Two new Meiogyne species from Malesia and new combinations in Meiogyne and Monoon (Annonaceae) in the Asia-Pacific region Author Liu, Ming-Fai 0000-0002-4732-2512 Flora Conservation Department, Kadoorie Farm & Botanical Garden, Lam Tsuen, Lam Kam Road, New Territories, Hong Kong SAR, China Author Munzinger, Jérôme 0000-0001-5300-2702 AMAP, Université Montpellier, IRD, CIRAD, CNRS, INRAE, Montpellier, France Author Chen, Junhao 0000-0001-8822-169X Botanical Research, Singapore Botanic Gardens, 1 Cluny Road, Singapore 259569, Singapore & Department of Biological Sciences, National University of Singapore, 16 Science Drive 4, Singapore 117558, Singapore text PhytoKeys 2026 2026-03-20 272 21 36 journal article 314564 10.3897/phytokeys.272.175385 d125d459-da97-4442-888f-6bee307a9b99

Table 1. Morphological comparison of M. cylindrocarpa, M. saundersii, M. stenophylla, and M. wilsonii.

	Meiogyne cylindrocarpa	Meiogyne saundersii	Meiogyne stenophylla	Meiogyne wilsonii
Leaf shape	Broadly ovate, ovate or elliptic	Elliptic	Lanceolate	Lanceolate
Leave width	(1.5 –) 2–4.3 cm	(1.5 –) 2–3.2 (– 3.6) cm	1–1.9 cm	1.9–3.6 cm
Leaf apex	Acute, rarely shortly acuminate	Abruptly caudate	Attenuate	Acute
Leaf base	Rounded, rarely cordate, symmetrical to slightly oblique	Cuneate, symmetrical	Cuneate, slightly oblique	Cordate, oblique
Outer petal shape	Broadly ovate	Triangular	Lanceolate	Triangular to lanceolate
Inner petal shape	Broadly ovate	Elliptic to ovate	Lanceolate	Triangular to lanceolate
Inner petal corrugation	Weakly longitudinally grooved	Tentacular	Weakly warty	Weakly warty
Monocarp shape	Cylindrical	Cylindrical	Cylindrical	Subglobose
Monocarp indument	Glabrescent	Sparsely appressed hairy	Sparsely to moderately appressed hairy	Glabrous
Monocarp stipe thickness	1.5–2 mm	1–2 mm	2–3 mm	4–5 mm
Pericarp thickness	Up to 1 mm	<0.5 mm	c. 1 mm	c. 2 mm
Geographic distribution	East Java, Lesser Sunda Islands, Maluku Islands, New Guinea, Australia, and Mariana Islands	Peninsular Malaysia, Sumatra, and Borneo	New Guinea	Vanuatu
Habitat	Seasonally dry forests and woodlands at 10–200 m	Rainforests at 20–855 m	Montane forests at 1200 m	Hill forests at 500 m