Plant Systematics and Evolution

, Volume 250, Issue 3, pp 243–257

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


    • Museum of New Zealand Te Papa Tongarewa
  • L. D. Shepherd
    • Allan Wilson Centre for Molecular Ecology and EvolutionOteha Rohe campus, Massey University
  • P. J. Brownsey
    • Museum of New Zealand Te Papa Tongarewa

DOI: 10.1007/s00606-004-0239-7

Cite this article as:
Perrie, L., Shepherd, L. & Brownsey, P. Plant Syst. Evol. (2005) 250: 243. doi:10.1007/s00606-004-0239-7


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.


AspleniumA. ×lucrosumA. bulbiferumA. dimorphumfernhen and chickenshybridcultivationchloroplast DNAtrnL-trnFrbcL

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© Springer-Verlag Wien 2005