Umbellifer Monographs and Revisions
news and progress reports of new and ongoing monographic research
Acronema and related genera in the Sino-Himalaya, Royal Botanic Garden Edinburgh, UK
The genus Apium in Europe, Royal Botanic Garden Edinburgh, UK
Cortia and Cortiella in the Sino-Himalaya, Royal Botanic Garden Edinburgh, UK
Studies on the genus Eryngium, Staatlliches Musum für Naturkunde, Stuttgart, Germany
Studies on Prangos s.l. in Turkey, Gaza University, Turkey & Royal Botanic Garden Edinburgh, UK
The Trachyspermums of Socotra, Royal Botanic Garden Edinburgh, UK