Biology:Lomatia

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Short description: Genus of flowering plants

Lomatia
Lomatia silaifolia email.jpg
L. silaifolia
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Subfamily: Grevilleoideae
Tribe: Embothrieae
Subtribe: Lomatiinae
Genus: Lomatia
R.Br.
Species

See text

Synonyms

Tricondylus Salisb. ex Knight

Lomatia is a genus of 12 species of evergreen flowering plants in the protea family Proteaceae. Within the family, they have been placed, alone, in their own subtribe, Lomatiinae according to Johnson & Briggs 1975 classification of the family and subsequently in Flora of Australia (1995).

The genus has a Pacific Rim distribution, with members native to eastern Australia and southern South America, forming a part of the Antarctic flora. The species range from prostrate shrubs less than 0.5 m (1 ft 8 in) tall to small trees up to 12 m (39 ft) tall.

Genetic analysis using microsatellite markers showed that species found close together geographically are most closely related to each other. Lomatia dentata, then L. hirsuta and L. ferruginea all diverged successively from the lineage that gave rise to Australian species. The three Tasmanian species (with L. tasmanica sister to the other two species) are sister to the mainland Australian group. L. tasmanica is one of the most endangered species, due to its inability to reproduce sexually. On mainland Australia, the far northern L. fraxinifolia is sister to the other five species, all of which are found in southeastern Australia. L. fraseri and L. myricoides are sister taxa, with L. ilicifolia sister to them, while L. arborescens and L. silaifolia are each other's closest relatives.[1] Strong genomic filters may facilitate continued gene flow between species without the danger of assimilation.

Species

References

  1. Milner, Melita L.; McIntosh, Emma J.; Crisp, Michael D.; Weston, Peter H.; Rossetto, Maurizio (2013). "Microsatellite variation for phylogenetic, phylogeographic and population-genetic studies in Lomatia (Proteaceae)". Australian Systematic Botany 26 (3): 186–95. doi:10.1071/SB13002. 
  2. 2.0 2.1 2.2 Gonzalez, Cynthia C.; Gandolfo Maria Alejandra; Zamaloa, Maria C.; Cúneo, Nestor R.; Wilf, Peter; Johnson, Kirk (2007). "Revision of the Proteaceae Macrofossil Record from Patagonia, Argentina". The Botanical Review 73 (3): 235–66. doi:10.1663/0006-8101(2007)73[235:rotpmr2.0.co;2]. http://www3.geosc.psu.edu/~pdw3/2007_Gonzalez_et_al_Bot_Rev_Proteaceae.pdf. 
  3. 3.0 3.1 H. Wapstra, A. Wapstra, M. Wapstra, L. Gilfedder,The Little Book of Common Names for Tasmanian Plants, DPIPWE
  • Wilson, AJG; Hewson, HJ; Mowatt, J (1995). "Lomatia". in McCarthy, Patrick. Flora of Australia: Volume 16: Eleagnaceae, Proteaceae 1. CSIRO Publishing / Australian Biological Resources Study. pp. 374–382. ISBN 978-0-643-05693-0. 
  • Hoot, SB; Douglas, AW (1998). "Phylogeny of the Proteaceae based on atpB and atpB-rbcL spacer region sequences". Australian Systematic Botany 11 (4): 301–320. doi:10.1071/SB98027. 
  • Johnson, LAS; Briggs, BG (1975). "On the Proteaceae: the evolution and classification of a southern family". Botanical Journal of the Linnean Society 70 (2): 83–182. doi:10.1111/j.1095-8339.1975.tb01644.x. 

External links

Wikidata ☰ Q2710975 entry