Nymphoides aurantiaca (Dalzell) Kuntze

Tippery, N. P., Pawinski, K. C. & Jeninga, A. J., 2021, Taxonomic evaluation of Nymphoides (Menyanthaceae) in eastern Asia, Blumea 66 (3), pp. 249-262 : 259

1. Nymphoides aurantiaca (Dalzell) Kuntze

Nymphoides aurantiaca (Dalzell) Kuntze (1891) 429. — Limnanthemum aurantiacum Dalzell (1850) 136. — Type: Dalzell s.n. (holo K000832797), India, Mumbai.

Villarsia hydrocharoides F.Muell.(1868) 139. — Limnanthemum hydrocharoides (F.Muell.) F.Muell ex Benth. in Benth. & F.Muell. (1868) 380. — Nymphoides hydrocharoides (F.Muell.) Kuntze (1891) 429. — Lectotype (designated by Aston 2009): Dallachy s.n. (lecto MEL no. 1505007), Australia, Queensland, Rockingham Bay.

Villarsia aurantiaca Ridl.ex C.B.Clarke in King & Gamble (1906) 90. — Lectotype (designated by Aston 2009): Ridley s.n. (lecto CAL no. 303131), Malaysia, Kuala Pahang.

Limnanthemum coronatum Dunn in Dunn & Tutcher (1912) 175. — Nymphoides coronata (Dunn) Chun ex Y.D.Zhou & G.W.Hu in Y.D. Zhou et al. (2014) 171. — Lectotype (designated here): Hong Kong Herb. 1651 (lecto K000832799; isolecto TAIF20213, TAIF20214), China, Guangdong, Kwangtung, Kwai Sin; see note 1.

Limnanthemum tonkinense Dop (1912) 147. — Nymphoides tonkinensis (Dop) P.H.Ho ̣̂ (1993) 1007. — Lectotype (designated here): Bon 5904 (lecto P00623166;isolecto P00623167), Vietnam,Phùng Dực; see note 2.

Notes — 1. Three specimens exist that can be considered type material of Limnanthemum coronatum . Two of these ( K000832799 and TAIF20214 ) refer to Hong Kong Herbarium number 1651, which Dunn ( Dunn & Tutcher 1912) references in the protologue. A third specimen ( TAIF20213 ) matches the collection locality ( Kwai Sin District , Kwangtung Province) and collection date ( 28 Sept. 1904) of the TAIF20214 specimen, but it lacks the herbarium number 1651. Of the specimens with the herbarium number 1651, K000832799 includes hand-drawn illustrations and most likely would have been consulted by Dunn. Thus we have selected this specimen to be the lectotype .

2. Two collections are listed in the original description of Limnanthemum tonkinense : Bon 5904 (the two specimens listed above) and Mouret 387 (P00623168). All specimens are annotated by Dop. Of the three specimens available, one has more abundant material and also bears a more complete locality label, and we have selected this specimen to be the lectotype.