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| Thottea beungongtanoeh Mustaqim, in Mustaqim & Arico, 2022. |
Abstract
A species new to science, Thottea beungongtanoeh Mustaqim (Aristolochiaceae), is described based on a specimen collected from a lowland mixed dipterocarp forest in the eastern part of Aceh Province, the northernmost province in Sumatra. This species differs from all previously described species in having 33-lobed style, the highest count for the genus. Morphological description, distribution, phenology, comparison with the similar species, and the photographs of the living plants are provided.
Keyword: Acehnese Language, cauliflory Indonesia, the lowland mixed dipterocarp forest, Thottea grandiflora, West Malesia
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| Thottea beungongtanoeh Mustaqim. A. Living plant. B. Leaf, adaxial side. C. Leaf, abaxial side. D. Inflorescences. E. Flower, lateral view. F. Flower, top view. G. Perianth, outer surface. H. Perianth, inner surface. I. Stamens. J. Style and stigma. K. Immature capsule. Scale bars: B–C, F = 1 cm, D–E = 1 cm, G = 5 mm, H–J = 1 mm, K = 5 mm. Photographed by Wendy A. Mustaqim |
Thottea beungongtanoeh Mustaqim, sp. nov.
Diagnosis: Thottea beungongtanoeh can be recognized from other species in the genus by the 33- lobed style. It is similar to T. grandiflora Rottb., besides having more numerous style lobes (33 vs 20), this species differs in having inflorescence close to ground level (vs not from the ground level) and tubular perianth tube (vs campanulate).
Distribution and Ecology: Indonesia, endemic to northern Sumatra (Aceh Province), only known from the type locality (Fig. 2). Found in the lowland mixed dipterocarp forests on undulating terrain at the elevation around 60–80 m asl, on clay mixed with humus soils.
Etymology: The specific epithet is derived from the Acehnese Language, beungong tanoeh, which means ‘flower of the ground’, indicating the position of the flowers.
Wendy A. Mustaqim and Zulfan Arico. 2022. Thottea beungongtanoeh (Aristolochiaceae), A New Species from Aceh, northern Sumatra. Taiwania. 67(4); 587-590.
