I'm an amateur botanist with a particular, some would say obsessive, interest in South American Cacti, especially those of Andean Bolivia. I've visited there many times and now have a collection of over 10,000 images from my trips. There is still much to discover and I recently discovered and described a new genus of cactus.

My recent publications on Cactaceae can be found here:

2021
A new species of Cumulopuntia (Cactaceae) from north-western Bolivia

2018
What is Lobivia krahn-juckeri?

2017
In the shadow of Illumani

Cremnocereus albipilosus : an incredible new columnar cactus from Bolivia

2016
A synopsis of the genus Cleistocactus Lemaire (Cactaceae)

2015
High proportion of cactus species threatened with extinction

2014
The first Lobivia

2013
Lobivia minutiflora: A cryptic species finally recognised

Two to Turichipa

2012
Molecular phylogeny and character evolution in terete-stemmed Andean opuntias (Cactaceae−Opuntioideae)

A visit to Cajas Bajo, Bolivia

2011
Trichocereus randallii revisited

Notes on cacti from the northwest of Bolivia with a new Echinopsis species

2003
Austrocylindropuntia lagopus - clarification of nomenclature and observations in habitat

2000
A remarkable find at Yavi