Arabidella

Life-forms

Classification System: APG IV

Superregnum: Eukaryota
Cladus: Orthokaryota
Cladus: Neokaryota
Cladus: Photokaryota
Cladus: Diaphoretickes
Cladus: CAM
Regnum*: Archaeplastida
Regnum: Plantae
Regnum*: Viridiplantae
Cladus: Streptophyta
Cladus: Phragmoplastophyta
Cladus: Embryophyta
Cladus: Polysporangiophyta
Divisio*: Tracheophyta
Cladus: Eutracheophyta
Cladus: Euphyllophytina
Cladus: Megaphylla
Cladus: Radiatopses
Cladus: Lignophyta
Cladus: Metalignophyta
Diviso*: Spermatophyta
Classis*: Angiospermae
Cladus: Mesangiospermae
Cladus: Eudicota
Cladus: Core eudicots
Cladus: Rosids
Cladus: Eurosids II
Ordo: Brassicales

Familia: Brassicaceae
Subfamilia: Brassicoideae
Tribus: Microlepidieae
Genus: Arabidella
Species: A. chrysodema – A. eremigena – A. filifolia – A. glaucescens – A. nasturtium – A. procumbens – A. trisecta
Name

Arabidella O.E.Schulz Pflanzenr. (Engler) Crucif.-Sisymbr. 177 (1924)

Type species: Arabidella trisecta O.E. Schulz Pflanzenr. (Engler) Crucif.-Sisymbr. 177 (1924)

Note: Heenan et al., have provided evidence that this genus is polyphyletic, particularly with respect to the shrubby and annual species, and the type species Arabidella trisecta. However, the further studies required to resolve this problem have yet to be undertaken.
References

Schulz, O.E. 1924. Das Pflanzenreich (Engler) 177.
Arabidella in: Australian Plant Census (APC) 2017. IBIS database, Centre for Australian National Biodiversity Research, Council of Heads of Australasian Herbaria. Accessed: 2017 Jan. 22.
Heenan, P.B., Goeke, D.F., Houliston, G.J. & Lysak, M.A. 2012. Phylogenetic analyses of ITS and rbcL DNA sequences for sixteen genera of Australian and New Zealand Brassicaceae result in the expansion of the tribe Microlepidieae. Taxon 61(5): 970–979. Full text PDF Reference page.
International Plant Names Index. 2017. Arabidella. Published online. Accessed: Jan. 22 2017. Reference page.
Koch, M.A. et al. 2017. Arabidella in BrassiBase Tools and biological resources to study characters and traits in the Brassicaceae. Published online. Accessed: 2017 Jan. 22.
Tropicos.org 2017. Arabidella. Missouri Botanical Garden. Published online. Accessed: 22 Jan. 2017.
Warwick, S.I., Francis, A. & Al-Shehbaz, I.A. 2006. Brassicaceae: species checklist and database on CD-Rom. Plant Systematics and Evolution 259(2–4): 249–258. DOI: 10.1007/s00606-006-0422-0 ResearchGate Reference page.

Arabidella is a genus of flowering plants belonging to the family Brassicaceae.[1] It was first described in 1853 by Ferdinand von Mueller as a subgenus of Erysimum (in the family Cruciferae - now Brassicaceae) to give the name, Erysimum subg. Arabidella,[2][3] but was elevated to genus status by Otto Eugen Schulz in 1924.[2][4] The type species is Arabidella trisecta.[2]

A molecular study in 2022[5] redescribed the genus and differentiated it from Lemphoria, describing Arabidella species as being shrubs or subshrubs, and rarely annual herbs, and having lower leaves divided into 2-3 linear to filiform lobes; having confluent nectar glands together with median glands, having 20-90 ovules 20–90 per ovary and having linear fruits. Species in the Lemphoria genus are annual herbs whose lower leaves are essentially pinnate, with lateral nectar glands and no median glands, and having 6-70 ovules per ovary and oblong fruits.[5]

Its native range is Australia,[1] and is found throughout the mainland[6] ("endemic in the semi-arid regions of Australia").[7][8]
Species

Species given by Plants of the World Online (March 2021)[1]

Arabidella chrysodema Lepschi & Wege
Arabidella eremigena (F.Muell.) E.A.Shaw
Arabidella filifolia (F.Muell.) E.A.Shaw
Arabidella glaucescens E.A.Shaw
Arabidella nasturtium (F.Muell.) E.A.Shaw
Arabidella procumbens (Tate) E.A.Shaw
Arabidella trisecta (F.Muell.) O.E.Schulz

Species after phylogenetic studies in 2022 where the genera Lemphoria and Arabidella are recircumscribed:[5]

Arabidella nasturtium
Arabidella filifolia
Arabidella. glaucescens
Arabidella trisecta

References

"Arabidella (F.Muell.) O.E.Schulz | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 18 March 2021.
"Arabidella". Australian Plant Name Index, IBIS database. Centre for Plant Biodiversity Research, Australian Government. Retrieved 15 September 2022.
Mueller, F.J.H. von (1853). "Diagnoses et descriptiones plantarum novarum, quas in Nova Hollandia". Linnaea: Ein Journal für die Botanik in ihrem ganzen Umfange, oder Beiträge zur Pflanzenkunde. 25: 369.
Schulz, O.E. (22 July 1924). Engler, H.G.A. (ed.). "Cruciferae". Das Pflanzenreich (in Latin). 86: 177, fig. 33.
MARTIN A. LYSAK; MARK EDGINTON; SHENG ZUO; XINYI GUO; TEREZIE MANDÁKOVÁ; IHSAN A. AL-SHEHBAZ (8 June 2022). "Transfer of two Arabidella and two Cuphonotus species to the genus Lemphoria (Brassicaceae) and a description of the new species L. queenslandica" (PDF). Phytotaxa. 549 (2): 235–240. doi:10.11646/PHYTOTAXA.549.2.9. ISSN 1179-3155. Wikidata Q113986938.
"Arabidella (F.Muell.) O.E.Schulz". www.gbif.org. Retrieved 15 September 2022.
H.J.Hewson. "Arabidella". Flora of Australia. Australian Biological Resources Study, Department of Climate Change, the Environment and Water: Canberra. Retrieved 15 September 2022.

"Flora of Victoria: Arabidella". vicflora.rbg.vic.gov.au. Retrieved 15 September 2022.

Further reading
Elizabeth A. Shaw (1965). "Taxonomic revision of some Australian endemic genera of Cruciferae". Transactions and Proceedings of the Royal Society of South Australia. 89: 145–253. ISSN 0372-0888. Wikidata Q113986953.