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Issue: Vol. 721 No. 3: 8 Oct. 2025
Type: Article
Published: 2025-10-08
DOI: 10.11646/phytotaxa.721.3.1
Page range: 201-217
Abstract views: 304
PDF downloaded: 11

Morphology of alveolate species of the genus Cocconeis (Cocconeidaceae, Bacillariophyta) with the description of Monoalveoneis gen. nov.

Komarov Botanical Institute of the Russian Academy of Sciences, St. Petersburg, Russia; K.A. Timiryazev Institute of Plant Physiology RAS, IPP RAS, 35 Botanicheskaya St., 127276 Moscow, Russia
Komarov Botanical Institute of the Russian Academy of Sciences, St. Petersburg, Russia
Komarov Botanical Institute of the Russian Academy of Sciences, St. Petersburg, Russia
K.A. Timiryazev Institute of Plant Physiology RAS, IPP RAS, 35 Botanicheskaya St., 127276 Moscow, Russia
Institute of Oceanography, Viet Nam Academy of Science and Technology, 01 Cau Da, Nha Trang Viet Nam
K.A. Timiryazev Institute of Plant Physiology RAS, IPP RAS, 35 Botanicheskaya St., 127276 Moscow, Russia
Cocconeis Monoalveoneis monoalveolus monoraphid diatoms morphology new genus Algae

Abstract

A new genus Monoalveoneis gen. nov. is proposed based on the results of morphological analysis of some Cocconeis taxa. The new genus is characterised by a distinct type of alveoli, which has large elongated openings on the outside of the valve and small foramina on the inside. A new term, monoalveolus, is suggested to describe this type of structure. Besides a special type of areolae, the new genus is characterized by high edge of both valvocopulae and shape of their fimbriae. The variety of alveoli structure in various groups of diatoms is discussed.

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How to Cite

Yurchak, M., Gogorev, R., Sokolova, I., Kezlya, E., Doan-Nhu, H. & Kulikovskiy, M. (2025) Morphology of alveolate species of the genus Cocconeis (Cocconeidaceae, Bacillariophyta) with the description of Monoalveoneis gen. nov. Phytotaxa 721 (3): 201–217. https://doi.org/10.11646/phytotaxa.721.3.1