Slackia Griff. Dataset Catalogue of Life Rank UNRANKED Published in (1854). In: Notul. 4: 158. Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Lamiales family Gesneriaceae genus Beccarinda Name Homonyms Slackia Griff. Slackia Wade et al., 1999 emend. Nagai et al., 2010 Slackia Griff. Slackia Griff.