Table 2 in Two new species of Lasianthus Jack (Rubiaceae) from southern Vietnam

Table 2. Comparison of Lasianthus sonlangensis V.S.Dang, Vuong & Quan sp. nov. and L. caeruleus Pitard. * = from Pitard 1924; ** = from Dang 411, VNM.
CharactersLasianthus sonlangensis sp. nov.Lasianthus caeruleusLeaf blades5–7 × 1–1.5 cm4.5–7 × 0.8–1.5 cm *Secondary veins5–7 pairs4–5 pairs *Petioles2–3 mm long4–5 mm long *Stipulespersistent, 0.8–1 mm longoften deciduous *Bracts0.6–1 mm longabsent*Calyx tube1.5–2 mm longca 1 mm long *Calyx lobes0.7–1 mm long, 4-lobedca 0.5 mm long, 5-lobed *Corolla tube6–7 mm long4–5 mm long **Corolla lobes1.5–2 mm long, 4-lobed1.5–2 mm long, 5-lobed **