Wong Sin Yeng

Wong Sin Yeng
Harvard University | Harvard · Arnold Arboretum of Harvard University

About

214
Publications
161,141
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
1,421
Citations
Citations since 2017
79 Research Items
712 Citations
2017201820192020202120222023050100150
2017201820192020202120222023050100150
2017201820192020202120222023050100150
2017201820192020202120222023050100150
Introduction
Wong Sin Yeng currently works on taxonomy, phylogeny and pollination of Araceae, Zingiberaceae, Dioscoreaceae and Dipterocarpaceae.
Additional affiliations
February 2002 - present
University Malaysia Sarawak
Position
  • Professor (Associate)

Publications

Publications (214)
Article
Premise: Recent phylogenetic studies of the Araceae have confirmed the position of the duckweeds nested within the aroids, and the monophyly of a clade containing all the unisexual flowered aroids plus the bisexual-flowered Calla palustris. The main objective of this work was to better resolve the deep phylogenetic relationships among the main lin...
Article
Full-text available
Two new species of Rhaphidophora with perforated leaf blades are described from Borneo and illustrated from living plants. An identification key to the five morphologically similar Bornean species is provided.
Article
Full-text available
Corrections and updates are made to the taxonomy and nomenclature of Homalomena ovata Engl., Homalomena borneensis Ridl, and Chamaeclason ovatum Schott. Homalomena hostifolia Engl. is treated as a homotypic superfluous name for H. ovata Engl. Homalomena ovatum (Schott) Hook.f., an illegitimate name, is renamed Homalomena nathanielii and treated as...
Article
Thecae horns are specialized anther extensions present in two tribes of Araceae: Cryptocoryneae and Schismatoglottideae. This structure is important in defining the generic boundaries and segregations within Schismatoglottideae. Eleven convergent lineages of thecae horns have evolved within Schismatoglottideae, contributing to the diverse stamen st...
Article
Full-text available
Schottarum inconspicuum S.Y.Wong & P.C.Boyce, is described as a new species from the easten part of the Rejang Basin, taking the genus to three species. All are illustrated from living plants. A distribution map is provided.
Article
Full-text available
Schismatoglottis auyongii is described and illustrated as a new clumping species of the Schismatoglottis Calyptrata clade from wet slopes in hill forest on the extremely hard Paleogene sandstones of the Penrissen Range, SW Sarawak.
Article
Full-text available
Two ornamental new species of Schismatoglottis are described and illustrated from Borneo. Schismatoglottis metallica from Kalimantan Barat, Indonesian Borneo, assigned to the Schismatoglottis Multinerva clade, and S. reticosa from the upper Engkari river in SW Sarawak, Malaysian Borneo, provisionally placed in the Petradoxa clade. Recognition of th...
Article
Full-text available
Bucephalandra adei S.Y.Wong, P.C.Boyce & A.Y.M.Hii, is described as new additional the six already known species in which the spadix appendix exceeds the length of the fertile portion of the spadix. All are endemic to Borneo. An key to identification for the seven species and a distribution map is provided. Recognition of B. adei takes Bucephalandr...
Poster
Full-text available
COLE TCH, WONG SY (2021) Poster Filogeni ARACEAE (Aroid Penting). Versi Bahasa Malay: COLE (2020) Araceae Phylogeny Poster (Essential Aroids) • 43 daripada lebih kurang ~140 genus yang diiktiraf sekarang dipilih untuk POKOK, genus yang selebihnya disenaraikan bersama persekutuannya di SENARAI di atas • pokok hipotetikal berdasarkan data filogenetik...
Poster
Full-text available
COLE TCH, WONG SY, LI H (2021) (中文标题) 天南星科系统发育海报 (主要天南星亚科) – Chinese version of: COLE TCH (2021) ARACEAE Phylogeny Poster • 从~140个属中选出43个属构成本文的系统树,(所有其他属在上面的表中以及有关文献中列出) • 假设的系统树基于以下分子系统研究数据:Nauheimer et al. (2012) 和Cusimano et al. (2011) • 分支长度未表示实际时间范围 • 列出的特征不一定适用于进化枝的所有成员 • 进化树上各种特征的位置尚不确定 • 特征/性状主要来自Kubitzki的FGVP, IV卷(1998)• 物种数量(属下的)引自自“Überl...
