Epitypification with an emended description of Tropidia connata (Orchidaceae, Epidendroideae, Tropidieae)

By

Sabino Kikuchi, Izai Alberto Bruno
Tsukaya, Hirokazu

Type

Article

Date of Publication

2017

Original Publication

PhytoKeys

Volume

80

Pages

77-85

Subjects

Borneo , emendation , epitypification , Kalimantanorchis , mycoheterotroph , Orchidaceae , Tropidia , Tropidieae

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.80.12304

 

Abstract

We found several specimens of Tropidia connata, a mycoheterotrophic orchid from Borneo, with features which have never been described in any of the existing literature, namely subterranean tubers. We mainly focus on the importance of the subterranean structures in comparison with the mycoheterotrophic genus Kalimantanorchis from the tribe Tropidieae. This finding of the tuberous structure gives a new insight into the classification of mycoheterotrohic species of Tropidieae and might affect the generic placement of Kalimantanorchis. We made a detailed study on the newly discovered specimens as well as the type, and found more diagnostic characters of T. connata than the previous description. Considering that the type specimen lacks the whole tuberous character, we consequently designate an epitype with a drawing and emend the description.