@article {3993, title = {Studies on Schismatoglottideae (Araceae) of Borneo XXXV {\textendash} Seven New species of Aridarum}, journal = {Aroideana; Journal of the International Aroid Society}, volume = {37}, year = {2014}, pages = {32}, chapter = {9}, abstract = {

Seven new species of Aridarum are described and illustrated: Aridarum pendek S.Y.Wong, S.L.Low \& P.C.Boyce and A. velutandrum S.Y.Wong, S.L.Low \& P.C. Boyce [Sarawak, Malaysian Borneo]; A. alatense S.Y.Wong, S.L.Low \& P.C.Boyce, A. surukense S.Y.Wong, S.L.Low \& P.C. Boyce, and A. zygosetum S.Y.Wong, S.L.Low \& P.C.Boyce [Kalimantan Barat and Kalimantan Tengah, Indonesian Borneo]; and A. hebe S.Y.Wong, S.L.Low \& P.C.Boyce [Kalimantan Utara, Indonesian Borneo]. Aridarum caulescens var. angustifolium Bogner \& Nicolson is shown to represent a further undescribed species from Sarawak, and is here published as Aridarum orestum S.Y.Wong, S.L.Low \& P.C.Boyce. Together these seven novelties take the genus Aridarum to 21 accepted, described species. An identification key to all species is provided.

}, keywords = {Araceae, Aridarum, Borneo, Indonesia, Kalimantan, Malaysia, rheophytic., Sarawak}, author = {WONG SIN YENG and LOW SHOOK LING and Peter C. Boyce} } @article {3992, title = {Studies on Homalomeneae (Araceae) of Borneo XV: A Novel Limestone-Obligated Homalomena from SW Sarawak, Malaysian Borneo}, journal = {Aroideana; Journal of the International Aroid Society}, volume = {37}, year = {2014}, pages = {43}, chapter = {38}, abstract = {

Homalomena selaburensis P.C.Boyce \& S.Y.Wong is described as a taxonomic novelty of the Homalomena Supergroup from forested Karst limestone in Samarahan Division, SW Sarawak, and compared with the most similar species described so far from Sarawak (Homalomena passa S.Y.Wong \& P.C.Boyce), and from Peninsular Malaysia (Homalomena curvata Engl.). An identification key is provided and Homalomena selaburensis is illustrated from living plants.

}, keywords = {Araceae, Borneo, Homalomena, limestone., Malaysia, Sarawak}, author = {Peter C. Boyce and WONG SIN YENG} } @article {3991, title = {Studies on Homalomeneae (Araceae) of Borneo XIV {\textendash} A New Rheophytic Species of Homalomena from Sarawak, Malaysian Borneo}, journal = {Aroideana; Journal of the International Aroid Society}, volume = {37}, year = {2014}, pages = {37}, chapter = {33}, abstract = {

Homalomena stella P.C.Boyce \& S.Y.Wong is described as a new rheophytic species and illustrated from living plants. Based on several shared morphological characteristics the possible affinity of H. stella with Homalomena havilandii Ridl. is highlighted.

}, keywords = {Araceae, Borneo, Homalomena, Malaysia, rheophytic, Sarawak}, author = {Peter C. Boyce and WONG SIN YENG} } @article {3979, title = {Studies on Homalomeneae (Araceae) of Sumatera I: Homalomena hypsiantha, a distinctive new species of the Chamaecladon Supergroup}, journal = {Webbia; Raccolta de Scritti Botanici. Florence}, volume = {67}, year = {2012}, pages = {150}, chapter = {147}, abstract = {

Studi sulle Homalemeneae (Araceae) di Sumatra I: Homalomena hypsiantha, nuova specie del Supergruppo Chamaecladon \— Viene descritta una rimarchevole e ben distinta nuova specie appartenente al genere Homalomena per Sumatra: Homalomena hypsiantha P.C. Boyce \& S.Y. Wong, sp. nov. La morfologia dell\’infi orescenza attribuisce questa nuova specie al Supergruppo Chamaecladon, tra le cui altre specie descritte la presente si distingue per la sua evidente peduncolata infi orescenza, e per la spata fortemente espansa all\’antesi. Viene fornita una breve revisione dello stato tassonomico delle specie di Alderwerelt per Sumatra appartenenti al Supergruppo Chamaecladon. Homalomena hypsiantha e\’ illustrata is illustrated da esemplari vivi.

