Displaying all 5 publications

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  1. Kiew R, Sam YY
    PhytoKeys, 2012.
    PMID: 23717186 DOI: 10.3897/phytokeys.18.3487
    Codonoboea personatiflora Kiew & Y.Y.Sam, sp. nov., is described from lowland forest in the foothills in Terengganu, Peninsular Malaysia. It is unique in the genus in its personate flower. Its conservation status falls within the IUCN Endangered category.
  2. Syahida-Emiza S, Sam YY, Siti-Munirah MY
    PhytoKeys, 2020;165:51-62.
    PMID: 33192145 DOI: 10.3897/phytokeys.165.56955
    Two new Codonoboea species, C. kenaboiensis Syahida-Emiza, Y.Y.Sam & Siti-Munirah and C. ruthiae Syahida-Emiza, Y.Y. Sam & Siti-Munirah were discovered from the Kenaboi State Park, Peninsular Malaysia. Descriptions, illustrations, colour plates and provisional conservation status are provided.
  3. Sam YY, Takano A, Ibrahim H, Záveská E, Aziz F
    PhytoKeys, 2016.
    PMID: 28127243 DOI: 10.3897/phytokeys.75.9837
    A new genus from Borneo, Borneocola Y.Y.Sam, is described here. The genus currently contains eight species previously classified as members of the Scaphochlamys Baker. The finding is based on the results of the morphological and molecular studies of Scaphochlamys throughout its geographical range and its closely allied sister groups, Distichochlamys M.F.Newman and Myxochlamys A.Takano & Nagam. Borneocola is nested within the tribe Zingibereae and its monophyly is strongly supported by both ITS and matK sequence data. The genus is characterised by several thin, translucent and marcescent floral bracts, absence of coloured streaks on the labellum and capitate stigma with two dorsal knobs. The genus is distributed in northwest Borneo and all species are very rare and highly endemic.
  4. Lam NF, Ibrahim H, Sam YY, Mohammad Zakaria R, Poulsen AD
    PhytoKeys, 2022;211:81-92.
    PMID: 36760727 DOI: 10.3897/phytokeys.211.83985
    Two new species of Boesenbergia, B.sugudensis sp. nov. and B.truncata sp. nov. were discovered in Sabah, Malaysian Borneo. Boesenbergiasugudensis resembles B.imbakensis in that the leaf sheath of the plant is not thickened and in the anther thecae dehiscing by longitudinal slits, but differs in having a longer petiole and tubular calyx. Boesenbergiatruncata resembles B.orbiculata by the short petiole and a bilobed calyx, but differs by the truncate leaf base, the acute leaf apex, opposite leaves with a narrower lamina parallel to the ground and anther thecae dehiscing by pores. The new species are described and illustrated in detail.
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