RT Journal Article
SR Electronic
A1 Wetzel, Carlos E.
A1 Van de Vijver, Bart
A1 Blanco, Saúl
A1 Ector, Luc
T1 On some common and new cavum-bearing Planothidium (Bacillariophyta) species from freshwater
JF Fottea
YR 2019
VO 19
IS 1
SP 50
OP 89
DO 10.5507/fot.2018.016
UL https://fottea.czechphycology.cz/artkey/fot-201901-0005.php
AB Thirteen Planothidium species are illustrated and discussed in a detailed morphological account based on light and scanning electron microscopy analysis of modern and historic materials related to the names Planothidium rostratum (Østrup) Lange-Bertalot and Planothidium frequentissimum (Lange-Bertalot) Lange-Bertalot. Eight species from freshwater environments in Europe, Asia and South America are proposed as new. All taxa here discussed and illustrated belong to the group of species characterized by the presence of a cavum in the rapheless valve. Additional information concerning their distribution and ecology is briefly commented based on a thorough literature revision.