Rotala floribunda (Wight) Koehne (1880: 156)

Prasanth, Arun & Sardesai, Milind M., 2024, Nomenclatural notes on type materials of fourteen names in Lythraceae, Phytotaxa 660 (3), pp. 243-258 : 247-248

Rotala floribunda (Wight) Koehne (1880: 156)

= Nimmoia floribunda Wight (1837: 20) Lectotype (designated here):—[illustration] Wight’s illustration in Madras Journal of Literature Sciences 5: t 20. 1837. Epitype

(designated here):— INDIA. Maharashtra, Satara, Mahabaleshwar, 17°55’13.9”N 73°37’42.7”E, 05 Jan. 2021, Arun Prasanth

APR0040 (CAL!). Figure 5

Notes: — Two specimens are housed at E E01007803, which was most likely gathered by Stocks and Law, and E01007802. The later sheet E01007802 has two unpublished names of Wight annotated by W.J. Hooker. It appears that neither specimen is the type. Moreover, we were unable to locate any specimens in the K or CAL herbaria. Nevertheless, we were able to find two specimens from the Wight’s 1871 collection at MH, bearing two labels identifying them as Ameletia floribunda and “Type material” annotated by Clarke and Thomas Mathew respectively. However, neither specimen has any evidence indicating that it is a type material. According to Art. 9.3 of the ICN, we are designating Wight’s illustration in Madras Journal of Literature Sciences 5: t 20 (1837), published together with the name, as a lectotype ( Turland et al. 2018). Rotala floribunda is known for its homo- and heterostylous flowers. Wight’s illustration depicts only heterostylous flower, therefore here we designate our collection from Mahabaleshwar deposited in CAL as an epitype following Art. 9.9 of ICN (Turland et al.2019).

Figures

FIGURE 5. Lectotype of Nimmoia floribunda Wight (t 20. 1837).