¤ Many thanks to the Royal Horticultural Society for allowing me to use its descriptions.
Particularly Pam Hayward and David Chamberlain.
¤ Thanks also to Jens Birck (Danemark), Chris Callard (Angleterre), Frédéric Danet (France), Don Hyatt (Etats Unis), John McQuire (Angleterre), Graham Smith (New-Zealand), Kristian Theqvist (Finland) and Garth Wedemire (Canada) for sending me photos to illustrate my cards.
There are two ways you can use this classification depending on your knowledge :
1) the alphabetical list : cover the letter with your mouse in order to open a list of species whose name begins with this letter. Use the wheel of your mouse or the scroll box to move up or down the list. Then to open a card click on its name.
2) the classification : click successively on the different sections and subsections of the classification in order to find the species you want to see on the card. To open the card click on it.
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All the cards contain the description of the subgenus of the section or of the subsection to which the species belongs and the names of the other species which make it up.
If you cover technical words with your mouse a window will open with a picture or a drawing.
This makes it easier to identify the common features of a section or a subsection while examining the pictures of the others.
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