Article
Full-text available
Three new colonial species of Schismatoglottis Calyptrata clade are described and illustrated from Sarawak and compared with the four pre-existing morphologically similar species occurring in the state. A modified description of Schismatoglottis niahensis is provided to correct a previous misinterpretation of the stem architecture. All seven recogn...
Article
Full-text available
Three new colonial species of Schismatoglottis Calyptrata clade are described from Peninsular Malaysia and compared with the four already known morphologically similar species described from there. All seven species are illustrated from living plants and an identification key is provided.
Article
Full-text available
Homalomena puncticulosa is described and illustrated as a new species of the Chamaecladon Clade known from a single population in Selangor, and compared with the superficially similar H. kiahii Furtado, and other similar Sumateran species.
Article
Full-text available
One hundred and fourteen species belonging to 29 genera of Araceae are recorded from Sabah: Aglaonema Schott, Alocasia (Schott) G.Don, Amorphophallus Blume ex Decne., Amydrium Schott, Anadendrum Schott, Arisaema Mart., Bucephalandra Schott, Colobogynium Schott, Colocasia Schott, Cryptocoryne Fisch. ex Wydler, Cyrtosperma Griff., Epipremnum Schott,...
Article
Full-text available
A new species of Homalomena Chamaecladon Clade is described from the Santubong Peninsula, Kuching Division, Sarawak, to where it is endemic, and compared with H. paucinervia from the nearby Matang Massif, and with H. atrox from Sri Aman, the two other most similar described species from NW Borneo. All three species are illustrated from living plant...
Article
Full-text available
Homalomena joanneae is described and illustrated as a new species of the Chamaecladon Clade restricted to the industrially threatened limestone of Gunung Kanthan, Kuala Kangsar, Perak, and compared with its probable nearest congener, H. hendersonii from Kelantan.
Article
Full-text available
Ng WS, Jayasilan MA, Wong SY. 2020. Floral biology and pollination strategy of Durio (Malvaceae) in Sarawak, Malaysian Borneo. Biodiversitas 21: 5579-5594. This study was carried out to investigate on the flowering mechanisms of four Durio species in Sarawak. The anthesis started in the afternoon (D. graveolens and D. zibethinus), evening (D. kutej...
Article
Spadix temperature was measured in Schismatoglottis ahmadii, S. lowiae, S. sp. nov., and S. wallichii. The anthesis of S. lowiae, S. sp. nov., and S. wallichii started just after dawn but in S. ahmadii, it began two hours later. Spadix temperatures of the four species increased at the beginning of each of the two successive flowering mornings, corr...
Article
Homalomena portae-inferni is described and illustrated as a new species of the Chamae-cladon Clade with scintillating-velutinous foliage restricted to lowland kerangas, and compared with the three morphologically most similar species on Borneo, and with the single other Chamaecladon species described from the Tawau Hills National Park.
Article
Schismatoglottis guabatuensis is described and illustrated as a new species of the Calyptrata clade restricted to the limestone of Batu Caves, Selangor, Malaysia. It is compared with the three other described species of the Calyptrata clade present in Peninsula Malaysia.
Article
Full-text available
Homalomena hottae is described and illustrated as a new species of microscopically scintillating-velutinous leaved aroid from the Karst limestone of Mulu National Park, to where it is locally restricted. Homalomena hottae is compared with the two currently described Bornean species with similarly scintillating foliage. Notes on the pollination biol...
Article
Homalomena benedikii is described and illustrated as a new species from Serian Division, SW Sarawak, where it is restricted to forested Triassic-Jurassic karst formations, and compared with the two most similar described species H. cowleyae and H. imitator, from shales in NE Sarawak and Brunei, and C Sarawak, respectively.
Article
Full-text available
Citation: Wong Sin Yeng et al. (2020) Studies on Potheae of Borneo II: Pedicellarum M.Hotta subsumed into Pothos L., and recognition of three new species. Abstract. Pedicellarum is subsumed into Pothos as Pothos paiei. Four species, three tax-onomically novel (Pothos degenerans, ecclesiae and P. fractiflexus) and one pre-existing (Pothos oliganthus...
Article
Full-text available
The presence of stipular and leaf blade extra floral nectaries and associated ant activity, including brood raising within stipules, is reported for saplings of Shorea macrophylla [sect. Pachycarpae] in Kuching Division, Sarawak.
Article
Full-text available
Citation: Wong Sin Yeng et al. (2020) Studies on Homalomeneae (Araceae) of Sumatera VI: Two remarkable new species of Homalomena [Chamaecla-don Clade]. Abstract. Two ornamental new species of Sumateran Homalomena [Chamaecladon] are described: Homalomena anthurioides These novelties represent a continuation of discoveries on Sumatera of species with...
