Abstract
Recent molecular and morphological studies have solved many taxonomical questions in Adelanthaceae, but several taxa have not been studied recently. Based on studies of type material and additional specimens we synonymize i) Syzygiella riclefii with Syzygiella campanulata, Syzygiella grollei with Syzygiella concreta, Syzygiella virescens and Syzygiella integerrima with Syzygiella contigua, ii) Syzygiella subundulata and Syzygiella colombiana with Syzygiella manca, iii) Syzygiella inouei with Syzygiella setulosa, iv) Syzygiella kerguelensis with Syzygiella tasmanica and v) Syzygiella liberata with Syzygiella trigonifolia.
New lectotypes are designated for Syzygiella manca, Syzygiella plagiochiloides and neotypes for Syzygiella contigua and Syzygiella virescens. The subfamily Adelanthoideae is validated.