Desmidium swartzii C.Agardh ex Ralfs

SÁNCHEZ, Luzmila, SÁNCHEZ, Fernando R., RÍOS-TOUMA, Blanca & José V. MONTOYA, 2025, Desmidiales (Desmidiaceae, Zygnematophyceae) from lowland rivers and floodplain lakes of Ecuadorian Amazonia, Cryptogamie, Algologie 20 (3), pp. 31-60 : 41-42

publication ID

https://doi.org/10.5252/cryptogamie-algologie2025v46a3

DOI

https://doi.org/10.5281/zenodo.17067971

persistent identifier

https://treatment.plazi.org/id/C7390B66-FFF3-913C-AC90-F8FD0CBDFDCD

treatment provided by

Plazi

scientific name

Desmidium swartzii C.Agardh ex Ralfs
status

 

Desmidium swartzii C.Agardh ex Ralfs

( Fig. 3C, D View FIG )

The British Desmidieae: 61 ( Ralfs 1848). — Diatoma swartzii C.Agardh, Dispositio algarum Sueciae, quam publico examini subjiciunt Carl Adolph Agardh & Elias Magnus Fries, Smolandus: 34 ( Agardh 1812).

DISTRIBUTION. — Cosmopolitan. Amazon Basin: Grönblad (1945); Förster (1969); Thomasson (1971); Cunha de et al. (2013). Western Amazonia (lowlands): Ortega et al. (2007).

DESCRIPTION

Cells 16.0-20.8 µm long, 31.3-33.9 µm wide; cells 1.6-1.9 times wider than long. Pseudofilament triangular, with a single, wavy, dark, longitudinal stripe, formed by the third angle; joints somewhat quadrangular, wider than long, with two slightly angular crenulations on each lateral margin.

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