Dendrobium fuscifaucium (Orchidaceae: Epidendroideae: Dendrobieae), a new Laotian species only known in cultivation

Abstract

Dendrobium fuscifaucium is described here as a new species from Laos PDR. This species was found at a local nursery and was claimed to have been collected from the limestone mountains of Kasi District (Vientiane Province). Detailed description and comparison, comparison with its allied species, D. hekouense, D. luoi and D. wangliangii is provided, along with flowering phenology and information on habitat. Multiple attempts have failed to locate this species in the wild.

Two new distribution records of Dendrobium (Orchidaceae), with an updated checklist of Dendrobium for Laos

“…Dendrobium Sw. (Orchidaceae) is the largest orchid genus in Laos, so far accounting for 115 species (Averyanov et al, 2016a;Kumar & Gale, 2020;Souvannakhoummane et al, 2022). Many species of this genus in Laos are threatened by large-scale collecting for the illegal trade, which has been going on for decades, as these plants are in high demand in neighbouring countries (Schuiteman et al, 2008;Lovera & Laville, 2009;Gale et al, 2019).…”

“…comm. ;Schuiteman & Adams, 2011;Averyanov, 2012Averyanov, , 2013Averyanov et al, 2016a,b;Kumar et al, 2016;Kumar et al, 2018;Kumar & Gale, 2020;Souvannakhoummane et al, 2022); see Appendix 1.…”