Biology:Libertia

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Short description: Genus of flowering plants

Libertia
Libertia grandiflora.JPG
Libertia chilensis
Scientific classification e
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
(Forster f.) Spreng.
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]
  • Libertia chilensis (Molina) Gunckel - central + southern Chile, southern Argentina, Juan Fernández Islands
  • Libertia colombiana R.C.Foster - Colombia, Ecuador, Peru, Bolivia
  • Libertia cranwelliae Blanchon, B.G.Murray & Braggins - North Island of New Zealand[3]
  • Libertia edgariae Blanchon, B.G.Murray & Braggins - North Island of New Zealand[3]
  • Libertia falcata Ravenna - Los Lagos region of Chile
  • Libertia flaccidifolia Blanchon & J.S.Weaver - North Island of New Zealand
  • Libertia grandiflora (R.Br.) Sweet - North + South Islands of New Zealand
  • Libertia insignis Ravenna - Los Lagos region of Chile
  • Libertia ixioides (G.Forst.) Spreng. - North + South Islands of New Zealand
  • Libertia micrantha A.Cunn. - North + South Islands of New Zealand
  • Libertia mooreae Blanchon, B.G.Murray & Braggins - North + South Islands of New Zealand[3]
  • Libertia paniculata (R.Br.) Spreng. - eastern Australia[11] - Branching Grass Flag
  • Libertia peregrinans Cockayne & Allan - North + South + Chatham Islands of New Zealand
  • Libertia pulchella (R.Br.) Spreng. - New South Wales, Victoria, Tasmania, North + South Islands of New Zealand, New Guinea[4][12]
  • Libertia sessiliflora (Poepp.) Skottsb. - central Chile
  • Libertia tricocca Phil. - central + southern Chile
  • Libertia umbellata Ravenna - Los Lagos region of Chile
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

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

  1. ↑ 1.0 1.1 1.2 1.3 Kew World Checklist of Selected Plant Families
  2. ↑ 2.0 2.1 Sprengel, Curt Polycarp Joachim 1824. Systema Vegetabilium, editio decima sexta 1: 127 in Latin
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 Blanchon, D.J. (2002). "A taxonomic revision of Libertia (Iridaceae) in New Zealand". New Zealand Journal of Botany 40 (3): 437–456. doi:10.1080/0028825x.2002.9512805. 
  4. ↑ 4.0 4.1 "Census of vascular plants of Papua New Guinea". http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/PNGcensus.pl?fam=&gen=Libertia&sp=&infr=&group=. 
  5. ↑ "Stephen Butler | IGPS Blog" (in en). https://igpsblogs.wordpress.com/tag/stephen-butler/. 
  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. 
  7. ↑ Quattrocchi, Umberto (2006). CRC World Dictionary of Grasses, Common Names, Scientific Names, Eponyms, Synonyms, and Etymology. 1. Taylor and Francis. pp. 124. ISBN 9781420003222. https://books.google.com/books?id=8ieqQs7hIREC&q=libertia&pg=PA1224. 
  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". https://www.rhs.org.uk/Plants/23471/i-Libertia-chilensis-i/Details. 
  10. ↑ "AGM Plants - Ornamental". Royal Horticultural Society. July 2017. p. 60. https://www.rhs.org.uk/plants/pdfs/agm-lists/agm-ornamentals.pdf. 
  11. ↑ "Libertia paniculata". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government. http://www.anbg.gov.au/cgi-bin/apni?taxon_id=37162. 
  12. ↑ "Libertia pulchella". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government. http://www.anbg.gov.au/cgi-bin/apni?taxon_id=37180. 
  13. ↑ 13.0 13.1 13.2 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. https://www.biodiversitylibrary.org/part/26213. 
  14. ↑ 14.0 14.1 14.2 14.3 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. doi:10.1080/00288250909509812. 
  15. ↑ 15.0 15.1 15.2 15.3 15.4 15.5 15.6 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. ↑ 16.0 16.1 16.2 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. 
  17. ↑ 17.0 17.1 17.2 17.3 Moore, L.B. (1967). "The New Zealand species of Libertia (Iridaceae)". New Zealand Journal of Botany 5 (2): 255–275. 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. doi:10.1080/0028825x.1989.10414124. 
  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. doi:10.1080/0028825x.1992.10412897. 
  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. ↑ 21.0 21.1 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. 
  22. ↑ Kenton; Heywood, A.; C.A. (1984). "Cytological studies in South American Iridaceae". Plant Systematics and Evolution 146 (1–2): 87–104. doi:10.1007/bf00984056. 


Wikidata ☰ Q2700376 entry



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