{{Short description|Genus of trees}} {{Automatic taxobox |image = A hand-book to the flora of Ceylon (Plate XV) (6430636657).jpg |image_caption = ''Stemonoporus affinis'' |taxon = Stemonoporus |authority = Thwaites |subdivision_ranks = Species |subdivision = |synonyms = * ''Hemiphractum'' <small>Turcz.</small> * ''Kunckelia'' <small>F.Heim</small> * ''Monoporandra'' <small>Thwaites</small> * ''Sunapteopsis'' <small>F.Heim</small> * ''Vesquella'' <small>F.Heim</small> |synonyms_ref = <ref name = powo>[https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:14404-1 ''Stemonoporus'' Thwaites]. ''Plants of the World Online''. Accessed 29 January 2026.</ref> }}
'''''Stemonoporus''''' is a genus of plants in the family Dipterocarpaceae. The genus is endemic to Sri Lanka.<ref name = powo/> It contains 26 species,<ref name = powo/> all but one confined to the perhumid forests of the island.{{citation needed|date=June 2024}}
==Species== 26 species are accepted:<ref name = powo/><ref>This list has been compiled from the [http://193.62.154.38/diptero/ Dipterocarpaceae Data Base] − held and maintained at the Royal Botanic Garden Edinburgh.</ref> * ''Stemonoporus acuminatus'' <small>(Thwaites) Bedd.</small> * ''Stemonoporus affinis'' <small>Thwaites</small> * ''Stemonoporus angustisepalus'' <small>Kosterm.</small> * ''Stemonoporus bullatus'' <small>Kosterm.</small> * ''Stemonoporus canaliculatus'' <small>Thwaites</small> * ''Stemonoporus ceylanicus'' <small>(Wight) Alston</small> * ''Stemonoporus cordifolius'' (<small>Thwaites) Alston</small> * ''Stemonoporus elegans'' <small>(Thwaites) Alston</small> * ''Stemonoporus gardneri'' <small>Thwaites</small> * ''Stemonoporus gilimalensis'' <small>Kosterm.</small> * ''Stemonoporus gracilis'' <small>Kosterm.</small> * ''Stemonoporus kanneliyensis'' <small>Kosterm.</small> * ''Stemonoporus laevifolius'' <small>Kosterm.</small> * ''Stemonoporus lanceolatus'' <small>Thwaites</small> * ''Stemonoporus lancifolius'' <small>(Thwaites) P.S.Ashton</small> * ''Stemonoporus latisepalus'' <small>Kosterm.</small> * ''Stemonoporus marginalis'' <small>Kosterm.</small> * ''Stemonoporus moonii'' <small>Thwaites</small> * ''Stemonoporus nitidus'' <small>Thwaites</small> * ''Stemonoporus oblongifolius'' <small>Thwaites</small> * ''Stemonoporus petiolaris'' <small>Thwaites</small> * ''Stemonoporus reticulatus'' <small>Thwaites</small> * ''Stemonoporus revolutus'' <small>Trimen ex Hook.f.</small> * ''Stemonoporus rigidus'' <small>Thwaites</small> * ''Stemonoporus scalarinervis'' <small>Kosterm.</small> * ''Stemonoporus scaphifolius'' <small>Kosterm.</small>
==References== {{reflist}}
{{Taxonbar|from=Q2710186}}
Category:Stemonoporus Category:Dipterocarpaceae genera Category:Endemic flora of Sri Lanka Category:Taxonomy articles created by Polbot Category:Taxa named by George Henry Kendrick Thwaites
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