Checklist of the Timorese Euphorbiaceae and related families Author Simão, Inês F. 0000-0001-6548-8535 Department of Biology, University of Aveiro, 3810 - 193 Aveiro, Portugal ines.simao@ua.pt Author Silveira, Paulo C. 0000-0002-9253-5381 Department of Biology, University of Aveiro, 3810 - 193 Aveiro, Portugal & CESAM-Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, 3810 - 193 Aveiro, Portugal psilveira@ua.pt Author Wajer, Jacek 0000-0002-2329-9186 Science Department, Algae, Fungi and Plants Division, Natural History Museum, Cromwell Road, London SW 7 5 BD, UK j.wajer@nhm.ac.uk Author Schuiteman, André 0000-0001-6701-8158 Herbarium, Royal Botanic Gardens, Kew, Richmond, TW 9 3 AB, United Kingdom a.schuiteman@kew.org Author Welzen, Peter Van 0000-0002-5072-431X Naturalis Biodiversity Center, P. O. Box 9517, 2300 RA Leiden, The Netherlands; Institute of Biology Leiden, University of Leiden, P. O. Box 9502, 2300 RA Leiden, The Netherlands peter.vanwelzen@naturalis.nl text Phytotaxa 2024 2024-07-30 661 2 123 149 http://dx.doi.org/10.11646/phytotaxa.661.2.1 journal article 10.11646/phytotaxa.661.2.1 1179-3163 Alchornea rugosa (Lour.) Müller Argoviensis (1865: 170) ; von Malm (1934: 278) Alchornea javensis (Blume) Müller Argoviensis (1865: 170) ; Fawcett (1885: 517) . Ecology: usually frequent in understory in shade or semi-shade of primary ( Dipterocarpus ) rain forest, evergreen forest, deciduous forest, gallery forest, secondary forest to deforested and very degraded seasonal forest with bamboo, scrub, and even in alang-alang (grass fields), very often in wet places like marshes or along water courses; also in cultivated places, often on or near limestone, partly even on guano near caves, clay loam, deep clay, ultramafic; bedrock: shale, quartzite, sandstone or granite, from sea level up to 1200(-2800) m elevation ( van Welzen et al . 2007 ). Distribution: India ( Assam , Nicobar Islands ), Sri Lanka , China , Myanmar , Thailand , Vietnam , Peninsular Malaysia , Sumatra, Java, Borneo, Philippines , Sulawesi , Lesser Sunda Islands , Moluccas , New Guinea , Australia ( van Welzen et al . 2007 ). Specimens examined: Indonesia ( Timor Barat ): South Central Timor , [Supul, 9°50’40” S , 124°26’49” E ], 19 January 1969 , Kooy, C. W. 607 ( L [ L .2185697]) ; Timor — Zippelius, A. s.n. ( L [ L .2185698]) ; Spanoghe , J. B. s.n. ( L [ L .2185699]) ; Unknown s.n. ( L [ L .2185700]) ; Teijsmann , J. E. HB 10762 ( L [ L .2185696]) ; Timor Leste : Lautém , Los Palos , Ira Malaru area , [ 8°24’00” S , 127°04’58” E ], 6 October 2005 , Cowie, I.D. & Xavier A. F. 10891 ( L [ L .2185693]) ; Los Palos , footslopes of Mt. Paitxau range, [ 8°28’26” S , 127°08’49” E ], 27 October 2006 , Pinto, P. s.n. ( L [ L .3799417]) . Red List Assessment: Least Concern.