Warning on succulent plant names

It is necessary to make strong emphasis about plant names which are subject to modifications or comments from specialists...
These modifications may lead to poor results in database even if photograph exists but recorded under an other name. On the other hand we may have two pictures for the same plant under two different names.
It was decided to register in the database names provided by contributors (person providing the picture).
However database taxonomy is using the names to be enforced according to modern botanical family reference books. They are are listed below.
Be carefull about names used for querries: any mistake in name may lead to wrong results.

Taxonomy reference books

For Aloe and Pachypodium

NEWTON Leonard E. & ROWLEY Gordon D., 2001. – CITES Aloe & Pachypodium checklist. – Kew : Royal botanic gardens ; Zürich : Sukkulenten-Sammlung, 160 p. – ISBN 1-84246-034-X

For the Asclepiadaceae family

ALBERS Focke & MEVE Ullrich (Eds.), 2002. – Illustrated handbook of succulent plants : Asclepiadaceae. – Berlin ; Heidelberg ; New York : Springer, 318 p. – (Illustrated handbook of succulent plants). - ISBN 3-540-41964-0

For the Cactaceae family

HUNT David (Ed.), 1999. – CITES Cactaceae checklist. – 2nd ed. – Kew : Royal botanic gardens ; Zürich : I.O.S., 315 p. – ISBN 1-900347-45-8

For the Crassulaceae family

EGGLI Urs (Ed.), 2003. – Illustrated handbook of succulent plants ; Crassulaceae. – Berlin ; Heidelberg ; New York : Springer, 458 p. – (Illustrated handbook of succulent plants). – ISBN 3-540-41965-9

For the Euphorbia genius

CARTER Susan & EGGLI Urs, 1997. – The CITES checklist of succulent Euphorbia taxa (Euphorbiaceae). – Bonn : German federal agency for nature conservation, 70 p. – ISBN 3-89624-609-7

For the Mesembryanthemaceae family (Aizoaceae family)

HARTMANN Heidrun E. K. (Ed.), 2002. – Illustrated handbook of succulent plants : Aizoaceae A-E. – Berlin ; Heidelberg ; New York : Springer, 285 p. – (Illustrated handbook of succulent plants). – ISBN 3-540-41691-9

HARTMANN Heidrun E. K. (Ed.), 2002. – Illustrated handbook of succulent plants : Aizoaceae F-Z. – Berlin ; Heidelberg ; New York : Springer, 371 p. – (Illustrated handbook of succulent plants). – ISBN 3-540-41723-0

For most other succulent plants

EGGLI Urs (Ed.), 2001. – Illustrated handbook of succulent plants : monocotyledons. – Berlin ; New York ; Paris [etc.] ; Springer, 354 p. – (Illustrated handbook of succulent plants). – ISBN 3-540-41692-7

EGGLI Urs (Ed.), 2002. – Illustrated handbook of succulent plants : dicotyledons. – Berlin ; New York ; Paris [etc.] : Springer, 545 p. – (Illustrated handbook of succulent plants). – ISBN 3-540-41966-7