Saturday, May 21, 2022

[Botany • 2022] Dendrobium fuscifaucium (Orchidaceae: Epidendroideae: Dendrobieae) • A New Species from Laos


Dendrobium fuscifaucium Souvann. & Kumar, 

in Souvannakhoummane, Kumar & Phonepaseuth, 2022. 
 facebook.com: ແກ້ວອຸດອນ ສຸວັນນະກຸມມານ

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.

Keywords: orchid trade, new taxa, section Dendrobium, epiphytic, taxonomy, Monocots

 Dendrobium fuscifaucium Souvann. & Kumar, 
 A–C. Habit. D. Flower, side view. E. Flower, front view. F. Sepals, petals and column. G. Labellum. H. Anther cap, dorsal view. I. Anther cap, ventral view. J. Anther cap, posterior view.
All from (KS1400) by K. Souvannakhoummane.

Dendrobium fuscifaucium Souvann. & Kumar, 
A. Habit. B. Flower, front view. C. Flower, side view. D. Flower, ventral view. E. Young fruit. F. Sepals, petals and column. G. Labellum. H. Anther cap, dorsal view. I. Anther cap, ventral view. J. Anther cap, posterior view. K. Pollinium.
All drawn from live plant (KS1400) by K. Souvannakhoummane.


Dendrobium fuscifaucium Souvann. & Kumar, sp. nov.

Etymology:— Refering to dark brown colour on the disc of the labellum.

 Vernacular name:— ເຜິ້ງຊັອກໂກແລັດ [Ueang Sok Ka Lat, 
chocolate-lipped dendrobium]


Keooudone Souvannakhoummane, Pankaj Kumar and Phongphayboun Phonepaseuth. 2022. Dendrobium fuscifaucium (Orchidaceae: Epidendroideae: Dendrobieae), A New Laotian Species only known in cultivation. Phytotaxa. 541(3); 285-290. DOI: 
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