Jovellana

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Lamiids
Ordo: Lamiales

Familia: Calceolariaceae
Genus: Jovellana

Species: J. punctata – J. repens – J. sinclairii - J. violacea
Name

Jovellana Ruiz & Pav. Fl. Peruv. 1: 12. (1798)
Type species: Not designated.

References

Ruiz, H. & Pavon, J. 1798. Flora Peruviana, et Chilensis, sive Descriptiones, et icones plantarum Peruvianarum, et Chilensium, secundum systema Linnaeanum digestae, cum characteribus plurium generum evulgatorum reformatis. Tomus I. VI + 78 pp., tt. 1–106. Typis Gabrielis de Sancha, Madrid. Biblioteca Digital BHL Reference page.
Nylinder, S. et al. 2012. A dated species-tree approach to the trans-Pacific disjunction of the genus Jovellana (Calceolariaceae, Lamiales). Taxon, 61(2): 381–391. Available on line [1]. Accessed 2014 June 7.
Govaerts, R. et al. 2014. Jovellana in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2014 May 31. Reference page.
Tropicos.org 2014. Jovellana. Missouri Botanical Garden. Published online. Accessed: 31 May 2014.
International Plant Names Index. 2014. Jovellana. Published online. Accessed: May 31 2014.

Jovellana is a genus of flowering plants in the family Calceolariaceae. It was formerly included in Scrophulariaceae, and is still listed by some authorities as belonging there. However, recent molecular research indicates that the family Scrophulariaceae was polyphyletic,[3] meaning that it contained more than one lineage with different parents. So several of its genera - including Jovellana - have been split off and assigned to new or existing families.

History

During the Miocene epoch, the climate of the North Island of New Zealand was said to be subtropical. It started to cool down during the Late Miocene and Pliocene to a more temperate climate which was similar to that of central Chile. This may have allowed the South American elements of the Jovellana genus to establish their characteristics by long distance dispersal.[4]

The South American and New Zealand clades are believed to have split 4.1 Ma and both New Zealand and South American species are believed to have diverged from one another about 1.0 Ma.[4]
Description

Jovellana currently contains six to eight species of mainly herbaceous perennials native to Chile and New Zealand. They have simple leaves and, in summer, nodding sprays of single, two-lipped, bell-shaped flowers in shades of white, lilac and purple, heavily spotted with a contrasting colour inside.[5]

The following species are currently included:[6]

Jovellana guentheri (Chile)
Jovellana punctata (Chile)
Jovellana repens (New Zealand)
Jovellana sinclairii (New Zealand)
Jovellana violacea (Chile)

Distribution

Authorities have commented on the disjunct nature of the two populations in Chile and New Zealand. However, this is not unique. Fuchsia is another genus with species apparently randomly segregated between Central and South America, New Zealand and Tahiti.[7]
Cultivation

At least three species are cultivated as ornamental garden plants. They are frost-hardy down to −5 °C (23 °F), but in cultivation they require a sheltered position in full sun.[5] Jovellana violacea, growing to 2.5 m (8.2 ft) tall by 1 m (3.3 ft) broad, is a semi-evergreen subshrub with lilac coloured flowers, internally spotted with purple on a yellow background. It has gained the Royal Horticultural Society’s Award of Garden Merit.[8][9]

References

"Jovellana". The Plant List. Retrieved 14 March 2018.
"Jovellana". International Plant Names Index. Retrieved 14 March 2018.
Fischer, E. (2004). "Scrophulariaceae". In Kubitzki, K.; Kadereit, J.W. (eds.). Flowering Plants — Dicotyledons: Lamiales. The Families and Genera of Vascular Plants. Vol. VII. Springer. pp. 333–432. ISBN 3-540-40593-3.
Nylinder, Stephan; Swenson, Ulf; Persson, Claes; Janssens, Steven B.; Oxelman, Bengt (2012). "A dated species–tree approach to the trans–Pacific disjunction of the genus Jovellana (Calceolariaceae, Lamiales)". Taxon. 61 (2): 381–391. doi:10.1002/tax.612009. ISSN 1996-8175.
Brickell, Christopher, ed. (2008). The Royal Horticultural Society A-Z Encyclopedia of Garden Plants. United Kingdom: Dorling Kindersley. p. 587. ISBN 9781405332965.
"Jovellana Ruiz & Pav. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2021-08-25.
"Plant Profiles > Jovellana". O2 Profiles. Retrieved 14 March 2018.
"RHS Plantfinder -Jovellana violacea". Retrieved 14 March 2018.
"AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 56. Retrieved 14 March 2018.