42 PROCEEDINGS OF THE ROYAL SOCIETY OF QUEENSLAND. 



153. It is known as the mountain wattle and curly-fruited 

 wattle among bushmen and selectors. The flowers are usually 

 of a very pale yellow colour. 



VII. — Acacia maideni F.v.M. is a common Avattle in sandy 

 country near Brisbane. A fine specimen in the Botanic Gardens, 

 Brisbane, is probably a survival from the old river scrub in that 

 locality. When young its phyllodes are often mistaken for 

 those of Acacia longifolia Willd. The flowers are in nearly 

 sessile spikes, solitary or two or three together, and are pale 

 yellow or almost white. The pods are narrow and twisted, and 

 may be mistaken for those of A. implexa. The flowers closely 

 resemble those of Acacia longifolia, from wliich Maiden's 

 wattle may be separated by not possessing the white bract at 

 the base of each flower, as in longifolia. At times the similarity 

 between the phyllodes of A. implexa and A. maideni is 

 extremely close. No common name is used for this tree 

 in Southern Queensland. It is seldom found more than 20 

 feet in height ; it is figured in Maiden's Forest Mora, vol. vi, 

 pi. 220. 



VIII. — Acacia penninervis Sieb., the feather- veined wattle, 

 is extremely common in the low-lying coastal country of S.E. 

 Queensland. It is easily recognisable by its pinnately veined 

 phyllodes, the edges thickened, and usually showing a marginal 

 gland below the middle. Each globular capitulum contains 

 about 20 flowers, the calyx truncate, the petals smooth. It 

 extends from Point Danger to Roma and Mitchell, beyond 

 which to the north and west it seems to be replaced by its 

 ally A. bancrojti Maiden. It is figured in Maiden's Forest 

 Flora, vol. iii, pi. 91, 92. 



4.— HISTOLOGY OF STEMS. 



I. — Acacia amhlygona A. Cunn., transverse section of twig 

 in its third year. (Plate II.) The pith shows large polygonal 

 cells, in transverse section, six- or seven-sided, 20-26 yb in 

 diameter, some having lost their protoplasmic contents, others 

 filled vAth starch grains, showing radiate arrangement. 

 The medullary rays, coloured by methylene blue, show very 

 plainly, and the cells are large for the Acacia family, measuring 

 14-20 IX. Through the wood of the first and second years 

 they are in single rank, in the third year's wood they may be in 

 double or treble rows. The vessels of the xylem are smaller 



