Description Of Taxa

Terminology specific to centric diatoms (Fig. 10) y V OOOQO 0 00 00 OQOOOO < > O .VS v voooooooooooooeoooooood. .x yC > ooooooooooooooooooooowooo X is ooooopoooosoooooooooaooonrr 'A jQ> tonooooooooooOoooeoooe y V OOOQO 0 00 00 OQOOOO < > O .VS v voooooooooooooeoooooood. .x yC > ooooooooooooooooooooowooo X is ooooopoooosoooooooooaooonrr 'A jQ> tonooooooooooOoooeoooe > c o doocuoo o s o cc o po o o o o on o eYao qjTdt-i, 000OOC3000C0Cfc Sob OCOCjr.S 300CS opC 002 0 qc ' opooo...

Pennate Diatoms

Asterionella Diagram

Terminology specific to Pennate diatoms (Anonymous, 1975 Mann, 1978 Ross et al., 1979 Takano, 1983 Round et al., 1990) (Fig. 17) Apical pore field area of small pores at the apices of the valves the pores are usually arranged in longitudinal rows, otherwise similar to the ocellus of the centric diatoms. Apical slit field area of elongate pores (slits) at the apices of the valves the pores (slits) are separated laterally by long bars. Foot pole (basal pole) and head pole (apical pole) mainly...

Common Diatom Synonyms

Actinocyclus actinochilus Ehrenberg Simonsen 1982 Charcotia actinochila Ehrenberg Hustedt 1958a Actinocyclus curvatulus Janisch in A. Schmidt, 1878 Coscinodiscus curvatulus var. subocellatus Grunow 1884 Actinocyclus subocellatus Grunow Rattray 1890b Actinocyclus k tzingii A. Schmidt Simonsen 1975 Coscinodiscus k tzingii A. Schmidt 1878 Actinocyclus normanii Gregory Hustedt 1957 Coscinodiscus normanii Gregory in Greville, 1859a Actinocyclus normanii f. subsalsus Juhlin-Dannfelt Hustedt 1957...

Synedropsis Hyperborea

Synedropsis Diatoms

Cells in girdle view narrow with straight parallel sides and greatly expanded triangular foot pole foot pole greatly widened and rounded in valve view, one or two chloroplasts in foot pole only A. glacialis Castracane Round lb. Cells in girdle view broad at foot pole, then suddenly constricted, then gradually widening again to the middle, then tapering toward head pole, two lobed, chloroplasts A. kariana17 Grunow Round Morphometric data A. glacialis apical axis, 30-150 jum length of...