}, keywords = {Araceae, Chamaecladon Supergroup, Homalomena hypsiantha, Indonesia, Sumatera}, author = {Peter C. Boyce and WONG SIN YENG} } @article {3977, title = {Schismatoglottideae (Araceae) of Borneo XIX {\textendash} Piptospatha pileata, a remarkable new species from Kalimantan Timur, Indonesian Borneo}, journal = {Willdenowia. Mitteilungen aus dem Botanischen Garten und Museum Berlin-Dahlem. Berlin-Dahlem}, volume = {42}, year = {2012}, month = {12/2012}, pages = {253}, chapter = {247}, abstract = {

Piptospatha pileata, a new species of the Araceae tribe Schismatoglottideae from Kalimantan Timur province, Indonesian Borneo, is described, comparatively illustrated and delimited from P. burbidgei and P. elongata, and included in a revised key to the species of the genus.

}, keywords = {aroids, identification key, Piptospatha burbidgei, Piptospatha elongata, taxonomy}, issn = {1868-6397}, doi = {10.3372/wi.42.42209}, url = {http://dx.doi.org/10.3372/wi.42.42209}, author = {WONG SIN YENG and Peter C. Boyce} } @article {3972, title = {Studies on Schismatoglottideae (Araceae) of Borneo XXIV {\textendash} Two new species of Aridarum from Kalimantan, and notes on the Aridarum Burttii Complex}, journal = {Willdenowia. Mitteilungen aus dem Botanischen Garten und Museum Berlin-Dahlem. Berlin-Dahlem}, volume = {42}, year = {2012}, month = {12/2012}, pages = {268}, chapter = {261}, abstract = {

Two taxonomically novel Aridarum species, A. kazuyae and A. orientale, are described from Kalimantan Timur, Indonesian Borneo. They are most similar to A. burttii from Sarawak, and together with A. minimum from Kalimantan Barat represent a morphotaxon, here called the Burttii Complex, defined by staminate flowers comprised of one stamen with an obliquely excavated expanded connective, hemispherical interstice staminodes, a spathe limb deliquescing acroscopically from its junction with the lower persistent portion and leaf blades with adaxially prominently raised primary lateral veins. Recognition of the new species proposed here takes the genus Aridarum to 12 accepted species. A key to all Aridarum species is provided, the two new species are illustrated and a comparison plate of the spadices of the four species assigned to the Burttii Complex as well as notes on the defining morphological features of this species group and some brief observations on pollination are given.

}, keywords = {Aridarum kazuyae, Aridarum orientale, aroids, Indonesia, rheophyte, taxonomy}, issn = {1868-6397}, doi = {10.3372/wi.42.42211}, url = {http://dx.doi.org/10.3372/wi.42.42211}, author = {WONG SIN YENG and Peter C. Boyce and LOW SHOOK LING} } @article {3689, title = {Studies on Homalomeneae (Araceae) of Borneo XVII: two new species of granite-restricted Homalomena from NW Sarawak}, journal = {Webbia; Raccolta de Scritti Botanici. Florence}, volume = {69}, year = {2014}, pages = {74}, chapter = {69}, abstract = {

Homalomena caput-gorgonis S.Y. Wong and P.C. Boyce and Homalomena succincta S.Y. Wong and P.C. Boyce are described as taxonomic novelties respectively of the Selaburensis and Giamensis complexes from the foothills of Gunung Pueh, northwest Sarawak, where both are restricted to granite. Both species are illustrated from the Type collections. Identification keys to the species of the Giamensis and Selaburensis complexes are presented.

}, keywords = {Araceae, granite, Gunung Pueh, Homalomena, Homalomeneae, Malaysian Borneo}, doi = {http://dx.doi.org/10.1080/00837792.2014.917512}, author = {WONG SIN YENG and Peter C. Boyce} } @article {3688, title = {Studies on Homalomeneae (Araceae) of Borneo XVI: three new shale-obligated Homalomena species}, journal = {Webbia; Raccolta de Scritti Botanici. Florence}, volume = {69}, year = {2014}, pages = {67}, chapter = {59}, abstract = {

Homalomena cowleyae P.C. Boyce \& S.Y. Wong, Homalomena imitator P.C. Boyce \& S.Y. Wong, and Homalomena mutans P.C. Boyce \& S.Y. Wong are described and illustrated as new species obligated to tropical forested shales.

