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:

Cremnocereus albipilosus : an incredible new columnar cactus from Bolivia

A synopsis of the genus Cleistocactus Lemaire (Cactaceae)

High proportion of cactus species threatened with extinction

Lobivia minutiflora: A cryptic species finally recognised

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

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

Austrocylindropuntia lagopus - clarification of nomenclature and observations in habitat