VAN DE VIJVER, Bart, Sandra WILFERT, Vaclav HOUK, & David M. JOHN 2019 (Jan. 15) Angusticopula rowlingiana, a new melosiroid diatom (Bacillariophyta) from Ascension Island (South Atlantic Ocean) Phytotaxa 388(2): 155-160, 18 figs., 1 table