File:Rhizosolenia alata Brightw., 1858 in Engler & Prantl 1900.jpg

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Français : A—F : Rhizosolenia alata Bright., 1858 synonyme de Proboscia alata (Brightwell) Sundström, 1986

A Cellule végétative, plusieurs générations avant le début de la formation des auxospores
B Fragment cellulaire au début de la formation des auxospores (vésicules de silice à l'extrémité ouverte)
C Formation de la coquille primaire à l'intérieur de la gaine de silice
D Partie de l'auxospore seule avec des plaquettes de chromatophores en forme de bâtonnets
E Allongement de la cellule primaire après excrétion du du capuchon « Perizonium » encore en contact avec la cellule mère

F l'une des deux cellules primitives formées par division, avec une coquille primaire formée dans la spore et une coquille secondaire formée par division.
Deutsch: A—F : Rhizosolenia alata Bright., 1858 synonym von Proboscia alata (Brightwell) Sundström, 1986

A Zelle vegetativ, noch Generationen vor Beginn der Auxosporenbilduug
B Zellfragment bei beginnender Auxosporenbildung (Kieselbläschen am offenen Ende)
C Bildung der primären Schale innerhalb der Kieselscheide
D Auxosporenteil für sich mit stabartigen Chromatophorenplättchen E Verlängerung der primären Zelle nach Abstoßung der Perizoniumkappe noch in Verbindung mit der Mutterzelle

F eine der beiden durch Teilung entstandeneu Erstlingszellen mit einer primären, in der Spore entstandenen, und einer secundäreu, durch Teilung gebildeten Schale.
Date
Source Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten (Les familles végétales naturelles, ainsi que leurs genres et espèces les plus importantes...), Leipzig, W. Engelmann, 1887-1909, p.51 : voir en ligne
Author A. Engler & K.A.E.Prantl

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current07:53, 18 August 2022Thumbnail for version as of 07:53, 18 August 20221,003 × 729 (145 KB)Gerardgiraud (talk | contribs)Correction légende + recadrage
07:14, 18 August 2022Thumbnail for version as of 07:14, 18 August 20221,006 × 786 (146 KB)Gerardgiraud (talk | contribs)Uploaded a work by A. Engler & K.A.E.Prantl from Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten (Les familles végétales naturelles, ainsi que leurs genres et espèces les plus importantes...) : with UploadWizard

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