Publikation: Morphology and anatomy of male cones of Pseudotaxus chienii (W.C. Cheng) W.C. Cheng (Taxaceae)
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2011
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Flora : Morphology, Distribution, Functional Ecology of Plants. 2011, 206(5), pp. 444-450. ISSN 0367-2530. eISSN 1618-0585. Available under: doi: 10.1016/j.flora.2010.08.006
Zusammenfassung
Results of the present study indicate that male cones of Pseudotaxus chienii are representing inflorescences with strongly reduced flowers. The results fit quite well with investigations showing that sporangiophores of Taxus and also of Pseudotaxus comply with reduced flowers. The only difference between male cones in Taxus and Pseudotaxus is the absence of pherophylls in Taxus. Furthermore our results complete a transition series beginning with Cephalotaxus going on to Pseudotaxus and ending with Taxus and Torreya. In this progression Pseudotaxus can be regarded as an intermediate link between the inflorescences of Cephalotaxus and the simple, unbranched cones of Taxus. The entire transition series shows that sporophyll-like sporangiophores can be derived by reduction of lateral cones. There is however no sign that a similar process has occurred in other conifer groups.
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570 Biowissenschaften, Biologie
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Cephalotaxus, Torreya, Gymnosperms, Evolution, Sporangiophore
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DÖRKEN, Veit, Zhixiang ZHANG, Iris B. MUNDRY, Thomas STÜTZEL, 2011. Morphology and anatomy of male cones of Pseudotaxus chienii (W.C. Cheng) W.C. Cheng (Taxaceae). In: Flora : Morphology, Distribution, Functional Ecology of Plants. 2011, 206(5), pp. 444-450. ISSN 0367-2530. eISSN 1618-0585. Available under: doi: 10.1016/j.flora.2010.08.006BibTex
@article{Dorken2011Morph-30515,
year={2011},
doi={10.1016/j.flora.2010.08.006},
title={Morphology and anatomy of male cones of Pseudotaxus chienii (W.C. Cheng) W.C. Cheng (Taxaceae)},
number={5},
volume={206},
issn={0367-2530},
journal={Flora : Morphology, Distribution, Functional Ecology of Plants},
pages={444--450},
author={Dörken, Veit and Zhang, Zhixiang and Mundry, Iris B. and Stützel, Thomas}
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