Micrasterias torreyi var. nordstedtiana (Hieron.) Schmidle

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 : 50

publication ID	https://doi.org/10.5252/cryptogamie-algologie2025v46a3
DOI	https://doi.org/10.5281/zenodo.17109031
persistent identifier	https://treatment.plazi.org/id/C7390B66-FFEA-9124-AF83-FC3B0C3AF991
treatment provided by	Plazi
scientific name	Micrasterias torreyi var. nordstedtiana (Hieron.) Schmidle
status

Treatment

( Fig. 6D View FIG )

Botanische Jahrbücher für Systematik Pflanzengeschichte und Pflanzengeographie 26: 48 ( Schmidle 1898).

Micrasterias hieronymusii Schmidle, Botanische Jahrbücher für Systematik Pflanzengeschichte und Pflanzengeographie 26: 49 ( Schmidle 1898).

DISTRIBUTION. — South America. Amazon Basin: Grönblad (1945); Scott et al. (1965); Thomasson (1971); Martins (1986b); Lopes & Bicudo (2003), Cadima (2013). Western Amazonia (lowlands): Araujo (2003).

DESCRIPTION

Cells 235.9-254.7 µm long, 222.0-233.0 µm wide; isthmus 30.2 µm, apex: 64.0 µm; cells 1.1 times longer than wide. Semicircular semicells, five-lobed, deep interlobar incisions, semiopen, finely punctuated cell wall. All lateral lobules of last order (there are five or six on each side) two-pointed; the lateral lobes are inflated in the inner margins, partially covering each other; polar lobes also two-pointed.

Kingdom	Plantae
Phylum	Charophyta
Class	Conjugatophyceae
Order	Zygnematales
Family	Desmidiaceae
Genus	Micrasterias