- Bacillariophyta
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- Bacillariophyceae
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- Orthoseirales
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- Orthoseiraceae
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- Orthoseira
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- Orthoseira americana
- Orthoseira asiatica
- Orthoseira biportulata
- Orthoseira circularis
- Orthoseira dendrophila
- Orthoseira dendroteres
- Orthoseira epidendron
- Orthoseira europaea
- Orthoseira ferrarioana
- Orthoseira frenguellii
- Orthoseira gremmenii
- Orthoseira hamadryas
- Orthoseira johansenii
- Orthoseira roeseana
- Orthoseira roeseana
- Orthoseira tatrica
- Orthoseira tropica
- Orthoseira ursula
- Orthoseira verleyenii
Orthoseira
G.H.K. Thwaites
- Omnidia : ORTO , ORTS
- Sandre : 9495
- Uploaded pictures: 0
