Cycas brunnea: Difference between revisions
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{{Short description|Species of cycad}} |
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{{Taxobox |
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{{Speciesbox |
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| color = lightgreen |
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| image = |
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| status = NT |
| status = NT |
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| status_system = IUCN3.1 |
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| trend = stable |
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| genus = Cycas |
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| divisio = [[Cycad]]ophyta |
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| classis = [[Cycad]]opsida |
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| ordo = [[Cycad]]ales |
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| familia = [[Cycas|Cycadaceae]] |
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| genus = ''[[Cycas]]'' |
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| species = '''''C. brunnea''''' |
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| binomial = ''Cycas brunnea'' |
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}} |
}} |
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'''''Cycas brunnea''''' is a species of [[cycad]] in the genus ''[[Cycas]]'', native to northern [[Australia]] in northwest [[Queensland]] and northeast [[Northern Territory]] in a small area straddling the border of the two regions. It occurs on exposed sites in savanna and creek valleys on [[sandstone]] and [[limestone]] derived soils, with moderate seasonal rainfall. |
'''''Cycas brunnea''''' is a species of [[cycad]] in the genus ''[[Cycas]]'', native to northern [[Australia]] in northwest [[Queensland]] and northeast [[Northern Territory]] in a small area straddling the border of the two regions. It occurs on exposed sites in savanna and creek valleys on [[sandstone]] and [[limestone]] derived soils, with moderate seasonal rainfall. |
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The stems grow to |
The stems grow to 2–5 m tall, with numerous [[leaf|leaves]] in the crown. The leaves are 1.2-1.7 m long, [[glabrousness (botany)|glabrous]] with age, pinnate, with 160-240 leaflets, the leaflets 17–27 cm long and 6–7.5 mm wide. The [[Petiole (botany)|petiole]]s are covered in brown tomentum and armed with sharp spines. |
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The female [[strobilus|cones]] are open, with [[sporophyll]]s |
The female [[strobilus|cones]] are open, with [[sporophyll]]s 28–32 cm long. Orange tomentose covering cone, with serrations along margins of the [[Leaf|lamina]]. The [[sarcotesta]] is orange and glaucous, the [[sclerotesta]] ovoid and flattened. The male cones are solitary and long ovoid, 21 cm long and 13 cm diameter, brown tomentose, and with an upturned apical spine. |
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It was first described in 1992, and is similar in appearance to ''[[Cycas angulata]]''. It is considered near-threatened due to its restricted range, though it occurs in some protected areas including [[Boodjamulla National Park]]. It is named after the Greek word ''brunneus'' (brown), as the emergent leaves are brown [[tomentose]]. |
It was first described in 1992, and is similar in appearance to ''[[Cycas angulata]]''. It is considered near-threatened due to its restricted range, though it occurs in some protected areas including [[Boodjamulla National Park]]. It is named after the Greek word ''brunneus'' (brown), as the emergent leaves are brown [[tomentose]]. |
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==References== |
==References== |
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*[http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/cycadpg?taxname=Cycas+brunnea Cycad Pages: ''Cycas brunnea''] |
*[http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/cycadpg?taxname=Cycas+brunnea Cycad Pages: ''Cycas brunnea''] {{Webarchive|url=https://web.archive.org/web/20130510015121/http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/cycadpg?taxname=Cycas+brunnea |date=2013-05-10 }} |
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*[http://www.iucnredlist.org/search/details.php/41971/all IUCN Redlist: ''Cycas brunnea''] |
*[http://www.iucnredlist.org/search/details.php/41971/all IUCN Redlist: ''Cycas brunnea''] |
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{{Taxonbar|from=Q5197923}} |
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[[Category:Flora of the Northern Territory]] |
[[Category:Flora of the Northern Territory]] |
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[[Category:Flora of Queensland]] |
[[Category:Flora of Queensland]] |
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[[Category:Cycadophyta of Australia]] |
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[[Category:Endemic flora of Australia]] |
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[[Category:Near threatened flora of Australia]] |
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[[Category:Near threatened biota of Queensland]] |
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[[Category:Nature Conservation Act rare biota]] |
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[[Category:Rare flora of Australia]] |
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Latest revision as of 12:15, 1 January 2024
| Cycas brunnea | |
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Gymnospermae |
| Division: | Cycadophyta |
| Class: | Cycadopsida |
| Order: | Cycadales |
| Family: | Cycadaceae |
| Genus: | Cycas |
| Species: | C. brunnea
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| Binomial name | |
| Cycas brunnea K.D.Hill
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Cycas brunnea is a species of cycad in the genus Cycas, native to northern Australia in northwest Queensland and northeast Northern Territory in a small area straddling the border of the two regions. It occurs on exposed sites in savanna and creek valleys on sandstone and limestone derived soils, with moderate seasonal rainfall.
The stems grow to 2–5 m tall, with numerous leaves in the crown. The leaves are 1.2-1.7 m long, glabrous with age, pinnate, with 160-240 leaflets, the leaflets 17–27 cm long and 6–7.5 mm wide. The petioles are covered in brown tomentum and armed with sharp spines.
The female cones are open, with sporophylls 28–32 cm long. Orange tomentose covering cone, with serrations along margins of the lamina. The sarcotesta is orange and glaucous, the sclerotesta ovoid and flattened. The male cones are solitary and long ovoid, 21 cm long and 13 cm diameter, brown tomentose, and with an upturned apical spine.
It was first described in 1992, and is similar in appearance to Cycas angulata. It is considered near-threatened due to its restricted range, though it occurs in some protected areas including Boodjamulla National Park. It is named after the Greek word brunneus (brown), as the emergent leaves are brown tomentose.
References[edit]
- Cycad Pages: Cycas brunnea Archived 2013-05-10 at the Wayback Machine
- IUCN Redlist: Cycas brunnea