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| Bryobium scutatum Mustaqim, J.Champion & Schuit., in Schuiteman, Mustaqim et Champion, 2026. |
Abstract
A new species of Bryobium Lindl. is described based on specimens collected in northern Gayo Plateau, Sumatra. It is provisionally assessed as Critically Endangered (CR) due to its narrow range and imminent threats to its habitat. A detailed description, photographs, an illustration, and a key to Sumatran Bryobium species are provided.
Keywords: epiphyte, key, Red List, taxonomy, Indonesia
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| Morphology of Bryobium scutatum. A. Sterile stem. B. Plant in flower. C. Inflorescence. D. Flowers. E. Flower, front view. F. Flower, lateral view. G. Dorsal sepals, abaxial and adaxial views. H. Lateral sepals, abaxial and adaxial views. I. Petals, adaxial and abaxial views. J. Column and lip, lateral view. K. Lip, adaxial view. L. Lip, adaxial view. M. Lip, lateral view. N. Lip, front view. O. Column and column-foot, ventral view. P. Anther cap, ventral views without and with the pollinarium. Q. Pollinia. Photographs after Mustaqim et al. 4045 by Wendy A. Mustaqim (A-L and O-P) and after cult. J. Champion s.n. by Jeffrey Champion (M-N). |
Bryobium scutatum Mustaqim, J.Champion & Schuit., sp. nov.
Diagnosis: The new species is superficially similarto B. pullum from Sulawesi but differs in havinglarger floral parts (e.g., sepals 9.5–10.0 vs. 6 mm),a lip mid-lobe (epichile) with a central callus andtwo calli at the base (vs. mid-lobe without calli), lipnot constricted (vs. lip abruptly constricted near themiddle), basal calli of the lip shield-like ( vs. basalcalli ridge-like). The base of the lip is dark reddish ...
Etymology: From the Latin scutatus, ‘carrying ashield’, referring to the shield-like calli on the lip.
André Schuiteman, Wendy A. Mustaqim and Jeffrey Champion. 2026. Flora of Gayo Plateau IV: A New Species of Bryobium (Orchidaceae) from Gayo Plateau, Sumatra. LANKESTERIANA. 26(2); 93–100. DOI: doi.org/10.15517/hae3ah55
