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SYSTEMATIC STUDIES OF BORNEAN ZINGIBERACEAE IV. ALPINIOIDEAE OF LAMBIR HILLS, SARAWAK

Published online by Cambridge University Press:  07 October 2003

SHOKO SAKAI
Affiliation:
University of Tsukuba, Institute of Biological Sciences, Tsukuba, Ibaraki 305-8572, Japan
HIDETOSHI NAGAMASU
Affiliation:
The Kyoto University Museum, Kyoto University, Sakyo, Kyoto 606-8501, Japan
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Abstract

This paper completes an account of the subfamily Alpinioideae (Zingiberaceae) of Lambir Hills National Park, Sarawak, Malaysia, started in the first paper of this series (Sakai & Nagamasu, 1998), which lists 12 Amomum species from the park. Twenty-two species in the genera Alpinia, Elettaria, Elettariopsis, Etlingera, Hornstedtia and Plagiostachys (Zingiberaceae) are reported from Lambir Hills, Sarawak, with systematic and ecological notes. Four species, Etlingera baramensis, E. inundata, E. newmanii and Plagiostachys glandulosa, are described as new to science, and Hornstedtia leonurus is reported from Borneo for the first time. In Etlingera inundata floral dimorphism is reported. The informal grouping of Etlingera proposed by Smith (1986b) is re-examined. Synonymies of Etlingera coccinea, Hornstedtia minor, H. affinis and H. phaeochoana and the generic position and synonymies of H. sarawacensis and H. conica are discussed. Lectotypes of Achasma brevilabrum (=Etlingera brevilabrum), Alpinia ligulata, Elettaria coccinea (=Etlingera coccinea), Elettaria speciosa (=Etlingera elatior) and Hornstedtia alliacea (=H. conica) are designated. Keys are also provided to all Bornean genera and species of Alpinioideae.

Type
Research Article
Copyright
2003, Trustees of the Royal Botanic Garden, Edinburgh

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