Article
Full-text available
Alocasia puncakborneensis is described and illustrated as a new species of the Alocasia Princeps Complex from upper hill forest on the extremely hard Paleogene sandstones of the Penrissen range, SW Sarawak. Alocasia puncakborneensis occurs at the highest altitude of any of the locally-restricted /geologically obligated species yet described for the...
Article
Full-text available
Schismatoglottis imbakensis is described as a new species of the Schismatoglottis Patentinervia Clade from forested ultramafic rocks, and compared with S. retinervia Furtado, the only the species for the clade yet described from Sabah.
Article
Homalomena cataractae is described and illustrated as a new species of Steenisian rheophyte belonging to the Homalomena punctulata ‐clade from the Tau range, Central Sarawak. A key to the species of the Homalomena punctulata ‐clade is provided.
Article
We investigated the floral characteristics, floral biology and floral visitors of the six Bornean Tacca species: T. bibracteata (only floral characteristics), T. borneensis, T. havilandii, T. leontopetaloides, T. palmata and T. reducta, and T. cristata from Peninsular Malaysia. All species are protogynous with pollen strings extruded post flower op...
Article
Full-text available
Four new species of Schismatoglottis are described and illustrated from Mulu National Park in Malaysian Borneo: Schismatoglottis fossae (Patentinervia Clade), S. roseopedes and S. serratodentata (Calyptrata Clade) and S. pellucida (currently unplaced but likely in the Multinervia clade). A brief summary is provided of botanical exploration at Mulu,...
Article
Schismatoglottis porpax S.Y. Wong, Kartini & P.C. Boyce (Araceae) is described as a new species of the Schismatoglottis Multinervia Complex and compared with congenious species, notably with the morphologically closest taxon S. hayi. Schismatoglottis porpax raises the number of species in the Multinervia Complex to five, and furthermore represents...
Article
Full-text available
Flies of the Colocasiomyia toshiokai species group depend exclusively on infl orescences/infructescences of the aroid tribe Homalomeneae. The taxonomy and reproductive biology of this group is reviewed on the basis of data and samples collected from Southeast Asia. The species boundaries are determined by combining morphological analyses and molecu...
Article
Full-text available
Wong SY, Chua KS. 2019. Phylogeny of Tacca (Taccaceae) and traits in reproductive structures, with description of a new Bornean species. Biodiversitas 20: 3096-3118. A phylogenetic study of 16 of the c. 20 Tacca species is presented using nuclear ITS and plastid matK gene regions. Tacca leontopetaloides and T. maculata are a sister clade to the res...
Article
An overview of the floral biology including floral odour analyses of twenty‐two Bornean Scaphochlamys taxa and three ex Bornean Scaphochlamys taxa was undertaken. All Scaphochlamys species investigated bloom diurnally. Pollen is released gradually, either simultaneously with stigma secretion or later (mostly within one hour). Flowers of most Scapho...
Article
This study aimed to investigate the floral biology and pollinators of 21 aroid species representing 10 genera at Mulu National Park to ascertain if additional guilds were active in this, one of the most florally diverse plant families in the tropics. Extensive field observations on floral biology, including inflorescence development stages, floral...
Article
Homalomena kionsomensis Kartini, P.C. Boyce & S.Y.Wong is described and illustrated as a new species of the Chamaecladon clade, and compared with the one other species of the clade so far described from Sabah. Recognition of H. kionsomensis takes the Homalomena flora of Sabah to seven species, five of them described within the last decade. A key to...
Article
Schismatoglottis clivemarshii and Schismatoglottis priapica are described and illustrated as new species from the Danum Valley Conservation Area, Tawau, Lahad Datu, Sabah, to where both are endemic.
Article
Pothos pugnax is described and illustrated as a new species [Allopothos supergroup: Pothos barberianus group] from ridgetop kerangas in Kuching Division, Sarawak, Malaysian Borneo. Comparison is made with Pothos atropurpurascens the only closely similar species occurring on Borneo, and also between the confoundable shingling stages of P. pugnax and...
Article
Shorea peltata (Dipterocarpaceae), categorized according to IUCN classification as Critically Endangered, is reported for the first time from Sarawak, NW Malaysian Borneo. New data on its distribution, locations' geological characteristics, and the first published description of shoot innovations are presented. Plants from ultrabasics in NE Sabah w...
