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For the Palaeozoic coralline alga, see Graticula.
Scientific classification
Kingdom: Chromalveolata
Phylum: Heterokontophyta
Class: Bacillariophyceae
Genus: Craticula

Craticula is a genus of diatom that lies on or in the top layers of sediments in the freshwater to brackish water environments it inhabits.[1][2][3] In addition to frustule morphology the genus differs from closely related species by its sexual reproduction and movement in response to light.[2][3][4]


  1. ^ Brooke, C.; Riding, R. (2000). "Graticula and its derivatives, replacement name for the alga Craticula Brooke". Lethaia 33 (2): 82–82. doi:10.1080/00241160050150203. 
  2. ^ a b Round, F.E.E; D. G. Mann; R. M. Crawford (1990). Diatoms: Biology and Morphology of the Genera. Cambridge University Press. pp. 594–595. ISBN 9780521363181. 
  3. ^ a b Wehr, John D.; Robert G. Sheath (2002). Freshwater Algae of North America: Ecology and Classification. Elsevier Science & Technology Books. p. 647. ISBN 9780127415505. 
  4. ^ Häder, Donat-Peter; Michael Lebert (2001). Photomovement. Elsevier Science & Technology Books. ISBN 9780444507068. 

Further reading[edit]

Morales, Eduardo A.; Le, My (February 2005). "The taxonomy of the diatom Lacunicula sardiniensis Lange-Bertalot, Cavacini, Tagliaventi et Alfinito and its relationship with the genus Craticula Grunow (Bacillariophyceae)". Proceedings of the Academy of Natural Sciences (Proceedings of the Academy of Natural Sciences) 154 (1): 155–161. doi:10.1635/0097-3157(2004)154[0155:TTOTDL]2.0.CO;2. ISSN 0097-3157. 

Morales, Eduardo; Wetzel, Carlos; Rivera, Sinziana (2014). "Craticula strelnikoviana sp nov and Craticula guaykuruorum sp nov (Bacillariophyta) from South American saline lakes". Nova Hedwigia 143: 223–237. doi:10.1127/1438-9134/2014/010. 

Soultanpour-Gargari, Ali; Lodenius, Martin; Hinz, Friedel (July 2011). "Epilithic diatoms (Bacillariophycae) from streams in Ramsar, Iran". Acta Botanica Croatica 70 (2): 167–190. doi:10.2478/v10184-010-0006-5.