The following new Rhamnaceae taxa are described and illustrated: Spyridium glaucum Rye, S. minutum Rye, S. montanum Rye, S. mucronatum Rye, S. mucronatum subsp. multiflorum Rye, S. mucronatum subsp. recurvum Rye, S. riparium Rye, Trymalium densiflorum Rye, T. elachophyllum Rye, T. floribundum subsp. trifidum Rye, T. ledifolium var. lineare Rye and T. venustum Rye. Half of these taxa are presently included on the Priority Flora List. Other species of Spyridium and Trymalium on this conservation priority list are also illustrated and two new combinations are made, namely Spyridium majoranifolium (Fenzl) Rye and Spyridium polycephalum (Turcz.) Rye.