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Libertia

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"Nematostigma" redirects here. For the defunct nettle genus, see Gironniera.

Libertia
Libertia chilensis
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Iridaceae
Subfamily: Iridoideae
Tribe: Sisyrinchieae
Genus: Libertia
Spreng. 1824, conserved name not Dumort. 1822 (syn of Hosta) nor Lej. 1825 (syn of Bromus)
Type species
Libertia ixioides
Synonyms[1]
  • Tekel Adans.
  • Tekelia Scop.
  • Renealmia R.Br. 1810 not L. 1753 nor L.f. 1782
  • Nematostigma A.Dietr.
  • Orthrosanthus Sweet
  • Taumastos Raf.
  • Choeradodia Herb.
  • Ezeria Raf.
Libertia peregrinans

Libertia is a genus of monocotyledonous plants in the family Iridaceae, first described as a genus in 1824.[2] It is native to South America, Australia, New Guinea, and New Zealand. Eight species are endemic to New Zealand.[1][3][4]

Libertia is made up of herbaceous or evergreen perennials growing from short rhizomes,[2] with simple, linear or narrowly lanceolate basal leaves which are often green but may be red, orange, or yellow under direct sunlight.[5] The showy white or blue trimerous flowers are open in spring and are followed by capsules opening by three valves which contain the numerous seeds.[6]

The genus was named after the Belgian botanist Marie-Anne Libert[7] (1782–1865) (also referred to as Anne-Marie Libert).[8]

The species Libertia chilensis has gained the Royal Horticultural Society's Award of Garden Merit.[9][10]

Species[1]
Selected formerly included[1]

Numerous names have been coined using the name Libertia, referring to species that are now regarded as better suited to other genera (Bromus Cardiocrinum Hosta Orthrosanthus).

Cytology

[edit]

Libertia has a high rate of polyploidy, with 9/11 of assessed species confirmed as polyploid and only 3 confirmed as diploid.[3] This is not unprecedented, with polyploidy being a common feature in the tribe Sisyrinchieae.[13] The uniform base number of x=19[13] is, however, defining within the tribe. This base number is not found elsewhere in the tribe and only Diplarrhena and Solenomelus have uniform base numbers intragenerically.[13]

All New Zealand endemic species of Libertia are diploid, hexaploid or dodecaploid,[14][15][16][17][3] while these levels of ploidy have not been found outside New Zealand. Polyploidy is more prevalent in New Zealand species across all botanical taxa[18][19] and this has been attributed as a relic of glacial refugia during glacial maximums.[20]

Distribution Species Ploidy Level Chromosomal Count Contention
South American L. chilensis 4x (6x) 76[15] (72, 114)[21] Due to numerous issues with this study, authors found the sample, identified as Libertia ixioides (New Zealand endemic) but collected from Chile, to have 72 chromosomes present.[22] This was most likely a misidentification of Libertia chilensis, with a further error in counting.

Samples from the Juan Fernandez Islands were found to have 114 chromosomes, in comparison to the 76 found on the mainland.[21]

South American L. colombiana No data available. No data available.
New Zealand endemic L. cranwelliae 12x 228[3]
New Zealand endemic L. edgariae 6x 114[3]
South American L. falcata No data available. No data available.
New Zealand endemic L. flaccidifolia 12x 228[14]
New Zealand endemic L. grandiflora 6x 114[17] (228, 230)[14] The 228/230 chromosome specimen was likely Libertia flaccidifolia,[17] before the 2009 naming by Blanchon and Weaver.[14]
South American L. insignis No data available. No data available.
New Zealand endemic L. ixioides 12x 228[17] (220-230, 230)[15] Due to the difficulty in counting chromosomes, authors found between 220 and 230 chromosomes in different counts, with 228 being the average count.[15]
New Zealand endemic L. micrantha 2x 38[15]
New Zealand endemic L. mooreae 6x 114[3]
Australian L. paniculata 4x 76[15]
New Zealand endemic L. peregrinans 6x 114[16]
Australasia L. pulchella 2x 38[16]
South American L. sessiliflora 2x 38[15]
South American L. tricocca No data available. No data available.
South American L. umbellata No data available. No data available.

