The genus Chionanthus (Oleaceae) in Cambodia, Laos and Vietnam Quang, Bui Hong Nuraliev, Maxim S. Phytotaxa 2021 2021-11-19 525 3 167 195 5XTM4 Green (2000 a: 194) Green 194 2000 [164,660,158,185] Magnoliopsida Oleaceae Chionanthus Plantae Lamiales 11 178 Tracheophyta species maxwellii   TYPE:—  THAILAND. Chiang Mai: Chiang Dao District, Doi Sahm Mein, Huay Nam Ru area, partly shaded place along a small stream in the remnants of the primary, mostly evergreen, forest, granite bedrock,  1400 m, tree  15 m, dbh 42 cm, corolla white, no odour,  28 February 1990,  J.F. Maxwell90-255( holotype: L: possibly L.2674062 photo!; isotype: L). Image of holotypeavailable at https://data.biodiversitydata.nl/naturalis/specimen/L.2674062  Literature:— Green (2000b: 292), Newman et al.(2007: 248), Jin et al.(2016: 160).   Etymology:—The species is named in honor of James F. Maxwell, the collector of its type, who has also made many and excellent other collections over a number of years ( Green 2000a).  Habitat and phenology:—Primary evergreen forest, along streams and rivers, at 547–1400 ma.s.l. Flowering in February.   Distribution in the region:— Laos: Khammouane(Nam Theun).  Distribution worldwide:— Thailand: Chiang Mai.  Additional specimens examined:—   LAOS. Khammouane:riverside trails east of Keng Meow(Cat Waterfall) on Nam Theun, primary evergreen riverine forest, 17°47’28.9’’N, 105°20’21.9’’E,  547 m, tree to  10 m, dbh to 15 cm, flowers yellow,  14 February 2005,  M.F. Newman, P.I. Thomas, K.E. Armstrong, K. Sengdala, V. LamxayLAO 189(E: E00208762, not seen; L: L0476885; P: P03406841). 3408982304 1990-02-28 J. F. Maxwell Thailand Chiang Dao District 1400 Huay Nam Ru area Doi Sahm Mein 11 178 1 Chiang Mai holotype 3408982305 2005-02-14 M. F. Newman & P. I. Thomas & K. E. Armstrong & K. Sengdala & V. Lamxay Laos 547 17.79136 Nam Theun 1 105.33942 Keng Meow 11 178 1 Khammouan