Absence of Crassula helmsii in Portugal
Crassula helmsii had been previously reported in EPPO RS 2004/042 as present in Portugal. This information is invalidated by Ing. Teresa Vasconcelos from the Department of Plant Protection and Phytoecology of the Higher Institute of Agronomy, Lisbon (PT) (pers. comm. 2006). Francisca Aguiar also added that there is no record in the Herbarium "João de Carvalho e Vasconcellos" (LISI), which holds more than 96,500 specimens of vascular plants collected in Portugal.
Sources
Personal communication with Francisca Aguiar (PT), 2006.
Personal communication with Ing. Teresa Vasconcelos, Department of Plant Protection and Phytoecology, Higher Institute of Agronomy, Lisbon (PT), 2006.