Some hitherto unknown Australian Plants. 49 



green. Petals 6-7, sessile, white, at least for a long while 

 persistent. Filaments capillary, smooth, one line long. An- 

 thers minnte, didymous, white-yellow, affixed betwixt the 

 cells. Styles white, about a half line long, subulate, divergent, 

 with united bases. Vertext of the ovary free. Ovules several, 

 pendulous. Eipe fruit unknown, but only 1 or 2 ovules ad- 

 vancing to maturity. 



Mr. Allan Black, the custos of Sir Wm, Hooker's herba- 

 rium, first pointed out the position of this plant in Homa- 

 lineae, justly alluding to its resemblance with Homalium, and 

 observing that the homalideous order had not been previ- 

 ously noticed in Australia.,' 



Lythrace.se. 

 Ammannia crinipes. 



(Sect. Cornelia.) 



Annual; stems adscendant or procumbent; branches thread- 

 like; leaves linear or oblong, blunt, somewhat fleshy, 

 slightly scabrous, tapering into a very short petiole; 

 peduncles axillary, solitary, one-flowered, capillary, 

 crowded towards the summit of the branchlets, twice or 

 many times longer than the leaves; calyces tetragonous- 

 campanulate, bluntly four-lobed; sinus-teeth indistinct; 

 petals four, white, ovate; capsules very tender, nearly 

 ovate, perfectly immersed in the calyx, irregularly 

 bursting. 

 _ In moist, sandy flats, and on the sandy-gravelly banks of 

 rivers in Arnhem's Land. 



A singular little plant, from a few inches to a span high, 

 sometimes rooting along the stems. 



LEGUMINOSiE. 



Bauhinia Carroni. 



(Sect. Lysistemon.) 



Leaflets oblique-ovate, glabrous, longer than the petiole, free 

 to the base ; corymbs few-flowered, nearly sessile ; pedi- 

 cels and calyces brownish-silky; tube of the calyx cam- 

 panulate, with attenuated base; its teeth 5, short; petals 

 imbricate, unequal, ovate and ovate-oblong, two or 

 three times longer than the calyx, not spreading, out- 

 ward scantily silky; filaments unequal, exserted, all 

 fertile, free; anthers oval; pods oblong, flat, few-seeded; 

 their stalks not adnate to the calyx. 



fE 



