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(A, B) Labellum of Stenocoryne secunda (syn. Bifrenaria aureofulva) (K37726) showing sparse (A), unicellular trichomes (B). Scale bars: A = 1 mm; B = 250 μm. (C, D) Papillose labellum of Xylobium foveatum (K14423) (C) showing obpyriform papillae and 2-celled trichomes with clavate terminal cells (D). Scale bars: C = 1 mm; D = 100 μm.
