On the Megagametophytes of Two Lepidodendracean Cones

@article{BrackHanes1978OnTM,
  title={On the Megagametophytes of Two Lepidodendracean Cones},
  author={S. D. Brack‐Hanes},
  journal={Botanical Gazette},
  year={1978},
  volume={139},
  pages={140 - 146}
}
Lepidodendracean fructifications with well-preserved megagametophytes are described from Pennsylvanian petrifactions of eastern Kentucky. One cone is megasporangiate with one functional alate spore in each sporangium; the other cone is bisporangiate with spinose megaspores and papillate microspores. Both strobili have megaspores that contain prothallia with rhizoids and well-developed archegonia. Ontogenetic stages of megagametophytic development in these cones are comparable to stages that… Expand
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Reproduction of heterosporous arborescent lycopods in the Mississippian—Pennsylvanian of Euramerica
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Palaeobotany is blooming: 1970–1979, a review
Systematics, Phylogenetics, and Reproductive Biology of Flemingites arcuatus sp. nov., an Exceptionally Preserved and Partially Reconstructed Carboniferous Arborescent Lycopsid
Ultrastructural studies of in situ devonian spores: Protobarinophyton pennsylvanicum Brauer
PARALYCOPODITES MOREY & MOREY, FROM THE CARBONIFEROUS OF EURAMERICA—A REASSESSMENT OF GENERIC AFFINITIES AND EVOLUTION OF “LEPIDODENDRON” BREVIFOLIUM WILLIAMSON
Arborescent lycopod reproduction and paleoecology in a coal-swamp environment of late Middle Pennsylvanian age (herrin coal, Illinois, U.S.A.)
PROTOBARINOPHYTO N PENNSYL VANICUM BRAUER
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