Photo 121087, (c) Ferran Jimenez Cortadelles, some rights reserved (CC BY-NC)

Attribution © Ferran Jimenez Cortadelles
some rights reserved
Uploaded by ferran ferran
Source MINKA
Original https://minka-sdg.org/photos/121087
Associated observations

Photos / Sounds

Observer

ferran

Date

December 4, 2016

Place

Spain (Google, OSM)

Description

Surirella ovata Kütz.

Surirella discretament heteropolar, de forma ovalada, extremitats arrodonides, longitud 24 µm, amplada 8 µm; 50 costelles en 100 µ, que arriben quasi al centre de la valva, les estries són paraleles, esdevenint lleugerament radials als extrems, en nombre de 18 en 10 µm, situades, en nombre de 3 o 4 entre cada espai intercostal i arriben al centre de la valva, deixant un estret pseudorafe longitudinal.

Mostra de la Riera de Clariana, Molí de Contrast, Anoia (Barcelona)
En aquesta data i lloc, l'aigua te un pH de 7.4 i una conductivitat de 1181 µS/cm.

Germain, H. 1981. FLORE DES DIATOMÉES. Ed. Boubée

Associated taxa
Sizes
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