Trichoglottis biglandulosa

Description

Trichoglottis biglandulosa is a very small epiphytic herb with a fibrous root system. Its leaves are arranged alternately and are thick, and linear-lanceolate. The inflorescence is unbranching, and the flowers are pedunculate and almost white. The sepals and petals are unfused, spreading, and minutely clawed, with the interior slightly more narrow. The labellum is small, with a slight compressed pouch towards the base. Behind the opening of pouch is a two-lobed callus. The lip is completely fused with the column. The column is short, broad, blunt, and spreading-erect, with the anther distal. The pollinia are globose, connected by a thin elastic stalk, to which they are fixed by the center. The plant blooms from April to July.

Distribution and habitat

Trichoglottis biglandulosa is endemic to the island of Java. It grows at rather high elevations in montane forests. At the time of its publication, it was reported from Mount Gede and Mount Salak.

Taxonomy and naming

Trichoglottis biglandulosa was first described by Carl Ludwig Blume in 1825 as Ceratochilus biglandulosus.

References

• Pridgeon, A.M., Cribb, P.J., Chase, M.A. & Rasmussen, F. eds. (1999). Genera Orchidacearum 1. Oxford Univ. Press.
• Pridgeon, A.M., Cribb, P.J., Chase, M.A. & Rasmussen, F. eds. (2001). Genera Orchidacearum 2. Oxford Univ. Press.
• Pridgeon, A.M., Cribb, P.J., Chase, M.A. & Rasmussen, F. eds. (2003). Genera Orchidacearum 3. Oxford Univ. Press
• Berg Pana, H. 2005. Handbuch der Orchideen-Namen. Dictionary of Orchid Names. Dizionario dei nomi delle orchidee. Ulmer, Stuttgart

References

1. "''Trichoglottis glandulosa''". [[Royal Botanic Gardens, Kew]].
2. Ludwig von Blume, Karl. Bijdragen tot de flora van Nederlandsch Indië: 358 (1825). ''Biodiversity Heritage Library''. (in Latin)
3. The taxon ''Gastrochilus biglandulosus'' was subsequently synonymized with ''T. biglandulosa'' in 1891 by Kuntze. In 2014, Kocyan and Schuiteman moved the former [[monotypic taxon|monotypic genus]] ''Ceratochilus'' into ''Trichoglottis''. Though ''Ceratochilus'' was never considered to be closely related to ''Trichoglottis,'' molecular analysis strongly supported its position as sister to ''T. pusilla''. Rather than excluding ''T. pusilla'', the authors merged ''Ceratochilus'' with ''Trichoglottis''.Kocyan, Alexander & Schuiteman, André. "New combinations in Aeridinae" (Orchidaceae). Phytotaxa 161: 77 (2014).