}, keywords = {Araceae; Homalomeneae; Homalomena; Malaysian Borneo; Brunei; shales}, doi = {http://dx.doi.org/10.1080/00837792.2014.911589}, author = {Peter C. Boyce and WONG SIN YENG} } @article {3661, title = {Schottarum (Schismatoglottideae: Araceae) substantiated based on combined nuclear and plastid DNA sequences}, journal = {Plant Systematics and Evolution. Vienna, New York}, volume = {300}, year = {2014}, pages = {617}, chapter = {607}, abstract = {

Recent studies on Schismatoglottideae have resulted in the recognition of four new monophyletic genera, the resurrection of two additional genera following clarification of their monophyly, and the publication of many taxonomically novel species. However, generic boundaries among some parts of Schismatoglottideae remain unclear owing to several reasons: (1) more taxa are being revealed through our on-going fieldwork, now expanded to previously unsampled localities on Borneo; (2) established occurrence of a high level of homoplasies among the morphological characteristics hitherto used to delimitate genera; and (3) gene regions used in previous studies contradicted some of current taxonomic placements. Among the unsolved groups from previous studies a clade comprising Schismatoglottis sarikeensis and S. josefii needs further investigation. Therefore, phylogenetic analyses were carried out to investigate the position of these two species using the nuclear region, internal transcribed spacer and combined plastid regions: trnL intron and trnLF intergenic spacer, coding matK?partial 30 trnK, intergenic spacer trnH-psbA. A total of 23 accessions representing 16 taxa of Schismatoglottideae and Philonotieae were included in the study. Phylogenetic analyses of a total 4,658 bp combined dataset using parsimony, maximum likelihood, and Bayesian methods revealed that S. sarikeensis and S. josefii do not belong to Schismatoglottis, and therefore are transferred to Schottarum (:Hottarum sarikeense: Schismatoglottis sarikeense). Flowering mechanism, pollination strategy, and fruitset of S. sarikeense are also presented in the paper.

}, keywords = {Borne, Flowering mechanism, phylogeny, pollination, taxonomy}, doi = {10.1007/s00606-013-0906-7}, author = {Shook Ling Low and Sin Yeng Wong and Peter C. Boyce} } @article {3649, title = {Studies on the Araceae of the Lesser Sunda Islands I: New distribution records for Alocasia alba}, journal = {Gardens{\textquoteright} Bulletin. Singapore}, volume = {65}, year = {2013}, pages = {162}, chapter = {157}, abstract = {

Alocasia alba Schott is a new record for the islands of Bali and Lombok, in the Indonesian Lesser Sunda Islands. An expanded description is given, and the species illustrated from living plants. A key to species of Alocasia for the Lesser Sunda Islands is provided.

}, keywords = {Alocasia alba, aroids, Indonesia, Lesser Sunda Islands, new record}, author = {Agung Kurniawan and Ni Putu Sri Asih and Yuzammi and Peter C. Boyce} } @article {3639, title = {Englerarum (Araceae, Aroideae): a new genus supported by plastid and nuclear phylogenies}, journal = {Plant Systematics and Evolution. Vienna, New York}, volume = {300}, year = {2014}, month = {09/2013}, pages = {715}, chapter = {709}, abstract = {

The new monotypic genus Englerarum Nauheimer \& P.C.Boyce, with the only species Englerarum hypnosum (J.T.Yin, Y.H.Wang \& Z.F.Xu) Nauheimer \& P.C.Boyce, is here described. The new combination of Alocasia hypnosa J.T.Yin, Y.H.Wang \& Z.F.Xu, with exclusion of Alocasia (Schott) G.Don and transfer into Englerarum, is based on molecular phylogenies using plastid and nuclear data. The plant occurs on forested limestone outcrops in tropical and subtropical continental Southeast Asia, ranging from Southwest China, through the Lao PDR, and into North and Southeast Thailand.
Englerarum represents an isolated lineage in the basal Pistia-clade. Its inclusion into the phylogenetic framework provides new insights into the evolution of this clade, and into the morphological characters used to distinguish the close related genera Alocasia and Colocasia.

