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Culture experiments and cytological studies were carried out under well-defined conditions. The haploid chromosome number is between 18 and There are two morphological types of plants: the well-branched gametophyte resembling the plants found in nature, and the unbranched sporophytic form which may be haploid or diploid, found only in cultures.
Stephen King was born in Portland, Maine, on September 21, After graduating with a Bachelor's degree in English from the University of Maine at Orono in , he became a teacher. His spare time was spent writing short stories and novels. King's first novel would never have been published if not for his wife.