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| Galanthus bursanus Zubov, Konca & A.P.Davis
in Zubov, Konca & Davis, 2019.
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Summary
Galanthus bursanus (Amaryllidaceae), a new snowdrop species endemic to the Marmara Sea region (Bursa Province, NW Turkey), is described and illustrated. Morphological differences between the new species and other possibly related Galanthus taxa (G. plicatus subsp. byzantinus, G. ×valentinei nothosubsp. subplicatus, and G. reginae-olgae subsp. reginae-olgae) are discussed. Photographs (habitat and morphology), a distribution map and a preliminary conservation assessment are provided.
Key Words: Calciphile, conservation, geophyte, hysteranthous, Turkish flora
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| Fig. 1. Galanthus bursanus. A habit; B leaf (adaxial view (left) and adaxial view (right)), as cut from basal sheath; C flower with segments removed; D flower with segments removed in L.S.; E outer perianth segment (abaxial view (left) and adaxial view (right)); F inner perianth segment (abaxial view (left) and adaxial view (right)); G inner perianth segment (abaxial view), showing X-shaped marked variant; H anthers, showing side, abaxial and adaxial views (from lower to upper); J fruit (capsule) (including ovary); K seed. Scale bar: A = 2 cm; B, C = 7 mm; D – G = 8 mm; H = 4 mm; J, K = 1 cm.
All from Zubov & Konca s.n. Drawn by Lucy T. Smith.
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| Fig. 2. Images of Galanthus bursanus in situ. A habitat, at red soil pockets developed in limestone outcrops under Quercus cerris forest; B, C habitat at locus classicus; D flowers; E leaves at fruiting stage. All photos taken at the locus classicus (A, B 26 Nov. 2016; C, D 25 Nov. 2018; E 11 Feb. 2017).
Photos: A, C – E D. Zubov and B Y. Konca.
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Galanthus bursanus Zubov, Konca & A.P.Davis sp. nov.
RECOGNITION: Possibly related to Galanthus plicatus subsp. byzantinus and G. ×valentinei nothosubsp. subplicatus but differs by having hysteranthous leaves (vs synanthous in G. plicatus subsp. byzantinus and G. ×valentinei nothosubsp. subplicatus); and Oct. – Jan. flowering period (vs Dec. – April). Related possibly to G. reginae-olgae subsp. reginae-olgae but differs by the inner perianth segment carrying an apical and a basal mark, which infrequently merge into a single, bold, X-shaped mark (vs inner perianth segment only has one apical mark in G. reginae-olgae subsp. reginae-olgae). ....
DISTRIBUTION: Asia Minor: Turkey, Marmara Transitional region (north-western spurs of Korucak Daği ridge); a narrow local endemic of the Marmara Sea region.
ETYMOLOGY: Named after the Marmara Sea region Turkish Province – Bursa.
Dimitri A. Zubov, Yıldiz Konca and Aaron P. Davis. 2019. Galanthus bursanus (Amaryllidaceae): A New Species of Snowdrop from the Marmara Sea region, NW Turkey. Kew Bulletin. DOI: 10.1007/s12225-019-9806-5