}, keywords = {Alocasia hypnosa, Colocasioideae, Limestone, Southeast Asia, SW China}, issn = {0378-2697}, doi = {10.1007/s00606-013-0914-7}, url = {http://link.springer.com/article/10.1007\%2Fs00606-013-0914-7}, author = {Lars Nauheimer and Peter C. Boyce} } @article {3634, title = {Studies on Homalomeneae (Araceae) of Borneo XVIII: Homalomena prolixa and H. scutata, two new species of doubtful affinity}, journal = {Willdenowia. Mitteilungen aus dem Botanischen Garten und Museum Berlin-Dahlem. Berlin-Dahlem}, volume = {44}, year = {2014}, pages = {285}, chapter = {279}, abstract = {

Wong S. Y. \& Boyce P. c.: Studies on Homalomeneae (Araceae) of Borneo XVIII: Homalomena prolixa and H. scutata, two new species of doubtful affinity. \– Willdenowia 44: 279 \– 285. 2014. \– Version of record first published online on 15 July 2014 ahead of inclusion in August 2014 issue; ISSN 1868-6397; \© 2014 BGBM Berlin-Dahlem.
DOI: http://dx.doi.org/10.3372/wi.44.44210
Two taxonomically novel species of Homalomena (Araceae: Homalomeneae), H. prolixa S. Y. Wong \& P. C.\ Boyce and H. scutata S. Y. Wong \& P. c.\ Boyce, both of doubtful taxonomic affinity, are described from SW Sarawak, and from Brunei and adjacent NE Sarawak, Borneo, respectively. Both occur as lithophytes on forested sandstone bluffs.

}, keywords = {aroids, Brunei, Malaysian Borneo, Sarawak}, author = {WONG SIN YENG and Peter C. Boyce} } @article {3548, title = {The Araceae of Indomalaya I: Piptospatha N.E.Br.}, journal = {Aroideana; Journal of the International Aroid Society}, volume = {35}, year = {2012}, pages = {23}, chapter = {3}, abstract = {

A review of the genus Piptospatha N.E.Br. is presented with new generic boundaries implemented since the last full revision. 10 species are recognized, two of them (P. marginata (Engl.) N.E.Br. \& P. repens H.Okada \& Tsukaya) recognized\  only recently as distinct species. Two species (P. angustifolia Engl. ex Alderw. and P. remiformis Ridl.) are treated as\  inadequately known. A key to accepted species is given, and all species are illustrated, the majority from living plants.

}, keywords = {Araceae, Borneo., Indomalaya, Piptospatha, Schismatoglottideae, Sunda}, author = {Peter C. Boyce and WONG SIN YENG} } @article {3516, title = {Studies on Homalomeneae (Araceae) of Borneo IX: A New Species of Homalomena Supergroup Chamaecladon from Kalimantan Timur, Indonesian Borneo}, journal = {Aroideana; Journal of the International Aroid Society}, volume = {34}, year = {2011}, pages = {36}, chapter = {30}, abstract = {

Homalomena agens is described and illustrated as a new species of the Chamaecladon Supergroup from Kalimantan Timur, Indonesian Borneo. A brief overview of the recent publication history of Hamalomena in the humid Asian tropics, together with a review of the taxonomy of the Chamaecladon Supergroup in Borneo, and a key to described species in Borneo, is provided.

}, keywords = {Araceae, Borneo, Chamaecladon Supergroup., Homalomena, Indonesia, Kalimantan}, author = {Agung Kurniawan and Ni Putu Sri Asih and Bayu Adjie and Peter C. Boyce} } @article {3515, title = {Studies on Homalomeneae (Araceae) of Peninsular Malaysia V: Homalomena wallichii, Refound after over 190 Years}, journal = {Aroideana; Journal of the International Aroid Society}, volume = {34}, year = {2011}, pages = {29}, chapter = {24}, abstract = {

Homalomena wallichi, collected just once since 1822 has long languished in taxonomic obscurity. It has recently been refound in the wild after more than 190 years and is here reinstated as a taxonomically sound species and as endemic to Peninsular Malaysia. Images of Wallich\&$\#$39;s original collection, and of the living plant in flower, are provided.

