Any similarities between Phylloglossum and specific subgenera of Lycopodium sens. lat. have been difficult to determine, because the reduced sporophyte of Phylloglossum has few characters for ...
American Journal of Botany, Vol. 83, No. 4 (Apr., 1996), pp. 419-429 (11 pages) Ultrastructural observations reveal that the spermatozoid of Lycopodium obscurum is crescent shaped and contains two ...
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