LOWE, Rex L., J. Patrick KOCIOLEK, & Bart VAN DE VIJVER 2013 (online June 14) Two new Orthoseira species (Bacillariophyceae) from lava tubes on Île Amsterdam and Big Island (Hawai'i) Phytotaxa 111(1): 39-52 Cardnote: Orthoseira verleyenii, O. johansenii