Article
Full-text available
Shorea peltata, IUCN categorized as Critically Endangered, is reported for the first time from Sarawak, NW Malaysian Borneo. New data on species’ distribution, geological occurrences, and the first published description of shoot innovations are presented. Plants from ultrabasics in NE Sabah are excluded from S. peltata as an undescribed novelty for...
Article
Bucephalandra danumensis is described from the Danum Valley Conservation Area, Tawau, Lahad Datu, Sabah, where it is restricted to streams and waterfalls on igneous outcrops in forests on Cretaceous deepwater sediments, and compared with the only other Sabahan Bucephalandra species, and with all species with echinate/papillate spadix appendix stami...
Article
Full-text available
The hydrophilid genus Cycreon Orchymont, 1919, previously known from two historical specimens only, is reviewed based on the numerous material collected recently from the inflorescences of various Araceae species in the Malay Peninsula and Borneo. Four species are recognized in the genus: C. sculpturatus Orchymont, 1919 from Sumatra, C. armandi Sha...
Article
Full-text available
Wong S.Y., Aisahtul binti Wardi & Boyce, P.C. Studies on Schismatoglottideae (Araceae) of Borneo LXIV: Another new species for the Schismatoglottis Patentinervia Clade from the Rejang Basin, Sarawak. Aroideana 41(1): 139-148 2018
Article
Phylogenetic relationships within Araceae tribe Schismatoglottideae are elucidated based on nuclear ITS and plastid matK. Thirty genera are recognised, composed of 13 pre-existing genera (Apoballis, Aridarum, Bakoa, Bucephalandra, Fenestratarum, Galantharum, Ooia, Phymatarum, Pichinia, Piptospatha, Schismatoglottis, Schottariella and Schottarum), f...
Article
Field studies integrating pollination investigations with an assessment of floral scent composition and thermogenesis in tropical aroids are rather few. Thus, this study aimed to investigate the pollination biology of nine species belonging to Schismatoglottis Calyptrata Complex Clade. The flowering mechanism, visiting insect activities, reproducti...
Article
Full-text available
Aridarum chamaesyce S.Y Wong & P.C. Boyce, sp. nov. is described based on collections from north western Borneo hitherto incorrectly determined as Aridarum montanum. An updated description for A. montanum is given, and both Aridarum chamaesyce and A. montanum are illustrated from living plants. A key to the four species of the Aridarum Clade is off...
Article
Full-text available
Homalomena electra P. C. Boyce & S. Y. Wong, a new species of Homalomena [Cyrtocladon Clade] Hanneae Complex, is described from Kelantan, Peninsular Malaysia as the first representative of the Hanneae Complex from beyond Borneo. A key to the three described Peninsular Malaysian species of Homalomena Cyrtocladon Clade is presented, and all three are...
Article
Full-text available
Schismatoglottis hendrikii S. Y. Wong & P. C. Boyce, sp. nov. is described and illustrated as a new species of the Schismatoglottis Nervosa Grade, based on three collections from Kalimantan Barat, Indonesian Borneo. The four described species for the Nervosa Grade with a green spathe hardly opening at anthesis are pictorially compared.
Article
Full-text available
This study was carried out to determine the suitability of sago starch blended with acrylamide as paper additive. Solutions of unmodified and blended sago starch with acrylamide, were prepared at 5% weight over volume (w/v) basis before the basic properties (i.e., pH, viscosity and solid content) were determined. Thestarches were thenused to coat o...
Article
Full-text available
Schismatoglottis saafiei Kartini, P. C. Boyce & S. Y. Wong and Schismatoglottis zainuddinii Kartini, P. C. Boyce & S. Y. Wong are described and illustrated as new species from Tawau Hills N.P., Sabah, Malaysian Borneo. Schismatoglottis zainuddinii is the first record of the Schismatoglottis Asperata clade for Sabah. Schismatoglottis saafiei belongs...
Article
Full-text available
Homalomena lambirensis S. Y. Wong & P. C. Boyce is described and illustrated as a new species of the Homalomena Hanneae complex [Cyrtocladon clade] from Lambir Hills National Park, northeast Sarawak, Malaysian Borneo to where it is endemic. Comparison with the described Bornean species of the Hanneae complex is made and an identification key to spe...
