Acacia dealbata subsp. subalpina (Fabaceae: Mimosoideae), a new subspecies from southeastern Australia. Telopea 9(2): 319-322. Acacia dealbata subsp. subalpina (Acacia sect. Botrycephalae), is described from southeastern New South Wales and northeastern Victoria. It occurs at higher altitudes of the tablelands, being distinguished from subsp. dealbata mainly by its smaller stature and leaves.

The modern pollen spectra for Eucalyptus forest and rainforest communities were investigated from 19 sites in the Robertson area on the Central Tablelands of New South Wales. Cluster and discriminant analyses were applied to analyse pollen distribution from within and from outside warm temperate rainforest stands and tall open eucalypt forest stands. Pollen abundance is compared with a number of plant abundance estimates of taxa within forests to study pollen representation at the forest scale. Pollen of Doryphora, Polyosma, Pittosporum, Hymenanthera, Tasmannia, Asclepiadaceae and most rainforest taxa investigated are poorly represented, while sclerophyll and open-ground taxa, particularly Eucalyptus, are better represented. The pollen of many native taxa do not appear to be well dispersed, and local pollen is commonly outweighed by pollen from regional sources. Pollen representation varied between taxa and sites, with factors such as vegetation structure, plant distribution, topography and disturbance influencing pollen representation.

Pollen morphological descriptions and photographic illustrations based on light microscope analyses are provided for over 60 angiosperm taxa that occur in rainforest and wet sclerophyll forest communities in the Illawarra region of New South Wales. The resulting pollen taxonomy contributes to the study of Holocene mesotherm rainforest floras in coastal and tableland New South Wales and, because many species are or will have been shared with other vegetation types in the past, also to the floras of other botanical regions. Taxonomic relationships assessed on pollen morphology are discussed for several taxa.

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The typification of eight species of Acacia is discussed, and lectotypes are here selected for six of these species: Acacia adsurgens, A. ancistrocarpa, A. cambagei, A. caroleae, A. rhodoxylon and A. shirleyi. The previously designated neotype of A. cambagei is now unnecessary.