Skip to main content

Open Access Kalimantanorchis: a New Genus of Mycotrophic Orchid from West Kalimantan, Borneo

Download Article:
 Download
(PDF 1166.505859375 kb)
 

Abstract:

A new genus and species of mycotrophic orchid (Orchidaceae), Kalimantanorchis nagamasui Tsukaya, M. Nakajima et H. Okada, from Betung Kerihun National Park, West Kalimantan, Borneo, Indonesia, is described and illustrated. Kalimantanorchis resembles the genus Tropidia Lindl. in flower and stem morphology, namely, mycotrophic habit, branching stem, nonresupinate flowers with a saccate cymbiform lip bearing two longitudinal ridges along the margins, broadly triangular rostellum, acute, triangular anther cap, and winged or three-lobed column. It differs, however, in having a tuberous root system, pure ivory-white flower coloration and four pollinia. BLAST analyses based on DNA sequences of the chloroplast matK pseudogene and ITS of the nuclear ribosomal DNA also suggest that the closest genus is Tropidia Lindl., but the similarity is low and a molecular phylogenetic analysis did not support it to be a member of Tropidia, confirming the idea that this is an undescribed genus.

Keywords: BORNEO; KALIMANTAN; KALIMANTANORCHIS NAGAMASUI; MYCOTROPHIC ORCHID; NEW GENUS; ORCHIDACEAE

Document Type: Research Article

DOI: https://doi.org/10.1600/036364411X553117

Publication date: 2011-02-01

More about this publication?
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more