Planothidium marganaiensis sp. nov. (Bacillariophyta), a new cavum-bearing species from a karst spring in south-western Sardinia (Italy)
G.G. Lai, L. Ector, B.M. Padedda, and C.E. Wetzel
Phytotaxa, vol. 489, no. 2, pp. 140-154, 2021
doi:10.11646/phytotaxa.489.2.3