Taeniophyllum

Kocyan, Alexander & Schuiteman, André, 2013, New combinations in Aeridinae (Orchidaceae), Phytotaxa 161 (1), pp. 61-85 : 71

TAENIOPHYLLUM

Taeniophyllum Blume. Type species: Taeniophyllum obtusum Blume (1825: 355) .

Alwisia Thwaites ex Lindley (1858, publ. 1859: 42). Type species: Alwisia minuta Thwaites ex Lindl.

Cryptorchis Makino (1893: 118) , nom. invalid. Type species: Cryptorchis aphylla Makino.

Geissanthera Schlechter (1905: 231) Type species: Geissanthera papuana Schltr.

Microtatorchis Schlechter (1905: 224) Type species: Microtatorchis perpusilla Schltr.

Ankylocheilos Summerhayes (1943: 168) . Type species: Ankylocheilos coxii Summerh.

Taeniophyllum species are small, leafless orchids with their pollinia divided into four equal bodies. In contrast, although also small and inconspicuous and with similar flowers, Microtatorchis species usually carry leaves and have two instead of four pollinia. Molecular analysis reveals that Microtatorchis is nested within Taeniophyllum (Kocyan in prep.). In addition, we can demonstrate that the leaf-bearing state of Microtatorchis has evolved twice indepently from the leafless condition in Taeniophyllum . Both genera are largely undercollected, and apart from the type collection many species are otherwise unknown; many were collected and described by Schlechter (1911–1914). Although we were able to analyse only a small fraction of the described species in this group, our results strongly support Microtatorchis being included in Taeniophyllum .

Below we first list the new combinations and then enumerate the Microtatorchis species that had already been included in Taeniophyllum . Hence, the last species do not require new combinations. By listing here all species treated as Microtatorchis we aim to facilitate future work in Taeniophyllum ( Fig. 1J ).

Figures

FIGURE 1. Selected flower images of the newly combined taxa to illustrate floral diversity among Aeridinae. A, Brachypeza unguiculata; B, Dimorphorchis breviscapa; C, Grosourdya myosurus; D, Phalaenopsis difformis; E, Renanthera caloptera; F, Thrixspermum breviscapum; G, Robiquetia punctata; H, Robiquetia minimiflora; I, Renanthera porphyrodesme; J, Taeniophyllum javanicum; K, Trachoma phillipsii; L, Trichoglottis biglandulosa; M, Trichoglottis ventricularis. Photographs by A. Kocyan (A, B, D, E, G–M), P. O’Byrne (C) and P.T. Ong (F).