References

[edit]
  1. ^ a b c d Kew World Checklist of Selected Plant Families
  2. ^ a b Sprengel, Curt Polycarp Joachim 1824. Systema Vegetabilium, editio decima sexta 1: 127 in Latin
  3. ^ a b c d e f g h i Blanchon, D.J.; et al. (2002). "A taxonomic revision of Libertia (Iridaceae) in New Zealand". New Zealand Journal of Botany. 40 (3): 437–456. Bibcode:2002NZJB...40..437B. doi:10.1080/0028825x.2002.9512805. S2CID 83634447.
  4. ^ a b "Census of vascular plants of Papua New Guinea". Retrieved 2010-01-01.
  5. ^ "Stephen Butler | IGPS Blog". igpsblogs.wordpress.com. Retrieved 2017-03-12.
  6. ^ Goldblatt; Henrich; Keating, Peter; James; Richard (1989). "Seed morphology of Sisyrinchium (Iridaceae-Sisyrinchieae) and its allies". Annals of the Missouri Botanical Garden. 76 (4): 1109–1117. doi:10.2307/2399695. JSTOR 2399695.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  7. ^ Quattrocchi, Umberto (2006). CRC World Dictionary of Grasses, Common Names, Scientific Names, Eponyms, Synonyms, and Etymology. Vol. 1. Taylor and Francis. p. 124. ISBN 9781420003222.
  8. ^ Manning, John; Goldblatt, Peter (2008). The Iris Family: Natural History & Classification. Portland, Oregon: Timber Press. pp. 215–16. ISBN 978-0-88192-897-6.
  9. ^ "RHS Plantfinder - Libertia chilensis". Retrieved 22 March 2018.
  10. ^ "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 60. Retrieved 14 March 2018.
  11. ^ "Libertia paniculata". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  12. ^ "Libertia pulchella". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  13. ^ a b c Goldblatt; Takei, P.; M. (1997). "Chromosome cytology of Iridaceae-patterns of variation, determination of ancestral base numbers, and modes of karyotype change". Annals of the Missouri Botanical Garden. 85 (2): 285–304. doi:10.2307/2400005. JSTOR 2400005.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  14. ^ a b c d Blanchon; Weaver, D.J.; J.S. (2009). "Libertia flaccidifolia (Iridaceae), a new species from Mt. Tamahunga, Northland, New Zealand". New Zealand Journal of Botany. 47 (3): 317–324. Bibcode:2009NZJB...47..317B. doi:10.1080/00288250909509812. S2CID 86060799.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  15. ^ a b c d e f g Blanchon, D.J. (2000). "Chromosome numbers in the genus Libertia". New Zealand Journal of Botany. 38 (2): 245–250. doi:10.1080/0028825x.2000.9512681.
  16. ^ a b c Hair; Beuzenberg; Pearson, J.B.; E.J.; B. (1967). "Contributions to a chromosome atlas of the New Zealand flora - 9. Miscellaneous families". New Zealand Journal of Botany. 5: 185–196. doi:10.1080/0028825x.1967.10428739.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  17. ^ a b c d Moore, L.B. (1967). "The New Zealand species of Libertia (Iridaceae)". New Zealand Journal of Botany. 5 (2): 255–275. Bibcode:1967NZJB....5..255M. doi:10.1080/0028825x.1967.10428745.
  18. ^ Rendle; Murray, H.; B.G. (1989). "Chromosome relationships and breeding barriers in New Zealand species of Ranunculus". New Zealand Journal of Botany. 27 (3): 437–444. Bibcode:1989NZJB...27..437R. doi:10.1080/0028825x.1989.10414124.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  19. ^ Murray; Cameron; Standring, B.G.; E.K.; L.S. (1992). "Chromosome numbers, karyotypes, and nuclear DNA variation in Pratia Gaudin (Lobeliaceae)". New Zealand Journal of Botany. 30 (2): 181–187. Bibcode:1992NZJB...30..181M. doi:10.1080/0028825x.1992.10412897.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  20. ^ McQueen, D.R. (1992). "Disjunction of tree species in mountain forests, southern North Island, New Zealand: a review of paleobotanical evidence". Pacific Science. 46 (2): 269–275.
  21. ^ a b Sanders; Stuessy; Rodriguez, R.W.; T.F.; R. (1983). "Chromosome numbers from the flora of the Juan Fernandez Islands". American Journal of Botany. 70 (6): 799–810. doi:10.2307/2442929. JSTOR 2442929.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  22. ^ Kenton; Heywood, A.; C.A. (1984). "Cytological studies in South American Iridaceae". Plant Systematics and Evolution. 146 (1–2): 87–104. Bibcode:1984PSyEv.146...87K. doi:10.1007/bf00984056. S2CID 39542853.{{cite journal}}: CS1 maint: multiple names: authors list (link)
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