480 CXVIII. BALANOPSE.E.— CXIX. URTICACE^. 



*Ricinus, Linn. 



communis, Linn. — Castor Oil plant; contains prussic acid. 

 Africa. The leaves, naturally applied, of this plant form 

 a valuable galactopoietic (see Dr. W. Woolls, Cont. to Fl. 

 of Austr.). Among the naturalised plants are several 

 forms or varieties. 



Subtribe VI. — Plukeneticce. 

 Tragia, Linn. 



novae-hollandise, Muell. Arg. — Twining Nettle; clothed with 

 stinging hairs. 



Subtribe VII. — Hippomanece. 

 Homalanthus, A. Jnss. 



populifolius, Grah. — Poisonous to stock {Mueller). 

 stillingiasfolius, F. v. M. 

 Omphalea, Linn. 



queenslandise, Bail. 

 Sebastiania, Spreng. 



chamelasa, Muell. Arg. 

 Excaecaria, Linn. — The barks yield caoutchouc in abundance. 



Agallocha, Linn. — Milky Mangrove or River Poison-tree ; also 



Blinding-tree. " Coongera" of Forest Hill and " Me-la- 



ba" of Cooktown natives. The bark contains 13-15 per 



cent, of tannin (Briinnich). 



Dallachvana, Baill. — Scrub Poison-tree. Wood very tough, 



suitable for tool-handles, 

 parvifolia, Muell. Arg. — Gutta-percha tree. Yields a very 

 handsome cabinet-wood. (Fig. 470.) 



Order CXVIII.— BALANOPSEJE. 



Balanops, Baill. 



australiana, F . v. M . — Figured from specimens kindly given 

 for the occasion, from the Muellerian herbarium, by 

 Professor A. J. Ewart. (Fig. 471.) 



Order CXIX.— URTICACEJE. 



(Many plants of this Order yield Caoutchouc, many valuable 

 fibres, and material suitable for paper-making.) 



Tribe I. — Celtide^e. 

 Celtis, Linn. 



philippinensis, Blanco. 



paniculata. Planch. — Investigator-tree. Gulf of Carpentaria. 



