Karenia selliformis A.Į.Haywood, K.A.Steidinger et L.MacKenzie 2004
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publication ID |
https://doi.org/10.1515/bot-2024-0083 |
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persistent identifier |
https://treatment.plazi.org/id/DA5BB272-BF35-FFF0-2EAD-688EFA94FB35 |
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treatment provided by |
Felipe |
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scientific name |
Karenia selliformis A.Į.Haywood, K.A.Steidinger et L.MacKenzie 2004 |
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3.1.2 Karenia selliformis A.Į.Haywood, K.A.Steidinger et L.MacKenzie 2004
The cells were solitary, oval, longer than wide, strongly dorsoventrally compressed, 30 – 33 μm long, and 24 – 27 μm wide, with a length to width ratio of about 1.2 ( Figure 3 View Figure 3 ). The epicone was broadly dome-shaped with slightly convex sides. The hypocone was hemispherical with a bilobed, centrally excavated antapex and a slightly protruding right lobe ( Figure 3A, B, E – I View Figure 3 ). The cingulum was slightly premedian, descending, and displaced by 1.5 – 2 cingular widths. The sulcus was narrow; its left margin opened onto the epicone as a narrow extension ( Figure 3A, B, E, F View Figure 3 ). The narrow and linear apical groove originated just above and slightly to the right of the proximal end of the cingulum and extended across the apex to about one-third down on the dorsal side of the epicone. The apex was slightly indented by the apical groove ( Figure 3A, B, E, F, H, I View Figure 3 ). The nucleus was large, oblong, transversely elongated, and located in the center of the hypocone ( Figure 3C, I, J, L View Figure 3 ). The cytoplasm contained numerous (48 – 56) plate-like, elongated, golden-brown chloroplasts with internal pyrenoids ( Figure 3C, D, K View Figure 3 ).
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