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<em>Marattia howeana</em> (W.R.B.Oliv.) P.S.Green, a rare endemic to Lord Howe
Andrew G. Murdock University of California, Berkeley Department of Integrative Biology Berkeley CA USA
rare endemic, Marattia howeana, marattioid fern
rare endemic, Marattia howeana, marattioid fern

Marattia howeana (W.R.B.Oliv.) P.S.Green, a rare endemic to Lord Howe Island with only a few known remaining populations. Several marattioid fern species, including M. howeana and the Hawaiian endemic M. douglasii (C. Presl) Baker, are seriously threatened by introduced feral pigs who favor the sweet fleshy rhizome as a food source. The fully fused synangia (fused sporangia, ca. 3–5 mm in length), characteristic of Marattia s.l., are captured in this photo just at the stage of dehiscence. This photo was taken from live material grown at Humboldt State University, Arcata, California, where new methods for efficient asexual propagation of marattioid ferns are currently under development.

For further details, see Murdock: Phylogeny of marattioid ferns (Marattiaceae): inferring a root in the absence of a closely related outgroup, American Journal of Botany, Volume 95, Issue 5, pages 626-641,

Botanical Society of America
Additional data
copyright: Murdock, BSA
Systematics and Phytogeography Quick view
Botanical Name
Marattia howeana, M. douglasii
Common Name
marattioid fern species
Location Area
Lord Howe Island
Location State
New South Wales
Location Country
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