}, keywords = {Araceae, Homalomena, Homalomena Supergroup, Peninsular Malaysia, Pinang.}, author = {Baharuddin Sulaiman and Peter C. Boyce} } @article {3509, title = {Studies on Schismatoglottideae (Araceae) of Borneo XXXIX: Schismatoglottis persistens, a new rhizomatous rheophytic species for the Schismatoglottis Multiflora Group}, journal = {Willdenowia. Mitteilungen aus dem Botanischen Garten und Museum Berlin-Dahlem. Berlin-Dahlem}, volume = {44}, year = {2014}, month = {08/2014}, pages = {251}, chapter = {247}, abstract = {

Wong S. Y. \& Boyce P. C.: Studies on Schismatoglottideae (Araceae) of Borneo XXXIX: Schismatoglottis persistens, a new rhizomatous rheophytic species for the Schismatoglottis Multiflora Group. \– Willdenowia 44: 247 \– 251. 2014. \– Version of record first published online on 8 July 2014 ahead of inclusion in August 2014 issue; ISSN 1868-6397;
\© 2014 BGBM Berlin-Dahlem.

DOI: http://dx.doi.org/10.3372/wi.44.44206

A new rheophytic species of Schismatoglottis, S. persistens S. Y. Wong \& P. C. Boyce is described from Sri Aman Division, Sarawak, Malaysian Borneo. It is remarkable in the genus by the combination of a creeping, rooting, rhizome-like stem and persistent ligules at the tip of the petiolar sheath.

}, keywords = {aroids, Malaysian Borneo, rheophyte, Sarawak, Sri Aman Division}, author = {WONG SIN YENG and Peter C. Boyce} } @article {3503, title = {Studies on Homalomeneae (Araceae) of Borneo VI: Homalomena giamensis, a New Species from Sarawak, Malaysian Borneo, with Observations on its Pollination}, journal = {Aroideana}, volume = {33}, year = {2010}, pages = {211}, chapter = {201}, abstract = {

A new species, Homalomena giamensis L.S.Tung, S.Y.Wong \& P.C.Boyce, is described and illustrated from karst limestone formations at Kampung Giam, Kuching Division, SW Sarawak, to where it is locally endemic. As part of an ongoing project to investigate triggers and barriers in speciation processes in Homalomena, observations of the pollination of Homalomena giamensis were undertaken to record inflorescence mechanics, interactions with insect visitors, and determine the pollinator. Five insect genera visited during anthesis-Diptera: Drosophilidae (Colocasiomyia); Coeleoptera: Chrysomelidae: (Chaloenus \& Dercetina sp.); Nitidulidae (genus undetermined), and Scarabaeidae: Rutelinae (Parastasia bimaculata Guerin). The pollinator was determined to be the ruteline scarab. Parastasia bimaculata is a rather widespread species in tropical Asia, and has previously recorded as a pollinating agent for one Bornean Homalomena. A review of pollination studies of tropical Asian aroids to date is given.

}, keywords = {Araceae, Borneo., Coleoptera, Homalomena giamensis, karst limestone, Parastasia bimaculata, pollination, Rutelinae, Sarawak, Scarabaeidae}, author = {Tung Lay Soon and WONG SIN YENG and Peter C. Boyce} } @article {3403, title = {Studies on Schismatoglottideae (Araceae) of Borneo XXXIII {\textendash} A review of the Schismatoglottis Tecturata Group, including description of a new species, Schismatoglottis evelyniae}, journal = {Aroideana; Journal of the International Aroid Society}, volume = {36E}, year = {2013}, month = {12/2013}, pages = {15}, chapter = {4}, abstract = {

Schismatoglottis evelyniae P.C.Boyce \& S.Y.Wong is described as a taxonomically new species in the Tecturata Group, morphologically most similar to Schismatoglottis platystigma M.Hotta and S. petri A. Hay. Schismatoglottis evelyniae, S. platystigma, S. petri, and S. tecturata are illustrated from living plants. A key to the species of the Schismatoglottis Tecturata Group is provided.

