Australian Plant Name Index (APNI)
The Australian Plant Name Index (APNI) is a tool for the botanical community that deals with plant names and their usage in the scientific literature, whether as a current name or synonym. APNI does not recommend any particular taxonomy or nomenclature. For a listing of currently accepted scientific names for the Australian vascular flora, please use the Australian Plant Census (APC) link above.
Lectotype:"Type citation: ‘Swan River, Drummond 1st Coll. and 2nd Coll. n. 4’. Type specimens: Swan River, [Western Australia], 1839, J. Drummond [1st coll.] s.n. (lecto, here designated: K 000686144 image!); Swan River, [Western Australia], 1843, J. Drummond, 2nd Coll. n. 4. (syn: BM 000810391 image!, G 00366924 image!, G 00366946 image!, K 000686143 image! [left hand specimen on the sheet accompanied with illustrations of a stipule and schizocarp], K 000686145 image!, LE 00015634 image!, MEL 7855!, P 00115426 image!, P00115427 image!)."
Etymology:"The epithet is derived from the Latin scutella, ‘a small shield’, and fero, ‘to bear’, in reference to the lateral surfaces of the fruit bearing a ‘little shield’ on both sides of each mericarp ... The prominently raised lateral and median ribs, with the semi-circular concave surface between them, give each mericarp their characteristic shield-like appearance."
by Perkins, A.J.(2019), Molecular phylogenetics and species delimitation in annual species of Hydrocotyle (Araliaceae) from South Western Australia.Molecular Phylogenetics and Evolution134: 139, Fig. 6 (map)