"P van Rijckevorsel" wrote in message
...
Sean Houtman schreef
Monographs (publications dedicated to a single group of plants, such as a
genus or subgenus)

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Lots of monographs are devoted to a family.
Several such in the _Flora of Australia_ which is not a single book but
rather a series of monographs.
PvR

Just to highlight how much your replies have helped me and to give you a
giggle
I thought a monograph must be a tonal drawing of some kind

Gramma