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| Bulbophyllum trinervosum Victoriano & Y.R.Yudistira, in Victoriano et Yudistira, 2020. |
Abstract
A new species of Bulbophyllum (Orchidaceae: Bulbophyllinae) in section Macrocaulia from West Java, Indonesia is described as Bulbophyllum trinervosum Victoriano & Y.R.Yudistira spec. nov. This miniature orchid is found around Cakrabuana mountain range at an elevation of 1,300–1,550 m. The key characteristic of this species is unique among section Macrocaulia in having three nerves on its median sepal instead of five like the other species in this section.
Keywords: Bulbophyllum, Indonesia, Java, new species, orchids.
Bulbophyllum trinervosum Victoriano & Y.R.Yudistira, spec. nov.
Bulbophyllum trinervosum is similar to B. ovalifolium but differs in having a smaller flower, with three longitudinal veins on the median sepal (B. ovalifolium: five), an obovate lip with emarginate apex (B. ovalifolium: tongue-shaped, sub-acute apex) and oblong, oblique, folded petals each with one indistinct vein, the colour is identical to the lip (B. ovalifolium: oval–oblong and unfolded petals, with one distinctive vein, the colour is identical to the lateral sepals).
Etymology. From Latin trēs, the cardinal numeral of three for combination (tri-), and nervosus means sinewy or nerved. Thus, the epithet means three-nerved Bulbophyllum, it refers to the three longitudinal veins on the median sepal of this species.
Malcolm Victoriano and Yuda Rehata Yudistira. 2020. Bulbophyllum trinervosum, A New Species of section Macrocaulia (Orchidaceae: Bulbophyllinae) from West Java, Indonesia. Reinwardtia. 19(1): 67‒73. DOI: 10.14203/reinwardtia.v19i1.3850
