Trans. Phil. 

 See. Viet. i. 15, and in Hook. Kew Journ. viii. 209. 



Hab.: Maranoa and Balonne Rivers, Uitchdl ; Kockhampton, Dallachy, Bomnan ; North 

 Kennedy district, Dahitree ; Moreton Bay, C. Stuint. 



Var. cjlahrata. Glabrous or nearly so in all its parts. — A. fjlahrata, Gaudioh. in Ann. Se. Nat. 

 ser. 1, V. 223, and in Freyc. Voy. Bot. 487. 



32. CLAOXYLON, A. Juss. 



(Alluding to the wood being brittle,) 



Flowers dioecious or rarely monceeious, in axillary racemes. Male flower : 

 Calyx at first globular, opening to the base into 3 rarely 4 valvate segments. 

 Petals none. Stamens indefinite, on a central receptacle or disk, intermixed with 

 glands or lobes of the disk, without any central rudimentary ovary ; filaments not 

 inflexed ; anther-cells distinct, erect, opening longitudinally from the apex down- 

 wards. Female flower : Calyx less deeply divided than in the males into 3 or 4 

 valvate lobes. Disk with a free entire or lobed margin. Ovary 3-celled or rarely 

 2-celled, with one ovule in each cell. Styles short, entire, free or united at the 

 base. Capsule separating into 2-valved cocci. Seeds without any carunculus, 

 the outer coating loose and membranous, the inner testa crusfcaceous. Albumen 

 copious. Cotyledons broad, with a narrow radicle. — Trees or shrubs, glabrous or 

 sparingly pubescent with short appressed hairs, the foliage often taking a reddish 

 tint when dry. Leaves alternate, petiolate, usually large, entire or toothed, 

 penniveined. Eacemes solitary or 2 together, shorter than the leaves. Flowers 

 small, the males few together in clusters,, the females solitary. Bracts minute. 



The genus is spread over tropical Asia and Africa. The Australian species are all probably 

 endemic, but the characters are difficult to ascertain without good specimens o£ both sexes. 



Leaves long and narrow, on petioles under Jin. Flowers monoecious 



on pedicels of J to Jin. Ovary glabrous .... ...... 1. C. anpustifoUum. 



Leaves various, on petioles of J to lin. Flowers dice3ious or nearly so, 

 on pedicels under 2 lines. Interstatninal glands glabrous. 

 Eacemes in the axils of young leaves. Ovary glabrous. Styles united 



at the b.nse 2. C. tenerifolium. 



Eacemes in the axils of full-grown leaves. Ovary pubescent. Styles 



free 3. C. aiistrale. 



Leaves large on petioles of 1 to 2in. Flowers dioecious, on very short 



pedicels. Interstaminal gland and ovary pubescent 4. G. Hillii. 



1. C. angUStifolium (leaves narrow), jSIuell. Arg. in Limuea xxxiv. 165, 

 andin DC. Prod.^y.n. 786; Bentli. Fl. Austr. vi. 12*9. A shrub of 5 or 6ft., 

 glabrous except a minute pubescence on the inflorescence, Leaves narrow-lance- 

 olate, acuminate, irregularly toothed, tapering at the base, rather firm and smooth, 

 4 to 8in. long and rarely above lin. broad, on a petiole of only 1 to 3 lines, the 

 basal glands very small. Flowers monoecious, in racemes of about lin., the 

 rbacliis slender almost filiform, the males in clusters of 3 to 6 on pedicels of 2 to 

 B lines, with occasionally a female in the same cluster on a pedicel twice as long. 

 Male perianth of 3 segments, about -^ line long. Stamens 10 to 12, intermixed 

 with small narrow glands ; filaments thick, nearly as long as the perianth ; 

 anther-cells small, erect. Ovary glabrous or minutely pubescent ; styles exceed- 

 ingly short, tooth-like. Young capsule tridymous, glaucous, and quite glabrous,. 

 on a pedicel of above ^in. — Me rcitr talis amjustifolia, Baill. Adans. vi. 322. 

 Hab.: Cumberland isles and Port Denison, Fitzalan. 



2. C. tenerifolium (leaves delicate, supple), F. r. jl/". {ii Baill, Adans. vi. 

 323; BentU. Fl. Austr. yi. 130. A tree of 20 to bOft., the young shoots and 

 inflorescence sparingly and minutely pubescent, otherwise glabrous. Leaves 

 iKOstly ovate and acuminate, rarely more elliptical, dentate, tapering at. the, base, 



