Hortus Exoticus, Beiträge zur Freilandkultur winterharter Exoten

Hortus Exoticus, Heft 2011/12
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Ein Pflanzenporträt: Taiwania cryptomerioides Hayata, B. Demes
Abstract: Taiwania cryptomerioides Hayata and its variety flousiana (Gaussen) Silba should no longer regarded as not hardy enough for Central European gardens. Some specimens are growing in German gardens for many years. - With 5 figures.
Keywords: hardiness - Taiwania cryptomerioides - var. flousiana
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Die frostverträgliche Manfreda virginica (L.) Salisb. ex Rose (Agavaceae), I. Richter
Abstract: Most probably the xerophytic Manfreda virginica (L.) Salisb. ex Rose (Agave virginica L., Agavaceae) is hardy enough for Central European gardens in Zone 7 and suggested for ornamental display in exotic gardening. Comments on the taxonomical status, hardiness and cultural requirements are given. - With 6 figures.
Keywords: Agave virginica - Agavaceae - hardiness - Manfreda virginica - ornamental plant
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Inventory, threatened status and taxonomy of Trachycarpus takil in Uttarakhand, India, M. Lorek
Abstract: An assessment of natural and cultivated stands of the Indian species Trachycarpus takil in Uttarakhand, India, revealed that T. takil is critically endangered. The populations are concentrated in three areas and the pressure of human activities is very high. Some populations are extinct or almost so. Trachycarpus takil is closely related to T. fortunei. - With 4 figures and 1 table.
Keywords: IUCN assessment - Trachycarpus takil - threatened status - Uttarakhand
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Der Botanische Garten der Johannes Gutenberg-Universität Mainz, B. Demes
Abstract: The botanical garden of the University of Mainz, Germany, contains some very ornamental exotic plants suitable for growing in Central European gardens. Several examples are treated in this article. - With 13 figures.
Keywords: botanical garden Mainz - Central European climate - exotic plant
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Winterhärte der Butia capitata-Keimlinge, M. Lorek
Abstract: The fruits of Butia capitata (Mart.) Becc. carry up to three embryos. Possibly, this might be a strategy of resisting stress factors, for example frost. The survival of the three embryos was tested under comparable conditions in plain garden soil. No significant difference in the frost resistance occurred within the different embryo groups. More field-studies with a larger number of samples are needed. - With 11 figures and 1 table.
Keywords: Butia capitata - frost resistance - three embryos
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