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Ulnaria constricta-biseriata sp. nov., ×1000, LM A–H eight valves exhibiting a size diminution series, note the constricted middle margins A micrograph of holotype specimen. Scale bar: 20 μm. |
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| Part of: Liu B (2023) The diatom genus Ulnaria (Bacillariophyta) in China. PhytoKeys 228: 1-118. https://doi.org/10.3897/phytokeys.228.101080 |