Table 3.

**Table 3.** Morphological comparisons between *Polyalthia evecta* -3 [= *P. esanensis* Wiya, Damth. & Chaowasku sp. nov.], *P. evecta* -4 [= *P. acuminatissima* Wiya, Damth. & Chaowasku sp. nov.], *P. evecta* -2 [= true *P. evecta* (Pierre) Finet & Gagnep.] and *P. chantaranothaii* Bunchalee & Chalermglin. Data for the true *P. evecta* are from Pierre (1881) and personal observations; data for *P. chantaranothaii* are from Bunchalee *et al.* (2021b) and personal observations.
Feature	P. evecta -3 [= P. esanensis sp. nov.]	P. evecta -4 [= P. acuminatissima sp. nov.]	P. evecta -2 [= true P. evecta]	P. chantaranothaii
Young twigs	densely hairy	sparsely hairy	densely hairy	densely hairy
Leaf texture	chartaceous	chartaceous-subcoriaceous	no data available	chartaceous
Length of leaf acumen (mm)	6.0–9.0	(12.0–)16.0–26.0	0 (acumen absent)	10.0–15.0
Pedicel length (mm; in flower)	5.0–11.0	4.5–11.0	(12.5–)15.0–30.0	4.0–6.0
Outer petal length (mm)	5.5–5.8	4.5–5.5	4.5–5.5	2.0–2.5
Number of carpels per flower	7–13	4–11	(30–)40–60	10–15