Cymbella microcephala Grunow

Cymbella microcephala inclut 11 enfants :

• Cymbella microcephala f. intermedia Woodhead & Tweed 1960
• Cymbella microcephala f. minor Grunow 1880
• Cymbella microcephala f. robusta Hustedt 1939
• Cymbella microcephala f. sublinearis Lund 1946
• Cymbella microcephala f. subrostrata Manguin 1952
• Cymbella microcephala f. undulata Fusey 1950
• Cymbella microcephala var. crassa C. W. Reimer
• Cymbella microcephala var. microcephala
• Cymbella microcephala var. robusta Hustedt 1939
• Cymbella microcephala var. rostellata Mayer 1919
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