Epidermal cells of Allium cepa (onion), flat mount shows typical plant cells with nuclei, cytoplasm and cell walls

Epidermal cells of Allium cepa, w.m. of bulb scale epidermis, unstained preparation special mounted for phase contrast observation

Epidermal cells of Allium cepa, plasmolysis, w.m. turgid piece and plasmolized piece of onion epidermis for comparison

Epidermal cells of Allium cepa, specially fixed and stained to show the mitochondria *

Mitosis, l.s. from Allium root tips showing all stages of plant mitosis carefully stained with a quadruple stain

Mitosis, l.s. from Allium root tips showing all stages of plant mitosis, specially stained with fuchsin & fast green

Mitosis, l.s. from Allium root tips showing all stages of plant mitosis carefully stained with iron-hematoxyline after Heidenhain

Mitosis, squash preparation from Allium root tip, shows intact mitotic stages, Feulgen stain *

Mitosis, l.s. from Allium root tips showing all stages of plant mitosis stained by Feulgen stain *

Mitosis, squash preparation from Allium root tip, shows intact mitotic stages, orceine stained

Mitosis, squash preparation from Allium root tip, treated with colchicine for metaphase stages, orceine stained*

Mitosis, t.s. from Allium root tips showing all stages of plant mitosis in polar view

Mitosis, squash preparation from Vicia faba root tips, showing intact mitotic stages, Feulgen stain *

Mitosis, l.s. from Hyacinthus root tips showing all stages of plant mitosis carefully stained with a quadruple stain. Specially large chromosomes, for demonstration of plant mitosis

DNA and RNA, thin l.s. from Allium root tips, specially fixed and stained with methylgreen and pyronine to show DNA and RNA in different colours *

Mitosis, l.s. from Vicia faba (bean) root tips showing all mitotic stages

Meiosis, t.s. of Lilium anthers showing different stages of meiotic divisions

Mitochondria, thin l.s. of Allium root tips specially fixed and stained to show the mitochondria clearly

Chloroplasts, in sec. of Tradescantia shoot

Chromoplasts, w.m. of petal of Viola (violet)

Chromoplasts, t.s. of root of Daucus carota (carrot)

Chromoplasts, in w.m. of piece of petal from Tropaeolum

Plasmodesmata, in t.s. of palm seed (Phytelephas)

Chloroplasts, w.m. of leaf of Elodea or Spinacea showing detail of large chloroplasts

Lilium, anther t.s., very young with microspore mother cells and tapetal layers