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Authority

Ostenf., in Ostenfeld & Schmidt (1902: 141)

Class

Prasinophyceae

Order

Chlorodendrales

Family

Halosphaeraceae

Additional References

Throndsen (1997: 664, pl. 12)

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Basionym

N/A

Synonyms

N/A

Description

Phycoma stage: Cells spherical, 10 µm diameter (13 µm including alae); walls with low curved parallel alae in a hexagonal arrangement.

Distribution

Coastal waters, Davis Station, East Antarctica.

Comments

Material from the Antarctic resembles P. polygonum Ostenf., which has a cell body of 30 µm diameter and alae in a pentagonal pattern (Throndsen, 1997: 664, pl. 12). Members of the genus were discussed by Parke et al. (1978).

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