Chionanthus maxwellii Green (2000a: 194)

Quang, Bui Hong & Nuraliev, Maxim S., 2021, The genus Chionanthus (Oleaceae) in Cambodia, Laos and Vietnam, Phytotaxa 525 (3), pp. 167-195 : 178

6. Chionanthus maxwellii Green (2000a: 194)

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. Maxwell 90-255 (holotype: L: possibly L.2674062 photo!; isotype: L) .

Image of holotype available 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 m a.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. Lamxay LAO 189 (E: E00208762, not seen; L: L0476885; P: P03406841) .