Dioon holmgrenii

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Dioon holmgrenii
Dioonholmgrenii.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Gymnospermae
Division: Cycadophyta
Class: Cycadopsida
Order: Cycadales
Family: Zamiaceae
Genus: Dioon
Species:
D. holmgrenii
Binomial name
Dioon holmgrenii
De Luca, Sabato & Vázq. Torres 1981

Dioon holmgrenii is a species of cycad in the family Zamiaceae. It is endemic to Mexico, where it occurs only in an area just to the southwest of San Gabriel Mixtepec, Oaxaca. [2] It is known by the common name palma del sol (sun palm). [2]

Contents

This plant grows in humid pine-oak forest habitats.

There are only two known subpopulations. [2]

Mutualism

The beetle Pharaxonotha occidentalis is in an obligatory mutualistic relationship with Dioon holmgrenii, living and breeding in male cones and consuming pollen and cone tissues while serving as a pollinating vector by transferring pollen to female cones. [3]

References

  1. ↑ Chemnick, J.; Gregory, T.; Morales S. (2010). "Dioon holmgrenii". IUCN Red List of Threatened Species . 2010 e.T42129A10660365. doi: 10.2305/IUCN.UK.2010-3.RLTS.T42129A10660365.en . Retrieved 20 November 2021.
  2. 1 2 3 Chemnick, J.; Gregory, T.; Morales S. (2010). "Dioon holmgrenii". IUCN Red List of Threatened Species . 2010 e.T42129A10660365. doi: 10.2305/IUCN.UK.2010-3.RLTS.T42129A10660365.en . Retrieved 14 January 2020.
  3. ↑ Tang, William; Skelley, Paul E.; Taylor B, Alberto S.; Salzman, Shayla (April 5, 2024). "Review of Pharaxonotha Reitter (Coleoptera: Erotylidae: Pharaxonothinae) inhabiting cones of the cycad Zamia L. (Cycadales) in Panama, with descriptions of five new species". Insecta Mundi: 3, 6. ISSN   1942-1354.


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