Pakaraimaea is a genus of
trees in the family
Cistaceae. The genus contains a single species, Pakaraimaea dipterocarpacea, from
South America.[2] 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.[3] It maintains strong
ectomycorrhizal associations with a wide variety of fungal species.[4] 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.[5][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.
ISSN0962-1083.
PMID14653803.
S2CID33171677.
^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