Contributions to the quaternary history of the New Zealand flora

Abstract

Two pollen diagrams from No Man's Land bog, which lies at about 4,300–4,500 ft a.s.l. in the northern Ruahine Range, are discussed. The pollen diagrams show a trend towards an increase of Nothofagus forest and in this respect comparc with diagrams from the central Ruahines. Interpretation of pollen diagrams from high altitude is confused by upward drift of pollen from lower altitudes, and details of changes in local vegetation are obscured because of this. Layers of pumice in the peat allow correlation of events with those in bogs in the central Ruahine Ranges.