Pakaraimaea

{{Short description|Genus of flowering plants in the rock rose family}} {{Speciesbox | image = | image_caption = | status = LC | status_system = IUCN3.1 | status_ref = <ref name = iucn>{{cite iucn |author=Gallardo, A. |author2=Kelloff, C. |year=2024 |title=''Pakaraimaea dipterocarpacea'' |volume=2024 |article-number=e.T63029A171746585 |doi=10.2305/IUCN.UK.2024-1.RLTS.T63029A171746585.en |language=en |access-date=16 April 2026}}</ref> | genus = Pakaraimaea | parent_authority = Maguire & P.S.Ashton (1977)<ref name=POWO_14385-1/> | species = dipterocarpacea | authority = Maguire & P.S.Ashton (1977)<ref name=POWO_321130-1>{{Cite POWO|title=''Pakaraimaea dipterocarpacea'' Maguire & P.S.Ashton|id=321130-1|access-date=2024-03-02|mode=cs1}}</ref> }}

'''''Pakaraimaea''''' is a genus of trees in the family Cistaceae. The genus contains a single species, '''''Pakaraimaea dipterocarpacea''''', from South America.<ref name=POWO_14385-1>{{Cite POWO|title=''Pakaraimaea'' Maguire & P.S.Ashton|id=14385-1|access-date=2024-03-02|mode=cs1}}</ref> 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.<ref>{{cite journal|author=Bassett Maguire and Peter S. Ashton|title=''Pakaraimaea dipterocarpacea'' II|journal=Taxon|volume=29|issue=2/3|year=1980|pages=225–231|doi=10.2307/1220284|jstor=1220284}}</ref> It maintains strong ectomycorrhizal associations with a wide variety of fungal species.<ref>{{Cite journal|last1=Smith|first1=Matthew E.|last2=Henkel|first2=Terry W.|last3=Uehling|first3=Jessie K.|last4=Fremier|first4=Alexander K.|last5=Clarke|first5=H. David|last6=Vilgalys|first6=Rytas|date=2013-01-31|title=The Ectomycorrhizal Fungal Community in a Neotropical Forest Dominated by the Endemic Dipterocarp Pakaraimaea dipterocarpacea|journal=PLOS ONE|volume=8|issue=1|article-number=e55160|doi=10.1371/journal.pone.0055160|issn=1932-6203|pmc=3561384|pmid=23383090|bibcode=2013PLoSO...855160S|doi-access=free}}</ref> 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.<ref>{{Cite journal|last1=Ducousso|first1=M.|last2=Bena|first2=G.|last3=Bourgeois|first3=C.|last4=Buyck|first4=B.|last5=Eyssartier|first5=G.|last6=Vincelette|first6=M.|last7=Rabevohitra|first7=R.|last8=Randrihasipara|first8=L.|last9=Dreyfus|first9=B.|date=2004|title=The last common ancestor of Sarcolaenaceae and Asian dipterocarp trees was ectomycorrhizal before the India-Madagascar separation, about 88 million years ago|journal=Molecular Ecology|volume=13|issue=1|pages=231–236|doi=10.1046/j.1365-294x.2003.02032.x|issn=0962-1083|pmid=14653803|bibcode=2004MolEc..13..231D |s2cid=33171677}}</ref><ref name="apgiv">{{Citation |last=Angiosperm Phylogeny Group |year=2016 |title=An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG IV |journal=Botanical Journal of the Linnean Society |volume=161 |issue=2 |pages=105–20 |doi= 10.1111/boj.12385|doi-access=free }}</ref>

===Subspecies=== {{As of|2024|March}}, Plants of the World Online accepted two subspecies:<ref name=POWO_321130-1/> *''Pakaraimaea dipterocarpacea'' subsp. ''dipterocarpacea'' *''Pakaraimaea dipterocarpacea'' subsp. ''nitida'' <small>Maguire & Steyerm.</small>

==References== {{Reflist}}

Category:Cistaceae Category:Monotypic Malvales genera Category:Flora of Guyana Category:Flora of Venezuela Category:Least concern flora of South America Category:Taxa described in 1977 Category:Taxa named by Peter Shaw Ashton Category:Taxa named by Bassett Maguire