}, keywords = {Araceae, Borneo, Malaysia, Sarawak, Schismatoglottideae, Schismatoglottis}, issn = {2310-0745}, author = {Peter C. Boyce and WONG SIN YENG} } @article {3369, title = {Studies on Schismatoglottideae (Araceae) of Borneo XXXVII {\textendash} Three enigmatic new species of Schismatoglottis from the "Heart of Borneo"}, journal = {Aroideana}, volume = {37E}, year = {2014}, pages = {28}, chapter = {17}, abstract = {

Three new species of Schismatoglottis of uncertain taxonomic affinity (S. camera-lucida P.C.Boyce \& S.Y.Wong, S. gampsospadix P.C.Boyce \& S.Y.Wong, and S. gui P.C.Boyce \& S.Y.Wong) are described and illustrated from the north western part of the \“Heart of Borneo\”.

}, keywords = {Araceae, Borneo, Indonesia, Kalimantan., Malaysia, Sarawak, Schismatoglottis}, author = {Peter C. Boyce and WONG SIN YENG} } @article {3273, title = {Studies on Homalomeneae (Araceae) of Borneo XIII {\textendash} New Species of Homalomena}, journal = {Aroideana; Journal of the International Aroid Society}, volume = {36}, year = {2013}, pages = {29}, chapter = {8}, abstract = {

Five new Homalomena species are described from Sarawak, Malaysian Borneo: H. baangongensis L.S.Tung \& Y.C.Hoe, H. gastrofructa S.Y.Wong, Y.C.Hoe \& P.C.Boyce, H. ibanorum S.Y.Wong \& P.C.Boyce, H. passa S.Y.Wong \& P.C.Boyce, and H. velutipedunculata S.Y.Wong, Y.C.Hoe \& P.C.Boyce. Based on morphological characteristics they are assigned to the Giamensis Complex [H. baangongensis], Hanneae Complex [H. gastrofructa, H. velutipedunculata], and Borneensis Complex [H. ibanorum] of the Cyrtocladon Supergroup, and to the Selaburensis Complex [H. passa] of the Homalomena Supergroup. Keys to informal taxa of Bornean Homalomena, and to the species of the above mentioned species complexes are provided. All described novelties are illustrated from living plants, and a comparative plate of the spadix of the five described species of the Borneensis Complex is provided.

}, keywords = {Araceae, Borneo, Homalomena, Sarawak}, author = {WONG SIN YENG and Hoe Yin Chen and Tung Lay Soon and Peter C. Boyce} } @article {3177, title = {Studies on Homalomeneae (Araceae) of Borneo V: A new species, and new supergroup record, of Homalomena from Sabah, Malaysian Borneo}, journal = {Tropical Life Sciences Research}, volume = {21}, year = {2010}, pages = {94}, chapter = {89}, abstract = {

Homalomena galbana Baharuddin S. \& P.C.Boyce is described from the Maliau Basin Conservation Area, Sabah, representing the first species of the Homalomena Supergroup to be recorded from Sabah, and the first mesophytic species of the Supergroup to be described from Borneo. The species is illustrated and a brief discussion on the pollination role of interpistillar staminodes is presented.

}, author = {Baharuddin Sulaiman and Peter C. Boyce} } @article {3154, title = {Studies on Schismatoglottideae (Araceae) of Borneo XXXIV {\textendash} Schismatoglottis iliata, a new species from NW Sarawak, and notes on the Schismatoglottis Multiflora Group and the Schismatoglottis mayoana Complex}, journal = {Willdenowia. Mitteilungen aus dem Botanischen Garten und Museum Berlin-Dahlem. Berlin-Dahlem}, volume = {44}, year = {2014}, pages = {11}, chapter = {5}, abstract = {

A summary of the Schismatoglottis Multiflora Group of Hay \& Yuzammi is presented and the group shown to comprise about 15 species, including that described here. Schismatoglottis iliata P. C. Boyce \& S. Y. Wong is described as a taxonomic novelty from forested sandstone riverside bluffs of the Ulu Batang Kayan, Lundu District, Kuching Division, NW Sarawak, Malaysian Borneo, and compared with the morphologically most similar species, S. mayo\­ ana Bogner \& M. Hotta and S. nicolsonii A. Hay, with which S. iliata shares leaf blades adaxially matt olive green and abaxially with very fine and dense (c. 2 veins per mm) pellucid secondary venation, and stamen thecae each with two pores. A key to this newly recognized S. mayoana Complex is provided, and all described species for the S. mayoana Complex are illustrated.

