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Welcome to gesneria.de.
Due to the wealth of information about gesneriads, we have subdivided the species:
Gesneriads (Gesneriaceae) are a predominantly tropical family, as you can see on the map shown below. They were named after the Swiss theologian and doctor Konrad Gesner, a co-founder of modern zoology. African violets (Saintpaulia) are the best known type. Most Gesneriaceae prefer year-round warm temperatures, according to their tropical origin. Bright, warm locations without direct sunlight are ideal for many of the varieties. There are many genera, types and varieties of gesneriads which are suitable as house plants. Area of Distribution: Gesneriads come predominantly from the tropics and subtropics in the old and new worlds, however 'runaways' can be found to the north (Europe: Pyrenees, Balkan peninsula; Asia: Himalayas, China) and to the south.
Botany: All gesneriads have a common flower construction, which can be recognised by three features: · Five petals that often lay on each other - the upper ones are usually a little narrower · The petals grow at the base and depending on the variety they form a (sometimes very short) stem that is more or less visible. · All gesneriads have two or 2x2 filaments. Care and Maintenance: Gesneriads grow under all sorts of natural conditions; therefore there are no general care instructions that are suitable for all plants. Additional information can be found under the respective genus. Room temperature is always ideal. Only a few varieties can tolerate cold, and hardly any can stand cold water on the leaves. Your gesneriad should be placed in a bright location, but never in direct sun. A loose and moderately fertilised substrate is always a good choice.
The Gesneriaceae family contains 150-160 different genera with more than 3,200 species. The largest genus is Cyrtandra with approximately 600 varieties, followed by Columnea (approximately 270 varieties) and Besleria (over 200 varieties). About 40 genera only consist of a single variety. Here are the best known gesneriads: Achimenes, Aeschynanthus, Alsobia, Allopectus, Briggsia, Chirita, Chrysothemis, Codonanthe, Columnea, Conandron, Corallodiscus, Diastema, Drymonia, Episcia, Eucodonia, Gesneria, Gloxinia, Haberlea, Jancaea, Koellikeria, Kohleria, Mitraria, Nautilocalyx, Nematanthus, Neomortonia, Opithandra, Ramonda, Rehmannia, Rhinchoglossum, Saintpaulia, Seemannia, Sinningia, Smithiantha, Streptocarpus and Titanotrichum. Of these, only a few are cultivated and available for sale. Additional information about the botany of gesneriads can be found here: http://persoon.si.edu/gesneriaceae/checklist/ Unfortunately, we had to adjust our guestbook due to too much spam. Please contact us by e-mail or use our secured guestbook in our online shop. Have fun reading and searching through the hopefully informative pages at www.gesneria.de
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