Molecular phylogeny and morphology reveal a new epiphytic species of Habenaria (Orchidaceae; Orchideae; Orchidinae) from Nepal
Autoři:
Bhakta Bahadur Raskoti aff001; Rita Ale aff001
Působiště autorů:
Nature Research and Conservation Initiatives, Pokharathok, Arghakhanchi, Nepal
aff001; Nepal Bioscience Research Laboratory, Banasthali, Kathmandu, Nepal
aff002
Vyšlo v časopise:
PLoS ONE 14(10)
Kategorie:
Research Article
doi:
https://doi.org/10.1371/journal.pone.0223355
Souhrn
Habenaria is almost cosmopolitan in distribution having predominantly terrestrial orchids, however; a remarkable epiphytic species with some unique morphological characters was collected from Nepal. We conducted a molecular phylogeny of this unusual Habenaria species using nuclear (ITS) and chloroplast (matK, rbcl) DNA sequence regions to infer its systematic position. Our molecular analyses and morphological treatment recognized this newly collected plant as an undescribed species. This species is described here which is closely related to Habenaria plurifoliata but can be distinguished by having its multiple growing callus-shaped tuber, smaller stature with short stem, longer and wider oblanceolate leaves, peduncle with a foliaceous bract and only one sterile bract, lateral sepals oblong, obtuse, petal apex obtuse, lateral lobes of lip spreading upwards, spur not exceeding the ovary and pedicel.
Klíčová slova:
Chloroplasts – New species reports – Petals – Phylogenetic analysis – Phylogenetics – Sepals – Tubers – Plant ovary
Zdroje
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PLOS One
2019 Číslo 10
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