Rotala simpliciuscula (Kurz) Koehne (1880: 159)

Prasanth, Arun, Sharma, Oshin A. & Sardesai, Milind M., 2021, New distributional record of Rotala juniperina (Lythraceae) for Asia with typification of three names, Phytotaxa 514 (2), pp. 167-172 : 171

Rotala simpliciuscula (Kurz) Koehne (1880: 159) .

= Ammannia simpliciuscula Kurz (1871: 54) .

Lectotype (designated by Cook 1979):— BANGLADESH. Chittagong, s. d., S. Kurz s. n. (lectotype: CAL [ CAL0000010199 !]). Epitype (designated here):— Chittagong, 1000 ft., s. d., J. D. Hooker & Thomson s. n. (epitype: M [ M0146229 !])

Typification note: — Ammannia simpliciuscula Kurz was described based on his own collection from Chittagong, Bangladesh, which was later circumscribed by Koehne (1880) as R. simpliciuscula . Cook (1979) designated Kurz’s specimen in CAL as the lectotype (without seeing the material). We examined the possible specimen CAL 0000010199 at CAL and found that of the two pockets on the top left corner, one is empty whereas the other contains fragmented leaves and remnant of a broken stem, which is demonstrably ambiguous and cannot be critically identified for the purpose of precise application of the name R. simpliciuscula . Therefore, another complete collection of R. simpliciuscula by J. D. Hooker and Thomson available at M ( M 0146229) is designated as epitype in accordance with Art. 9.9 of ICN ( Turland et al. 2018).