CYTOTAXONOMIC STUDIES ON SOME POLYTRICHALES FROM AUSTRALIA, NEW ZEALAND, PAPUA NEW GUINEA AND VANUATU

Abstract

  Chromosome numbers are given for 14 species in 7 genera of Polytrichales (Polytrichaceae and Dawsoniaceae), various species being from Australia, New Zealand, Papua New Guinea or Vanuatu (New Hebrides). New records include Notoligotrichum australe (Psilopilum) n=7, Pogonatum neesii n=7, Pogonatum cirrhatum n=7 and 14, Polytrichastrum alpinum n=7. Although chromosome counts have been listed previously for Polytrichum commune n=7, Dawsonia beccarii n=7, and D. crispifolia n=7 some further details are included here. Previously published counts for Atrichum androgynum n=14, Polytrichum juniperinum n=7, Pogonatum subulatum n=7, Polytrichadelphus magellanicus n=7, Dawsonia longiseta n=7, D. polytrichoides n=7, 2n= 14 and D. longifolia (D. superba var. pulchra) n=7, 2n= 14 are confirmed from studies of additional populations.