TABLE 1 in Primulina hoangmongii (Gesneriaceae), a new species from northern Vietnam

TABLE 1. Comparison of morphological characters of Primulina hoangmongii, P. albicalyx, and P. swinglei.
P. hoangmongiiP. albicalyxP. swingleiLeaftexturesucculentsucculentherbaceousbaserounded to subcordatecuneate to broadly cuneatecuneate to rounded or truncateadaxial indumentumappressed strigose or puberulousappressed puberulouspuberulousabaxial indumentumstrigose and puberulous; densely hispid-hirsute along veinsglabrescent; puberulous along veinspuberulous throughoutCymesnumber of flowersusually 26–143–10Bractsshapelinear to narrowly-lanceolatenarrowly ovate to ovatelinear to linear-lanceolatesize (mm)8–12 × 2–318–25 × 9–142–6 × 0.8–1Calyx colorgreenwhitegreenCorollacolourrich yellowpale yellowpale blue to purplelength (cm)5–63.5–4.51.5–4.2base of upper lipflat, rich yellowswelling between lobes, brownish yellowflat, purplestaminodes number322lateral staminodes length (mm)5–72.5–71.2–2stigmaligulate, entiredeltoid, 2-lobedligulate-oblong, entireDistributionN Vietnam, Yen BaiSE China, GuangxiSE China to N Vietnam