National University of Ireland, Galway
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Longitudinal section of a fern crozier (Asplenium elliottii)
Crozier embedded in Paraplast; stained with Delafield's hematoxyline
Transverse section of a fern root tip showing the central apical cell
Root tip embedded in Technovit 7100, section stained with toluidine blue
Transverse vibratome section of a Hippuris stem stained with calcofluor white (dye for beta-glucans)