Phlogacanthus curviflorus ( Wall.) Nees

Phlogacanthus curviflorus ( Wall.) Nees View in CoL in Wall., Pl. Asiat. Rar. 3: 99. 1832. Justicia curviflora Wall., Pl. Asiat. Rar. 2: 9. t.112. 1830. Lectotype (designated by Deng, 2020): INDIA, “ Crescit in montosis Sillet propinquis, indeque a De Silva in Hortum Calcuttensem missa…” October 1828, Wall. Cat. No. 2429A (K [ K001115916 digital image!]).

Phlogacanthus changlangensis P.Lungphi, A.V.Singh & A.P.Das, Pleione View in CoL 15(3): 449. 2021. syn. nov. Type: INDIA, Arunachal Pradesh, Changlang, Kharsang   GoogleMaps , Longtom-II, N 27°24’06”, E 96°00’49”, 197–206 m, 19.11.2021, P. Lungphi 0382 A (holo CAL!, CAL0000234425 About CAL !) .

Notes: Lungphi et al. (2021) described P. changlangensis View in CoL and differentiated it from P. curviflorus View in CoL based on stem vestitures, petiole length, size and vestitures of leaf lamina (both surfaces glabrous); inflorescence length, pedicel length; floral part vestitures and corolla colour. The protologue including the type of P. changlangensis View in CoL and specimens from Arunachal Pradesh were thoroughly studied. It was found that there were discrepancies in the description, photo plate and diagnosis provided by Lungphi et al., (2021) at some places, such as: in the diagnosis it was stated that the calyx of P. changlangensis View in CoL is glabrous whereas the photo plate clearly showed that the calyx is densely pubescent on the outer surface and the same was mentioned in the comparative table provided by them. Other distinguishing characters mentioned were found to be insignificant in separating it from P. curviflorus View in CoL . All characters are well within the range of variations of the same. Hence, P. changlangensis View in CoL is reduced to a synonym of P. curviflorus View in CoL .