$ 427.12
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1(d). Allium cepa, onion, root tips, l.s. showing all stages of mitosis 2(c). Zea mays, corn, t.s. of typical monocot root 3(c). Iris, t.s. of typical monocot root 4(c). Ranunculus, buttercup, t.s. of a typical dicot root 5(c). Sarothamnus, broom, t.s. through woody root 6(c). Taraxacum, dandelion, t.s. through tap root showing lactiferous ducts7(d). Vicia faba, bean, root nodule t.s. nitrogen fixing bacteria 8(d). Ranunculus ficaria, tuber during fall season, t.s. showing starch 9(d). Alnus, alder, t.s. of tuber showing actinomycetes 10(d). Neottia, orchid, t.s. of root with endotrophic mycorrhiza 11(d). Cuscuta, dodder, on host, t.s. haustorium 12(d). Root hairs, w.m. of root tip, root cap and root hairs 13(d). Zea mays, root tip, median l.s. showing central pith, cap and starch 14(c). Monstera, aerial root t.s. 15(c). Elodea, Canadian waterweed, t.s. of an aquatic root
