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| Bulbophyllum wiratnoi Saputra, Schuit., Mustaqim & J.Champ., in Saputra, Mustaqim, Champion et Schuiteman, 2023. |
Abstract
A new species of Bulbophyllum sect. Epicrianthes, Bulbophyllum wiratnoi Saputra, Schuit., Mustaqim & J.Champ., is described based on specimens from Indonesian New Guinea. A detailed morphological description and diagnosis, information on distribution and ecology, a preliminary conservation assessment, and a discussion are provided. A key to species of Bulbophyllum sect. Epicrianthes in Indonesian New Guinea is also presented.
Keywords: Bulbophyllum, Epicrianthes, orchids, Papua Barat, Sorong Nature Recreation Park, Monocots
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| Line drawing Bulbophyllum wiratnoi. A. Plant habit. B-D. Lip (adaxial, abaxial, side view). E. Column side view. F. Petal with appendages. G. Dorsal sepal. H. Lateral sepal. I. Polinia. J. Anther cap. All from holotype. Illustrated by Reza Saputra. |
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| Morphology of Bulbophyllum johannuli and Bulbophyllum wiratnoi. A. Bulbophyllum johannuli. B–I. Bulbophyllum wiratnoi: B. Plant with inflorescence. C–D. Flower (front view, oblique view). E. Polinator. F–H. Lip (side view, oblique view, front view). I. Petal front view. Scale: B = 5 mm, C–L = 1 mm. Photographs A by Peter Jongejan, C, E, F, G, H, I by Reza Saputra and B, D by Jeffrey Champion. |
Bulbophyllum wiratnoi Saputra, Schuit., Mustaqim & J.Champ., sp. nov.
Diagnosis:— This species is similar to Bulbophyllum johannuli Vermeulen (1982: 22–23) in the apically filiform petal appendages but differs in having longer leaves 5.5–5.6 cm [index 2–2.3] (vs. 4.2 × 2.8 cm [index 1.5] in B. johannuli), larger sepals (ca. 12 × 4.5–5 mm vs 8 × 3 mm), petal appendages filiform from a dilated base, ca. 9.7-12 mm long (vs. filiform, 5 mm long, not dilated at the base), with pandurate labellum (vs. spathulate), having longer (ca. 0.23 mm long) and denser papillae on the abaxial side of the lip (vs. papillae ca. 0.14 mm long).
Distribution:— INDONESIA: Papua Barat Daya Province, Bird’s Head Peninsula. Endemic.
Habitat and ecology:—Epiphyte on branches of a large tree in lowland rainforest, ca. 114 m asl.
Etymology:—The specific epithet honours Wiratno, prominent Indonesian conservation figure and former Director-General of Conservation of Natural Resources and Ecosystems, Ministry of Environment and Forestry, who was responsible for many breakthroughs in Indonesian conservation development. His ideas about new ways to manage conservation areas in Indonesia are already positively impacting the lives of local people, while preserving ecosystems and their biodiversity.
Reza Saputra, Wendy A. Mustaqim, Jeffrey Champion and André Schuiteman. 2023. Bulbophyllum wiratnoi (Orchidaceae), A New Species of section Epicrianthes from Indonesian New Guinea. Phytotaxa. 589(3); 283-288. DOI: 10.11646/phytotaxa.589.3.7
