EVIDENCE OF SIMPLE POLYEMBRYONY IN PERMIAN SEEDS FROM ANTARCTICA
Well‐preserved seeds with multiple embryos are described from the Permian of the Beardmore Glacier region, Antarctica. The seeds are platyspermic, winged and contain two archegonia in the micropylar end. Each archegonium contains an undifferentiated, multicellular embryo at a comparable stage of dev...
Published in: | American Journal of Botany |
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Main Authors: | , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
1986
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Subjects: | |
Online Access: | http://dx.doi.org/10.1002/j.1537-2197.1986.tb08552.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fj.1537-2197.1986.tb08552.x https://onlinelibrary.wiley.com/doi/pdf/10.1002/j.1537-2197.1986.tb08552.x http://api.wiley.com/onlinelibrary/chorus/v1/articles/10.1002%2Fj.1537-2197.1986.tb08552.x |