Phyllocladus and Its Bearing on the Systematics of Conifers

  • Hsuan Keng
Part of the Plant Systematics and Evolution / Entwicklungsgeschichte und Systematik der Pflanzen book series (SYSTEMATICS, volume 1)


The so-called phylloclade—the flattened, simple or compound, leaf-like organ which emerges from the axil of an acicular leaf—of Phyllocladus is a complicated lateral branch system. It possibly represents a relic structure resembling the photosynthetic organ of the advanced members of Progymnosperms. It is therefore suggested to uphold the erection of a monogeneric family Phyllocladaceae as proposed by Core, and to accept the basic scheme of classification of Coniferales as proposed by Buchholz.


Female Gametophyte Primary Branch Short Shoot Photosynthetic Organ Tertiary Branch 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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© Springer-Verlag 1977

Authors and Affiliations

  • Hsuan Keng
    • 1
  1. 1.Department of BotanyUniversity of SingaporeSingapore 10Singapore

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