Myxochlamys (Zingiberaceae), a new genus from Borneo

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A new genus and species, Myxochlamys mullerensis (Zingiberaceae) from Central Kalimantan, Borneo is described. This new species is characterized by indistinct pseudostems; congested inflorescences with spirally arranged bracts; copious, highly viscous, axillary-pooled mucus secreted from glands on imbricate bracts; and flowers with a concave labellum, versatile anthers, and a groove formed by the inner surface of the corolla tube to envelope and hold the style. Parallel orientation of the plane of distichy of the leafy shoots, well-developed staminodes, and labellum not connate with the filament suggest that Myxochlamys belongs to the tribe Zingibereae. Among the genera in Zingibereae, Myxochlamys is similar to Scaphochlamys in that it lacks a distinct pseudostem and spiral inflorescence; it is distinct from Scaphochlamys, however, in that it has a groove within the corolla tube, concave labellum and versatile anthers. Phylogenetic analyses based on DNA sequences of the nuclear internal transcribed spacer (ITS) and maturase K (matK) of the chloroplast DNA show similarity with Distichochlamys, Myxochlamys, and Scaphochlamys. The similarities and differences between Myxochlamys and related genera are discussed.

収録刊行物

  • APG : Acta phytotaxonomica et geobotanica   [巻号一覧]

    APG : Acta phytotaxonomica et geobotanica 58(1), 19-32, 2007-05-30  [この号の目次]

    日本植物分類学会

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各種コード

  • NII論文ID(NAID)
    110006290531
  • NII書誌ID(NCID)
    AA11586265
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13467565
  • データ提供元
    CJP書誌  NII-ELS 
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