Kaempferia takensis Boonma & Seansouk

Kaempferia takensis Boonma & Seansouk View in CoL — Fig. 5 View Fig

Kaempferia takensis Boonma & Seansouk in Boonma et al. (2020) 371. — Type: Thawatphong Boonma 012 (holo KKU!), Thailand, Tak Province, Mae Sot District , 18 Mar. 2019.

Kaempferia kamthornii Picheans. & Meechonkit in Meechonkit & Picheansoonthon (2021) 2221; syn. nov. — Type: Chayan Picheansoonthon & Penjun Meechonkit 060416­1 (holo BK!), Thailand, Tak Province, Mae Sot District , roadside along highway 12 between km 63–64, 6 Apr. 2015.

Notes — During the taxonomic revision of Kaempferia for the Flora of Thailand Project, K. takensis and K. kamthornii were described and recognised as new species ( Boonma et al. 2020, Meechonkit & Picheansoonthon 2021, respectively). However, in the protologue of K. kamthornii no comparison was made with K. takensis . The plant specimens of both species were not only collected from the same area, Mae Sot District of Tak Province in Thailand, but they also displayed the same morphological characters ( Fig. 5 View Fig ). Based on morphological evidence and a similar distribution, we synonymise the younger name K. kamthornii with K. takensis .

Kaempferia takensis View in CoL collected from Mae Sot District of Tak Province was used as accession NNSB373 (called ‘ Kaempferia sp. 3 Phaya Nokkhum’) in the analysis of nuclear ITS2 sequences of Kaempferia subg. Protanthium ( Nopporncharoenkul et al. 2016) .

We also observed that the distribution of K. takensis View in CoL is larger than originally described, it is found in various provinces of Thailand: Tak, Mae Hong Son, Chiang Mai, Chiang Rai, Phayao, Lamphun, Lampang, Phrae, Kamphaeng Phet, Nakhon Sawan , and Uthai Thani.