Article
Full-text available
In the present paper, the genus Scaphochlamys from Borneo is revised. Twenty-four species are recognised, of which 11 are new species: S. durga, S. graveolens, S. hasta, S. lanjakensis, S. lucens, S. nigra, S. multifolia, S. penyamar, S. pseudoreti-cosa, S. scintillans, and S. uniflora. Scaphochlamys depressa is treated as a synonym to S. argentea....
Article
Full-text available
Vietnamocasia, a new monotypic aroid genus in the Alocasia-Colocasia clade, is described with the type species, Vietnamo-casia dauae. Vietnamocasia is distinguished by possessing free individual staminate flowers, lacking expanded syncon-nectives, and having nodding inflorescences. Vegetatively Vietnamocasia is reminiscent of species of the distant...
Article
Full-text available
Vietnamocasia, a new monotypic aroid genus in the Alocasia-Colocasia clade, is described with the type species, Vietnamo-casia dauae. Vietnamocasia is distinguished by possessing free individual staminate flowers, lacking expanded syncon-nectives, and having nodding inflorescences. Vegetatively Vietnamocasia is reminiscent of species of the distant...
Research
Full-text available
Bakoa lucens (Bogner) P.C.Boyce & S.Y.Wong, Bot. Stud. (Taipei) 49(4): 399. 2008.
Article
Full-text available
Schismatoglottis lowae S. Y. Wong & P. C. Boyce sp. nov. is described and illustrated based on the type of Schismatoglottis wallichii var. oblongata Hook.f., until now treated as a heterotypic synonym of S. wallichii Hook.f. A key to the three accepted species of hapaxanthic-stemmed (Calyptrata Clade) Schismatoglottis in Peninsular Malaysia is prov...
Data
Bakoa lucens (Bogner) P.C.Boyce & S.Y.Wong, Bot. Stud. (Taipei) 49(4): 399. 2008
Data
Bakoa lucens (Bogner) P.C.Boyce & S.Y.Wong, Bot. Stud. (Taipei) 49(4): 399. 2008.
Data
Bakoa lucens (Bogner) P.C.Boyce & S.Y.Wong, Bot. Stud. (Taipei) 49(4): 399. 2008.
Data
Bucephalandra vespula S.Y.Wong & P.C.Boyce, Willdenowia 44: 190. 2014.
Data
Bucephalandra vespula S.Y.Wong & P.C.Boyce, Willdenowia 44: 190. 2014.
Data
Bucephalandra vespula S.Y.Wong & P.C.Boyce, Willdenowia 44: 190. 2014.
Data
Hottarum lucens - J.Bogner 1439 [K] - ISOTYPE - [= Bakoa lucens]
Data
Schottarum sarikeense (Bogner & M.Hotta) P.C.Boyce & S.Y.Wong, Bot. Stud. (Taipei) 49(4): 395. 2008.
Data
Hottarum sarikeense - J.Bogner 1553 [K] - ISOTYPE [= Schottarum sarikeense]
Data
Hottarum sarikeense - J.Bogner 1553 [US] - ISOTYPE [= Schottarum sarikeense]
Data
Bucephalandra motleyana Schott - J.Motley 404 [K] - HOLOTYPE
Data
Bucephalandra motleyana Schott - J.Motley 404 [K] - HOLOTYPE
Data
Bucephalandra ultramafica S.Y.Wong & P.C.Boyce
Data
Bucephalandra muluensis (M.Hotta) S.Y.Wong & P.C.Boyce
Data
Bucephalandra chrysokoupa S.Y.Wong & P.C.Boyce
Article
Full-text available
The flowering mechanism, visiting insect activities, reproductive system, and floral scent composition of Schismatoglottis baangongensis a Northwest Bornean locally endemic limestone-restricted protogynous mesophyte were investigated. Anthesis started at dawn and lasted ca 29 h. Fruit set for open pollination (93 %) and restricted access pollinatio...
Article
Full-text available
Diagnosis — Schismatoglottis amosyui resembles S. liniae S. Y. Wong, S. matangensis S. Y. Wong, S. nervosa Ridl., S. simonii S. Y. Wong and S. turbata S. Y. Wong by the strongly aromatic vegetative tissues, erect stems, and cordate-elliptic leaves with conspicuous tessellate secondary venation, but differs by the spathe limb remaining green through...
Article
Full-text available
Homalomena squamis-draconis, a highly ornamental new dwarf species of Chamaecladon clade, is described and illustrated from Sumatera.
Article
Full-text available
Three new species of Homalomena (Chamaecladon clade) are described and illustrated from Sumatera (Sumatra), Indonesia: