Biology:Typhonium praetermissum
| Typhonium praetermissum | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Alismatales |
| Family: | Araceae |
| Genus: | Typhonium |
| Species: | T. praetermissum
|
| Binomial name | |
| Typhonium praetermissum A.Hay, 1997
[1]
| |
| Synonyms[2] | |
|
Lazarum praetermissum | |
Typhonium praetermissum is a species of plant in the arum family that is endemic to the Northern Territory of Australia .[3] In 2022, Hay and others resurrected the genus, Lazarum, and renamed the species as Lazarum praetermissum[4] (a name accepted by Plants of the World Online).[5]
Description
The species is a geophytic, perennial herb, which resprouts annually from a corm. The leaves vary from oval in shape to deeply divided, up to 4.5 cm long, on a stalk up to 5.5 cm long. The flower is enclosed in a brown and maroon spathe 4 cm long. The small fruits appear in November and December.[3]
Distribution and habitat
The species occurs in the tropical Top End of the Northern Territory, with a range limited to the vicinity of Darwin and the Litchfield shire including Virginina, Karama, Noonamah, the Palmerston escarpment and Mandorah.[6] Many sub-populations are under increasing pressure from development and weed incursion.[7]
It is found mainly in open woodland habitats with red-brown clay or lateritic soils, [3] typically in Eucalyptus miniata woodland on well drained soils, and on the margins of plateaus.[7]
Conservation status
NT Flora lists the species as "vulnerable".[8]
References
- ↑ Hay, A (1997). "Two new species and a new combination in Australian Typhonium (Araceae Tribe Areae)". Edinburgh Journal of Botany 54 (3): 329–336. doi:10.1017/S0960428600004157.
- ↑ "Typhonium praetermissum A.Hay | Plants of the World Online | Kew Science" (in en). http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:997749-1.
- ↑ 3.0 3.1 3.2 John Westaway & Ian Cowie (2012). "Typhonium praetermissum". Northern Territory Government. https://nt.gov.au/__data/assets/pdf_file/0017/208502/typhonium-praetermissum.pdf.
- ↑ Hay, A., Barrett, M. D., Hetterscheid, W. L. A., & E2, R. N. B. (2022). "New combinations in resurrected Lazarum A. Hay (Araceae–Areae)". Aroideana 45: 133-137. https://www.researchgate.net/profile/Alistair-Hay/publication/366123777_New_combinations_in_resurrected_Lazarum_AHay_Araceae-Areae/links/63926edbe42faa7e75aa7e52/New-combinations-in-resurrected-Lazarum-AHay-Araceae-Areae.pdf.
- ↑ "Lazarum praetermissum (A.Hay) M.D.Barrett, A.Hay & Hett. | Plants of the World Online | Kew Science" (in en). http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77310080-1.
- ↑ Holmes, Jarrad; Bisa, Deborah; Hill, Audrey; Crase, Beth (May 2005). A Guide to Threatened, Near Threatened and Data Deficient Plants in the Litchfield Shire of the Northern Territory. Ultimo, Australia: WWF-Australia. pp. 6. ISBN 1 87594185 1.
- ↑ 7.0 7.1 "Threatened Species of the Greater Darwin Region - Typhonium praetermissum". July 2016. https://nt.gov.au/__data/assets/pdf_file/0019/405541/typhonium-praetermissum-mapped-distribution.pdf.
- ↑ "NT Flora factsheet: Typhonium praetermissum". http://eflora.nt.gov.au/factsheet?id=20210.
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