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| Diplycosia jiewhoei Mustaqim
in Mustaqim & Ardi, 2019.
DOI: 10.7751/telopea13168
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Abstract
Diplycosia jiewhoei Mustaqim and Vaccinium paludicolum var. hirsutulum Mustaqim are described as new taxa. Diplycosia retusa has been rediscovered after a lapse of 116 years and is here illustrated with photographs, and the first description of the fruits of this species is presented.
Keywords: Diplycosia, Ericaceae, new species, taxonomy, Vaccinium, Wallacea
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| Fig. 1. Diplycosia jiewhoei Mustaqim: A. habit. B. twig. C. close up of leaves. D. inflorescence. E–F. Flower.
Scale: A–B = 5 mm; C = 0.5 mm; D–F = 2 mm.
All from Ardi 258. Photos: Wisnu H. Ardi.
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Diplycosia jiewhoei Mustaqim, sp. nov.
Diagnosis: Similar to Diplycosia elliptica Ridl. (northern Sumatra, Peninsular Malaya and Borneo) but differing in having leaves with a protruding apical gland (vs minute), longer pedicels (c. 4 mm vs 1(–2) mm long), an urceolate-subglobose corolla (vs short-cylindric or subcampanulate), oblong anthers (vs sagittate) and shorter tubules (0.3 mm vs 1 mm long).
Type: INDONESIA: Central Sulawesi: Poso Regency: Tentena-Bada road divide, 1 Aug 2018, WH Ardi 258 (holotype: BO!; isotypes: CEB!, SING!).
Etymology: Named after Tan Jiew Hoe, the Singaporean philantropist and plant enthusiast who supports many botanical explorations including the one on which this species was collected.
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| Fig. 4. Diplycosia retusa. A. Habit. B. Flower. C. Fruit, lateral view. D. Fruit seen from above.
Scale: A = 5 cm; B = 5 mm; C–D = 5 mm.
All from Ardi 272. Photos: Wisnu H. Ardi.
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The rediscovery of Diplycosia retusa
Diplycosia retusa Sleumer, Bot. Jahrb. 71: 156 (1940).
Distribution: Endemic to Central Sulawesi.
Habitat and ecology: Terrestrial in upper montane vegetation on quartzite soil, 1300 to 1700 m.
Wendy A. Mustaqim and Wisnu H. Ardi. 2019. Ericaceae of Sulawesi: A New Species of Diplycosia, A New Variety of Vaccinium paludicolum and One Rediscovery. Telopea: Journal of Plant Systematics. 22; 193-204. DOI: 10.7751/telopea13168
Abstrak: (Bahasa Indonesia) Diplycosia jiewhoei Mustaqim and Vaccinium paludicolum var. hirsutulum Mustaqim dipertelakan sebagai takson-takson baru. Diplycosia retusa telah ditemukan kembali setelah jeda 116 tahun dan foto beserta pertelaan pertama lengkap dengan buah untuk jenis ini disajikan.
Kata kunci: Diplycosia, Ericaceae, jenis baru, taksonomi, Vaccinium, Wallacea
