Following a geometrically asymmetrical cell division during germination of spores of the fern Onoclea sensibilis L., the small cell differentiates into a rhizoid and the large cell divides to form the ...
The perine, or outer coat, of spores of the fern Onoclea sensibilis L. may be chemically removed by a brief treatment with dilute NaClO. Treated spores germinate normally on glass-redistilled H2O, but ...
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