Gymnosiphon queenslandicus (Burmanniaceae), a new addition to the mycoheterotroph flora of tropical rainforest in Australia.

Abstract

• The mycoheterotrophic genus Gymnosiphon Blume is recorded for Australia for the first time after the recent discovery of plants at Mossman Gorge, Queensland. On the basis of examination of living plants in the field as well as materials preserved in spirit, the Mossman Gorge Gymnosiphon taxon is a novelty closely related to Gymnosiphon affinis J.J.Sm., which is known only from New Guinea. The new species is here described as Gymnosiphon queenslandicus B.Gray & Y.W.Low based on floral characteristics important for species distinction in the genus.