Pakaraimaea

Pakaraimaea
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Spermatophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Cistaceae
Genus: Pakaraimaea
Maguire & P.S.Ashton (1977)[3]
Species:
P. dipterocarpacea
Binomial name
Pakaraimaea dipterocarpacea
Maguire & P.S.Ashton (1977)[2]

Pakaraimaea is a genus of trees in the family Cistaceae. The genus contains a single species, Pakaraimaea dipterocarpacea, from South America.[3] It was formerly placed in subfamily Pakaraimoideae of the family Dipterocarpaceae. The species is found in the western highlands of Guyana and in adjacent Bolivar State in Venezuela.[4] It maintains strong ectomycorrhizal associations with a wide variety of fungal species.[5] The trees can sometimes be seen forming large stands in the western Guyanas.

Taxonomy

As of APG IV, the species has been moved out of the Dipterocarpaceae (formerly in subfamily Pakaraimoideae) and is now placed within an expanded Cistaceae due to molecular evidence showing that it is sister to the remainder of Cistaceae.[6][7]

Subspecies

As of March 2024, Plants of the World Online accepted two subspecies:[2]

  • Pakaraimaea dipterocarpacea subsp. dipterocarpacea
  • Pakaraimaea dipterocarpacea subsp. nitida Maguire & Steyerm.

References

  1. ^ Gallardo, A.; Kelloff, C. (2024). "Pakaraimaea dipterocarpacea". IUCN Red List of Threatened Species. 2024 e.T63029A171746585. doi:10.2305/IUCN.UK.2024-1.RLTS.T63029A171746585.en. Retrieved 16 April 2026.
  2. ^ a b "Pakaraimaea dipterocarpacea Maguire & P.S.Ashton". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2024-03-02.
  3. ^ a b "Pakaraimaea Maguire & P.S.Ashton". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2024-03-02.
  4. ^ Bassett Maguire and Peter S. Ashton (1980). "Pakaraimaea dipterocarpacea II". Taxon. 29 (2/3): 225–231. doi:10.2307/1220284. JSTOR 1220284.
  5. ^ Smith, Matthew E.; Henkel, Terry W.; Uehling, Jessie K.; Fremier, Alexander K.; Clarke, H. David; Vilgalys, Rytas (2013-01-31). "The Ectomycorrhizal Fungal Community in a Neotropical Forest Dominated by the Endemic Dipterocarp Pakaraimaea dipterocarpacea". PLOS ONE. 8 (1) e55160. Bibcode:2013PLoSO...855160S. doi:10.1371/journal.pone.0055160. ISSN 1932-6203. PMC 3561384. PMID 23383090.
  6. ^ Ducousso, M.; Bena, G.; Bourgeois, C.; Buyck, B.; Eyssartier, G.; Vincelette, M.; Rabevohitra, R.; Randrihasipara, L.; Dreyfus, B. (2004). "The last common ancestor of Sarcolaenaceae and Asian dipterocarp trees was ectomycorrhizal before the India-Madagascar separation, about 88 million years ago". Molecular Ecology. 13 (1): 231–236. Bibcode:2004MolEc..13..231D. doi:10.1046/j.1365-294x.2003.02032.x. ISSN 0962-1083. PMID 14653803. S2CID 33171677.
  7. ^ Angiosperm Phylogeny Group (2016), "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG IV", Botanical Journal of the Linnean Society, 161 (2): 105–20, doi:10.1111/boj.12385
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