Hoya ignorata (Apocynaceae, Asclepiadoideae): An Overlooked Species Widely Distributed across Southeast Asia

Tran The Bach ^[1] ; Joo-Hwan Kim ^[4] ; Dong-Kap Kim ^[4] ; Joongku Lee ^[2] ; Thu Ha Ha ^[3] ; N.S. Juhonewe ; M. Rodda ^[5]
1. [1] Vietnam Academy of Science and Technology
  
  Vietnam Academy of Science and Technology
  
  Vietnam
2. [2] Korea Research Institute of Bioscience and Biotechnology
  
  Korea Research Institute of Bioscience and Biotechnology
  
  Corea del Sur
3. [3] Hanoi National University of Education
  
  Hanoi National University of Education
  
  Vietnam
4. [4] Department of Life Science, Kyungwon University
5. [5] Singapore Botanic Gardens Herbarium, Singapore
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Localización: Novon: a journal for botanical nomenclature, ISSN 1055-3177, Vol. 21, Nº. 4, 2011, págs. 508-514
Idioma: inglés
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Resumen
- A new species, Hoya ignorata T. B. Tran, Rodda, Simonsson & Joongku Lee (Apocynaceae, Asclepiadoideae) is described and illustrated from Vietnam. The new taxon, widely distributed in Southeast Asia, does not seem to be related to any previously described Hoya R. Br., due to its small cupular coronas lacking lobes, and pendulous pollinia. These morphological characters, new for the genus Hoya, are discussed in light of the recent broadening of the circumscription of the genus following the results of molecular phylogenies and morphological studies.