Gastrodia albidoides (Orchidaceae: Epidendroideae), a new species from Yunnan, China

Abstract

A new species, Gastrodia albidoides (Orchidaceae: Epidendroideae, Gastrodieae) from Yunnan, China, is described and illustrated. It is closely related to G. theana and G. albida but can be distinguished by an almost smooth perianth tube, lateral sepals fused to ½ their length, whitish and unthickened petals, a well-developed rostellum and distinct column foot.

<p align="left">Gastrodia kuroshimensis (Orchidaceae), a new mycoheterotrophic and complete cleistogamous plant from Japan

“…90 acceptable species (Hsu et al 2016). It is distributed throughout the temperate and tropical regions of Asia, Oceania, Madagascar and Africa (Chung & Hsu 2006, Cribb et al 2010, Tan et al 2012. The genus is characterized by fleshy tubers, the absence of leaves, as well as the union of its sepals and petals, and the production of two mealy pollinia that lack caudicles.…”

“…Despite these limitations, several studies have recently re-examined the diversity of species belonging to section Codonanthus in various countries in Asia (Chung & Hsu 2006, Meng et al 2007, Hsu & Kuo 2010, Yeh et al 2011, Tan et al 2012, Ong & Byrne 2012, Ong 2015, Suetsugu 2013a, 2014, Hu et al 2014, Huang et al 2015, Pelser et al 2016, Tsukaya & Hidayat 2016. The flora of Japan is particularly rich in mycoheterotrophic plants, harboring ca.…”

Gastrodia madagascariensis (Gastrodieae, Orchidaceae): from an historical designation to a description of a new species from Madagascar

“…Since the recent treatment of Gastrodia in Genera Orchidacearum (Kores et al 2006), the number of species has increased considerably from approximately 20 to 50 species (Hsu & Kuo 2010, Yeh et al 2011, Tan et al 2012, Suetsugu 2013, Hu et al 2014, making it the most diverse genus in the orchid tribe Gastrodieae. In view of that, investigations into nuclear and mitochondrial markers that would suitably resolve the phylogenetic relationships between the Gastrodia species found in the Asia-Pacific and the Afro-Madagascan region are now needed.…”

Two new species of Gastrodia (Gastrodieae, Orchidaceae) endemic to New Zealand

“…Furthermore, transition between the self-fertilisation and out-crossing state is common within Gastrodia and there are several species pairs in which the length of the column is the most diagnostic character (e.g. Tan et al 2012, Hu et al 2014, Suetsugu 2014. One of the most recent additions to Gastrodia is a species from China which has long-and short-column flowers within the same inflorescence (Huang et al 2015).…”