Yero’s Monograph to be published: we need your help !

We are pleased to announce that Yero Kuethe’s long-awaited monograph on the genus Passiflora is expected to be published in about 18 months’ time

It will be in full colour and contain some 1500 pages around A4 in size, in 2 hardback volumes.

As you know, this is the first monograph on Passiflora since Killip, whose work was published almost 100 years ago, had no illustrations and was restricted to American species.

In contrast, Yero’s work will have worldwide coverage and be fully illustrated. It will be indispensable to any Passiflora enthusiast.

To assist their pricing and planning generally, the publishers need an idea of how many individuals and others are likely to buy a copy.

To help answer this question, please could you let PSI know how likely YOU are to buy a copy by completing the simple form here, where you will also find more information about the monograph.

The form is just for guidance and won’t commit you.

First published on 5 September, 2026.