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Eastern dwarf mistletoe; Germination


Embryos of germinating seeds of Arceuthobium pusillum have four histological zones: the protoderm of the radicular apex, which remains distinct throughout germination and through anticlinal divisions gives rise to the epidermis; the procambium, which matures into a simple vascular strand in the mature radicle; the ground meristem, which matures into the cortex; and the promeristem, from which the procambium and ground meristem are derived.

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