BioStor
 | Skizze der vegetationverhältnisse von Santiago in Chile F Meigen (1893) Botanische Jahrbucher fur Systematik, Pflanzengeschichte und Pflanzengeographie 17: 199-294 |
 | Botany of south-western New South Wales F Turner (1904) Proceedings of the Linnean Society of New South Wales 29: 132-181 |
 | Systematic Implications of Pollen Morphology in Subfamilies Lamioideae and Pogostemonoideae (Labiatae) Mones S Abu-Asab and Philip D Cantino (1994) Annals of the Missouri Botanical Garden 81: 653-686 |