Phoenix atlantica in 1935 by the French botanist Auguste Chevalier. Its appearance is very similar to "Phoenix dactylifera", being more similar in form to "P. dactylifera" than to "Phoenix canariensis", and possessing characters of both. Tamareira is a clustering palm with 2 to 6 trunks, 5–15 m in height with dark green leaves 2–3 m in length. "P. atlantica" can be distinguished easily from "P. canariensis" by its clustering growth form and its shorter, straighter leaves. The Canary Island date palm is adapted to a wetter climate and cooler temperatures, down to −8 °C. Other distinctions between "P. atlantica" and "P. dactylifera"
Niebla dactylifera species that further differs by a more regularly branched thallus, one that is also broader at the base than above the base. Black dot-like pycnidia are infrequent and inconspicuous at tips of the ultimate branches. The key lichen substances is sekikaic acid, with accessory triterpenes. Pigmentation is weak near base of thallus, the cortex appearing brownish with blackish areas. "Niebla dactylifera" was recognized as a result of undertaking a taxonomic revision of the genus in regard towards development of a lichen flora of Baja California, beginning in 1986. A peer review of the manuscript in 1990 suggested that additional herbarium