}, keywords = {aroids, identification key, Kuching Division, Malaysian Borneo, taxonomy}, author = {WONG SIN YENG and Peter C. Boyce} } @article {2667, title = {Studies on Monstereae (Araceae) of Peninsular Malaysia II: Rhaphidophora latevaginata, Newly Recorded for West Malaysia}, journal = {Gardens{\textquoteright} Bulletin. Singapore}, volume = {62}, year = {2010}, pages = {8}, chapter = {1}, author = {Ahmad Sofiman bin Othman and Peter C. Boyce} } @article {2663, title = {Studies on Monstereae (Araceae) of Peninsular Malaysia 1: Rhaphidophora megasperma, a New Record for West Malaysia}, journal = {Tropical Life Sciences Research}, volume = {21}, year = {2010}, pages = {6}, chapter = {1}, abstract = {

Rhaphidophora megasperma Engl., a species hitherto regarded as endemic to Sarawak, East Malaysia, is published as a new record for Peninsular Malaysia. It is the first species in the Rhaphidophora Spathacea group recorded for western Sunda. The species is illustrated and a key to the perforate-laminated Rhaphidophora in Peninsular Malaysia is presented.

}, keywords = {Araceae, Borneo, Rhaphidophora, Sarawak}, author = {Baharuddin Sulaiman and Peter C. Boyce} } @article {2637, title = {Studies on Schismatoglottideae (Araceae) of Borneo XIV: Piptospatha marginata resurrected and observations on Piptospatha, notably for the Rejang drainages}, journal = {Webbia; Raccolta de Scritti Botanici. Florence}, volume = {66}, year = {2011}, pages = {32}, chapter = {29}, keywords = {Araceae, Borneo, Piptospatha, Rejang, Sarawak}, author = {Wong, Sin Yeng and Josef Bogner and Peter C. Boyce} } @article {2614, title = {Studies on Schismatoglottideae (Araceae) of Borneo XX: Beccari{\textquoteright}s {\guillemotleft}La Pi{\`u} piccola delle Aracee{\guillemotright}(Microcasia pygmaea) recollected and transferred to Bucephalandra Schott}, journal = {Webbia}, volume = {67}, year = {2012}, pages = {146}, chapter = {139}, abstract = {

Studi sulle Schismatoglottideae (Araceae) del Borneo XX: \«La pi\ù piccola delle Araceae\» del Beccari (Microcasia pygmaea) riscoperta e trasferita a Bucephalandra Schott \— Dopo circa 145 anni \è stata riscoperta Microcasia pygmaea Becc. Una attenta indagine rivela, contrariamente a recenti trattamenti tassonomici, che \è da ritenersi una specie distinta del genere Bucephalandra, ma tuttavia non conspecifi ca di B. motleyana Schott. Microcasia pygmaea Becc. Viene qui trasferita in Bucephalandra come B. pygmaea (Becc.) P.C. Boyce \& S.Y. Wong, comb. nov. Vengono fornite alcune note tassonomiche basate sulla morfologia. Bucephalandra \è considerato comprendere cinque specie, esposte in una nuova chiave identifi cativa. Vengono anche fornite note tassonomiche su Bucephalandra e Microcasia, e B. pygmaea viene illustrata da piante vive.

