636 NOTES ON THE NATIVE FLORA OF N. S. WALES, ix., 



(printed 300 erroneously) below its present limit.* Should the 

 snow-line have come down only about 2,000 feet, with a con- 

 sequent lowering of temperature of 6-7° Fall., such a change 

 would have provided all the climatic conditions necessary for the 

 spread of this particular variety of Asterolasia over practically 

 all the present land-surface between Kiandra and Nandewar 

 Mountains, and the closing of the glacial period, with the con- 

 sequent warming of the climate, might have had the effect of 

 gradually exterminating all the plants of this variety, excepting 

 those at altitudes which still ensure cool conditions. This 

 hypothesis, if correct, would show that var. Muelleri is a relic, or 

 stranded plant, as a result of the termination of the last glacial 

 period, but in our present state of knowledge nothing definite can 

 possibly be said on the matter, though continued investigation of 

 similar occurrences should assist in some solution of the problem.! 

 Another plant of considerable interest, in regard to its distri- 

 bution, found towards the top of Mount Lindsay, is Pulten<jea 

 setulosa, which had never previously been collected in New South 

 Wales. It grows in masses about 5-6 feet high, and is covered with 

 yellow flowers during the first week in November. Its previously 

 known habitat is Broad Sound, Queensland, about 750 miles north- 

 erly from the Nandewar Mountains, though it probably occurs in 

 portions of the unexamined intervening area. 



Eight species of Acacia were noticed between the 3,000 and 5,000 

 feet levels, .1. dealbata occurring on the actual summit of IVIount 

 Kaputar at about 5,000 feet, while A. rubida and A. melanoxylon 

 were found up to 4,900 feet. A. armata was seen up to an altitude 

 of about 2,500 feet, and A, neriifolia ascends to about 3,000 feet. 

 This latter species, like A. rubida^ retains its juvenile foliage 

 (pinnate leaves) until the shrubs are 6-8 feet high, and this dimor- 

 phic foliage often assists in the identification of the plant. A. 

 neriifolia is well worthy of cultivation as a Golden -Wattle, as it 



* "Geological Notes on Kosciusko, with Special Reference to Evidences 

 of Glacial Action." By T. W. Edgeworth David, B.A., F.R.S , etc. 

 These Proceedings, 1908, p.668. 



t See remarks by Mr. A. G. Hamilton, in regard to the occurrence of 

 Eucalyplut glohuln.9 near Mudgee. These Proceedinj^s, 1887, p.260. 



