Drosera peltata (Shield Sundew)

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A 2018 de Salis paper in Muelleria 36:97-106 has not yet been assessed by all the herbaria for APC, which is possibly why the name Drosera gunniana doesn’t appear in the on-line Flora of Victoria (although the name does come up in AVH, see https://avh.ala.org.au/occurrences/search?q=taxa%3A%22Drosera+gunniana%22#tab_mapView), on-line Flora of NSW, or in the ACT Plant Census. The fact that it’s in APII only indicates that the name has been published, not that it has been accepted by the herbaria. The Australian National Herbarium people have now added it to the list of taxa to be reviewed by all the herbaria for APC, but this process could take another 6 months or more.

So, in the meantime, CNM accepts the taxonomic case presented by de Salis for accepting the name D. gunniana. The main differences between ACT Drosera species are shown in the table below. The characters in bold apprear to be most reliable

	D. gunniana	D. hookeri	D. peltata
Habit	usually single-stemmed (but may appear different if grazed back); to 30+ cm tall; leaves present along the whole stem	Short, multi-stemmed, to 10 cm tall	Stems ... frequently leafless in upper half
General colour of plants	pale olive-green, often suffused with orange and can be almost entirely red	yellow-green to distinctly yellow (no red staining)
Basal rosette of leaves - colour	Presumably same as whole plant	presumably same as whole plant	Red
Petal colour	pink or white	white
sepals	hirsute; lamina covered in dense hairs 0.8-1.2 mm long, scarcely longer on the margins	hirsute; lamina sparsely covered in hairs 0.3-0.6 mm long, longer on the margins	hirsute
Flower bud	roughly spherical; dark olive-green (but also range to dark maroon)	longer than broad; yellowish-green
Distribution	SA, Vic, Tas and NSW	SA, Vic and Tas	Not stated, but includes NSW