}, keywords = {Araceae, Borneo, Bucephalandra, Malaysia, Microcasia, Sarawak, Schismatoglottideae}, author = {Peter C. Boyce and Wong Sin Yeng,} } @article {2608, title = {Studies on Schismatoglottideae (Araceae) of Borneo XXVI Schismatoglottis scintillans, a new species with horticultural potential from Sabah, Malaysian Borneo}, journal = {Willdenowia-Annals of the Botanic Garden and Botanical Museum Berlin-Dahlem}, volume = {43}, year = {2013}, pages = {90}, chapter = {87}, abstract = {

Schismatoglottis scintillans Scherberich \& P. C. Boyce sp. nov., a taxonomic novelty with horticultural potential, is described from Sabah, Malaysian Borneo. Schismatoglottis scintillans belongs to the Calyptrata Group by the presence of hapaxanthic shoot modules, but differs from all species hitherto described for this Group by the combination of refractive variegated leaf blades, a pistillate flower zone extensively adnate to the spathe, a staminate flower zone only half exserted from the lower spathe portion, and a bullet-shaped appendix basally abruptly wider than the adjacent top of the staminate flower zone. The new species is keyed out and illustrated from living plants.

}, keywords = {Calyptrata Group}, doi = {http://dx.doi.org/10.3372/wi.43.43109}, author = {David Scherberich and Peter C. Boyce} } @article {2607, title = {Studies on Schismatoglottideae (Araceae) of Borneo XXVII{\textendash}New species of Aridarum, and notes on the Aridarum Rostratum Complex.}, journal = {Willdenowia}, volume = {43}, year = {2013}, pages = {99}, chapter = {91}, abstract = {

Two taxonomically novel Aridarum species are described from Kalimantan Barat, Indonesian Borneo: A. hippocrepis P. C. Boyce \& S. Y. Wong and A. uncum P. C. Boyce \& S. Y. Wong. Together with A. rostratum Bogner \& A. Hay (also Kalimantan Barat) these form a morphologically distinct group of unistaminate Aridarum species, here informally dubbed the Aridarum Rostratum Complex, differing from those of the (also unistaminate) Burttii Complex by the inflorescence pendent on an arching to pendent wiry peduncle, by staminate flowers lacking a distally expanded connective, the presence of horseshoe-shaped interstice staminodes that expand laterally post pistillate anthesis and prior to staminate anthesis, by the spathe limb hardly opening at pistillate anthesis and deliquescing acroscopically during staminate anthesis, and by the narrowly campanuliform (not salverform) persistent lower spathe. The Rostratum Complex is further differentiated by leaf blades lacking the adaxially conspicuously raised primary lateral veins that are a characteristic of the Burttii Complex. Recognition of these two new species takes the genus Aridarum to 14 accepted species. An emended species description of A. rostratum is presented and a key to species of the Rostratum Complex is provided. All species are illustrated from living plants, and a comparative plate of the spadices of the three species assigned to the Rostratum Complex is also provided.

}, keywords = {granite, Indonesia, Kalimantan Barat, rheophytic, sandstone}, author = {Peter C. Boyce and WONG SIN YENG} } @article {2605, title = {Studies on Schismatoglottideae (Araceae) of Borneo XXV: a diminutive new Piptospatha from Sabah}, journal = {Webbia: Journal of Plant Taxonomy and Geography}, volume = {68}, year = {2013}, pages = {5}, chapter = {3}, abstract = {

A diminutive new species of Piptospatha, P. loi P.C. Boyce and S.Y. Wong, is described from waterfalls over basalt in E Sabah. Overall, it is most similar to P. pileata S.Y. Wong and P.C. Boyce (Kalimantan Timur, obligated to shales), but differs in several features of the inflorescences and leaves. The new species is illustrated from living plants.

}, keywords = {Araceae; Borneo; Piptospatha; Malaysia; Sabah; Schismatoglottideae}, doi = {http://dx.doi.org/10.1080/00837792.2013.779814}, author = {Peter C. Boyce and WONG SIN YENG} } @article {122, title = {Hapaline appendiculata (Araceae: Caladieae) Rediscovered}, journal = {Gardens{\textquoteright} Bulletin. Singapore}, volume = {57}, year = {2005}, pages = {18}, chapter = {13}, abstract = {

Hapaline appendiculata Ridl., a species endemic to Sarawak, Borneo, and hitherto known from only three collections, has recently been recollected. An expanded description for the species, first ever published field photographs and a key to Hapaline in Borneo is presented.

}, author = {Peter C. Boyce and Jelend Ak Kisai and Jepom Ak Tisai} }