From Frustule
| Bullula, Bullulae |
- A bubble-like void in the basal siliceous layer amongst well-separated areolae with thin walls.
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References
- Anon., 1975. Proposals for a Standardization of Diatom Terminology and Diagnosis. Nova Hedwigia, Beihette Symposium, 53, pp. 323-354.
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External Links
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