Monolophus species

Ding, Hong-Bo, Yang, Bin, Zeng, Xiao-Dong, Thwe, Phyo Phyo, Zuo, Yun-Juan & Tan, Yun-Hong, 2025, Monolophus unifolius (Zingiberaceae), a new species from Sagaing Region, northern Myanmar, Phytotaxa 698 (4), pp. 277-284 : 281

Key to the Monolophus species from Myanmar

1. Flowers white or white tinged with yellow ........................................................................................................................................ 2

1. Flowers yellow ................................................................................................................................................................................... 3

2. More than two leaf blades per leafy shoot................................................................................................................... M. odontochila

2. Only one leaf blade per leafy shoot................................................................................................................................. M. unifolius

3. Laminae ovate to ovate-elliptic, ligule 1–2 mm long.................................................................................................... M. kayinensis

3. Laminae lanceolate, ligule 9–24 mm long ...................................................................................................................... M. monensis