TABLE 1. Morphological comparison between Cleisostoma mulunense and C in Cleisostoma mulunense (Orchidaceae), a new species from Guangxi, China

TABLE 1. Morphological comparison between Cleisostoma mulunense and C. menghaiense.
CharacterC. mulunenseC. menghaienseLeaves3.4–6.5 cm × 2.5–5.3 mm, convex between median vein and margin; median vein not raised abaxially8–14 cm × 4–8 mm, flat between median vein and margin; median vein raised abaxiallyDorsal sepalsuboblong, 2.4–2.8 × 1.5–1.9 mm, yellowish green with purplish brownelliptic, ca. 3.5 × 2 mm, pale yellow with purplish redLateral sepalsbroadly oblong, obviously oblique, 2.8–3 × 1.8–2.2 mm, yellowish green with purplish brownobovate, slightly oblique, ca. 3.5 × 2 mm, pale yellow with purplish redPetalsoblong, 2.3–2.7 × 1.2–1.4 mm, yellowish green with purplish brownobliquely suboblong, ca. 3.0 × 1.5 mm, pale yellow with purplish redLipmedian lobe with 2 basal backward triangular lobules, yellowish green to yellow, with purplish brown, apex acuminate; lateral lobes yellowish green to yellow, proximal margin inflexedmedian lobe without 2 basal backward triangular lobules, purplish red, apex acute; lateral lobes purplish red, proximal margin not inflexedSpurcylindroid, yellowish green to yellow; longitudinal septum tiny; callus nearly ligulate-linear, slightly widened toward upper partsomewhat horn-shaped, purplish red; longitudinal septum obvious; callus 3-lobedPolliniasphericalpyriform