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<p>This study contributes to the knowledge on the diversity of <i>Psychotria</i> in Vietnam, dealing with three of its species. <i>Psychotria magnifructa</i> is described as a new species based on the specimens recently collected in Kon Tum Province, central Vietnam. The new species is characterized by tomentose twigs and outer surface of stipules, horn-like projections on corolla lobes, and relatively larger fruits. <i>Psychotria monticola</i> is reported as a new record for Vietnam, expanding its known distribution eastward from India, Bangladesh, Myanmar, Peninsular Malaysia and Thailand. Information on <i>P. balansae</i> in the country is also provided. For the two latter species, the original material is analyzed, and lectotypes are designated. For each species, information on morphology, worldwide distribution, phenology, ecology, and a vernacular name is provided, as well as relevant notes and analytical photographic illustrations.</p>

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Novelties in Vietnamese Psychotria (Rubiaceae): P. magnifructa, a new species, P. monticola, a new national record, and notes on P. balansae

  • 期刊论文

  • 发表日期：

    2026年4月20日

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  • Quoc Bao Nguyen,
  • Quang Diep Dinh,
  • Van Son Dang,
  • Shuichiro Tagane,
  • Ba Vuong Truong,
  • Van Toan Em Quach,
  • Van Huong Bui,
  • Hong Quang Bui,
  • Duc Binh Tran,
  • Maxim S. Nuraliev,
  • Alexander N. Sennikov,
  • Tuan Anh Le,
  • Tran Vy Nguyen

摘要

This study contributes to the knowledge on the diversity of Psychotria in Vietnam, dealing with three of its species. Psychotria magnifructa is described as a new species based on the specimens recently collected in Kon Tum Province, central Vietnam. The new species is characterized by tomentose twigs and outer surface of stipules, horn-like projections on corolla lobes, and relatively larger fruits. Psychotria monticola is reported as a new record for Vietnam, expanding its known distribution eastward from India, Bangladesh, Myanmar, Peninsular Malaysia and Thailand. Information on P. balansae in the country is also provided. For the two latter species, the original material is analyzed, and lectotypes are designated. For each species, information on morphology, worldwide distribution, phenology, ecology, and a vernacular name is provided, as well as relevant notes and analytical photographic illustrations.