Hyalotheca mucosa 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 : 44

publication ID

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

DOI

https://doi.org/10.5281/zenodo.17067979

persistent identifier

https://treatment.plazi.org/id/C7390B66-FFF0-913E-AE4A-FD7A0F88FB73

treatment provided by

Plazi

scientific name

Hyalotheca mucosa Ralfs
status

 

Hyalotheca mucosa Ralfs

( Fig. 3J View FIG )

The British Desmidieae: 53 ( Ralfs 1848).

Hyalotheca ralfsii Kützing , Species algarum: 187 ( Kützing 1849).

DISTRIBUTION. — Cosmopolitan. Amazon Basin: Grönblad (1945); Förster (1969, 1974); Thomasson (1971); Martins (1980); Cadima (2013); Cunha de et al. (2013). Western Amazonia (lowlands): Duque & Núñez-Avellaneda (2000); Núñez-Avellaneda (2008).

DESCRIPTION

Cells 15.4-27.4 µm long, 14.0-14.9 µm wide; cells 1.3-1.8 times longer than wide. Cells cylindrical, quadrangular to rectangular in outline, without median constriction. Cell wall hyaline; ornamented below the apex with a double range of granules. Lateral margins smooth, parallel to each other, apical margin slightly rounded.

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