Summary
Tupistra siphonantha N. Tanaka, Vislobokov & D. P. Hannon, a new species from central Laos is described and illustrated. It is distinguishable from all other members of Tupistra mainly by the synchronously blooming flowers, clavate-tubular, cream-white or fulvous perianth with strongly incurved segments, latrorse anthers with thecae separated by a round (papillary) projection from the perianth, and very small, simple pistil bearing a single ovule in the locule. It is also unique in having ellipsoid, smooth, orange fruits that are similar to those of Rohdea. The taxonomic position and features of the flowers and fruits of this species are briefly discussed. A key to the species of Tupistra reported from Laos is also provided.
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Acknowledgements
We cordially thank Sean C. Lahmeyer at HNT for assisting us with the herbarium material on which this study is largely based. Taylor La Val, also of HNT, is thanked for his successful efforts in hand-pollinating Tupistra siphonantha, enabling our study of its fruits and seeds. Morphological study by N. Vislobokov was carried out on the governmental order to the Lomonosov Moscow State University (project No. АААА-А16-116021660105-3). We sincerely thank two anonymous reviewers for valuable comments and corrections on our manuscript.
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Tanaka, N., Hannon, D.P. & Vislobokov, N.A. Tupistra siphonantha (Asparagaceae), a new species from Lao P.D.R. with a simple pistil. Kew Bull 73, 32 (2018). https://doi.org/10.1007/s12225-018-9754-5
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DOI: https://doi.org/10.1007/s12225-018-9754-5