Cribrionella Jovanovska, Cvetkoska, Tofilovska, Ognjanova-Rumenova & Levkov, 2016
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publication ID |
https://doi.org/ 10.11646/phytotaxa.252.1.3 |
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persistent identifier |
https://treatment.plazi.org/id/E33BD466-DD7C-FFF1-29DA-0262FF06EB9A |
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treatment provided by |
Felipe |
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scientific name |
Cribrionella Jovanovska, Cvetkoska, Tofilovska, Ognjanova-Rumenova & Levkov |
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Family Stephanodiscaceae
Cribrionella Jovanovska, Cvetkoska, Tofilovska, Ognjanova-Rumenova & Levkov , gen. nov.
Cells solitary, circular in valve face view. Central area flat, variable in size and shape. Valve central part enclosed with central lamina, also variable in size and shape. Valve marginal lamina with submarginal alveoli followed by large regularly or irregularly arranged areolae. Externally, submarginal alveoli and areolae occluded by cribra. Internally, absence of silicate layers on areolar openings, each areola crossed by thick and inwardly raised circumferential silica trabeculae. Single marginal rimoportula present; externally situated on costa and internally very close to alveolar opening, in oblique position. Marginal fultuportulae positioned on costae and arranged in regular ring, with round and simple external openings at valve-mantle junction. Internally, marginal fultoportulae open through short central tube, laterally surrounded by two satellite pores. Valve face fultoportulae absent. Valvocopula closed, perforated by small pores.
Type:— Cribrionella ohridana (see below).
Etymology:— The genus name refers to the presence of a cribrum on the external areolar openings and the small valve size.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.