Plant Systematics and Evolution

, Volume 250, Issue 3–4, pp 243–257

Asplenium ×lucrosum nothosp. nov.: a sterile hybrid widely and erroneously cultivated as “Asplenium bulbiferum

Article

Abstract.

A widely cultivated fern with dimorphic sterile and fertile pinnae, abundant production of vegetative bulbils, and aborted spores is described as Asplenium ×lucrosum Perrie et Brownsey nothosp. nov. It has previously been confused with A. bulbiferum, with which it shares the production of bulbils. Evidence from chloroplast DNA sequences and morphology is presented for the origin of A. ×lucrosum, probably in cultivation, as a hybrid between the New Zealand endemic A. bulbiferum and the Norfolk Island endemic A. dimorphum. The confusion of A. bulbiferum with A. ×lucrosum has led to the latter being used inadvertently in revegetation projects in New Zealand where it is has become a ‘casual’ adventive through its vegetative bulbil propagation.

Keywords

Asplenium A. ×lucrosum A. bulbiferum A. dimorphum fern hen and chickens hybrid cultivation chloroplast DNA trnL-trnrbc

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Copyright information

© Springer-Verlag Wien 2005

Authors and Affiliations

  1. 1.Museum of New Zealand Te Papa TongarewaWellingtonNew Zealand
  2. 2.Allan Wilson Centre for Molecular Ecology and EvolutionOteha Rohe campus, Massey UniversityAucklandNew Zealand

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