Audouinella parva D. J. Garbary

Ganesan, E. K., West, John A. & Jr, Orlando Necchi, 2018, A catalogue and bibliography of non-marine (freshwater and estuarine) Rhodophyta (red algae) of India, Phytotaxa 364 (1), pp. 1-48 : 13

Audouinella parva D. J. Garbary

Garbary, 1987, p. 133.

Taxonomic synonyms: Acrochaetium boergesenii Singh, Pandey et Tiwari sp. nov., [non Acrochaetium boergesenii Schiffner 1931, p. 143 .]; Singh et al. 1984, p. 134–140, 3 Pls., with 21 figs.; Pseudochantransia boergesenii (Singh, Pandey & Tiwari) Ott 2009, p. 374 .

Distribution in India: Uttar Pradesh (Allahabad, in a cemented pond in the University Botany Dept. campus growing on leaves of Vallisneria spiralis L. and Hydrilla verticillata Royle. Oct. to Jan., rarely up to Feb.).

Notes: The specific epithet boergesenii was used first by Schiffner (1931) for a marine species of Acrochaetium from Europe. It was subsequently recorded from the marine waters of Italy ( Furnari et al. 2003) and France ( Báez et al. 2005). The Indian workers, unaware of the existence of the earlier name boergesenii for a marine species of Acrochaetium , used it again for a freshwater species of Acrochaetium from India in 1984, thus making it a later homonym. Garbary (1987, p. 133) pointed out the illegitimacy of A. boergesenii Singh et al. and proposed a new name parva to denote its small size of a few mm high and transferred it from Acrochaeitum to Audouinella . The Indian species is unique because it is the only freshwater red alga from India with an acrochaetoid morphology showing monosporangia, putative carpogonia and spermatangia (see Singh et al. 1984, figs. 7, 8, 9). Silva (2017) and Guiry & Guiry (2017)) accepted Audouinella parva as a valid species.