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Taxonomic Swap 79100 (Committed on 2021-01-23)

per PPG I; shown to lie in Microsorum s.s. by phylogeny

Added by choess on July 04, 2020 06:29 | Committed by choess on January 23, 2021
replaced with


Works for me, I am still trying to sort out Phymatosorus scolopendria from P. grossus. Both are referred to by the same name on the islands where they occur here.

Posted by danaleeling over 1 year ago (Flag)

@danaleeling Yes, historically some references have lumped them, which is (I am told) incorrect. Daniel Dooley Palmer's "Hawai'i's Ferns and Fern Allies" describes the difference: "P. scolopendria"..."a closely related, smaller, mostly epiphytic fern with thinner rhizomes, larger scales, and only five or fewer lobe pairs". He gives P. grossus "lobes 2-10 pairs (young plants simple)." So the leaf appearance helps, but only when more or less mature. Unfortunately, rhizome and rhizome scale characters, as mentioned also here https://florida.plantatlas.usf.edu/plant.aspx?id=1448 will not be accessible in many cases. https://www.jstor.org/stable/44076063 may also be helpful (it's a little too recent to be available on Biodiversity Heritage Library). Thanks for encouraging me to look into this! I've been avoiding this question for a while.

Posted by choess 11 months ago (Flag)

@choess yes, it should be done as with the committed https://www.inaturalist.org/taxon_changes/79101
Both kinds, Microsorum grossum and M. scolopendria needed to be valued as introduced to Hawai'i, the English naming as "Unscented oak leaf fern" seems to have been constructed by somebody. I may not know if this fern smells anyway, just think it has been named for some scent as Maile-scented or Musk fern.

Posted by erwin_pteridophilos 11 months ago (Flag)

Looks good to me

Posted by kevinfaccenda 11 months ago (Flag)

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