• 

  The Families of Flowering Plants - Menyanthaceae Dum.

  http://www1.biologie.uni-hamburg.de/b-online/delta/angio/www/menyanth.htm

  Description of Menyanthaceae Dum., generated from a DELTA database.

• 

  Angiosperm families - Leguminosae-Caesalpinioideae Kunth

  http://www.delta-intkey.com/angio/www/caesalpi.htm

  Description of Leguminosae-Caesalpinioideae Kunth, generated from a DELTA database.

• 

  Angiosperm families - Gesneriaceae Dum.

  http://www.delta-intkey.com/angio/www/gesneria.htm

  Description of Gesneriaceae Dum., generated from a DELTA database.

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