Pacsoa at 12:35, 23 November 2024

2024-11-23T12:35:28Z

← Older revision		Revision as of 12:35, 23 November 2024
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	Some of Dr Vorster"s photographs have recently featured in articles published about		Some of Dr Vorster"s photographs have recently featured in articles published about
	''M. concinna''.		''M. concinna''.


	===Principal Characteristics: ===		===Principal Characteristics: ===
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	</li><li>reddish or creamy-yellowish callouses where the pinnae meet the rhachis		</li><li>reddish or creamy-yellowish callouses where the pinnae meet the rhachis
	</li><li>seeds with reddish coloured flesh.		</li><li>seeds with reddish coloured flesh.
			<br/>

	===Fronds: ===		===Fronds: ===
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	Coning occurs on an irregular basis,		Coning occurs on an irregular basis,


	===Hybrids: ===		===Hybrids: ===
	''M. concinna'' is geographically isolated from other cycad species and hybrids are non-existent.		''M. concinna'' is geographically isolated from other cycad species and hybrids are non-existent.

Pacsoa at 12:34, 23 November 2024

2024-11-23T12:34:46Z

← Older revision		Revision as of 12:34, 23 November 2024
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	''M. concinna'' usually grows on steep hillsides and slopes at high altitudes, ranging from 800 to 1,200 m. It normally grows under a eucalypt canopy, with a medium to dense under-storey. It can be found growing near Hanging Rock, at an elevation of approximately 900 m.		''M. concinna'' usually grows on steep hillsides and slopes at high altitudes, ranging from 800 to 1,200 m. It normally grows under a eucalypt canopy, with a medium to dense under-storey. It can be found growing near Hanging Rock, at an elevation of approximately 900 m.


	===Climatic Data: ===		===Climatic Data: ===
	As there is no Bureau of Meteorology Weather Station in the Nundle/ Hanging Rock area, climatic data for nearby Murrurundi (elevation 466 m), located about 40 km south-west elevation of Nundle, has been used for comparison purposes.		As there is no Bureau of Meteorology Weather Station in the Nundle/ Hanging Rock area, climatic data for nearby Murrurundi (elevation 466 m), located about 40 km south-west elevation of Nundle, has been used for comparison purposes.
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	was -6.5°C.		was -6.5°C.
	At Hanging Rock, frosts occur frequently, and heavy snowfalls occur occasionally, during winter.		At Hanging Rock, frosts occur frequently, and heavy snowfalls occur occasionally, during winter.
			</div>
			</div>

	===Comment: ===		===Comment: ===
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	It has a close relationship to the larger ''M. plurinervia'', (from which it was segregated)		It has a close relationship to the larger ''M. plurinervia'', (from which it was segregated)
	but is more akin in size and general characteristics to ''M. flexuosa''.		but is more akin in size and general characteristics to ''M. flexuosa''.
	~~</div>~~
	~~</div>~~

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	<p>		<p>
	[[Category:Macrozamia\|concinna]]		[[Category:Macrozamia\|concinna]]
	[[Category:Cycad\|Macrozamia_concinna]]		[[Category:Cycad\|Macrozamia_concinna]]

Pacsoa: 1 revision imported

2024-11-23T12:04:52Z

1 revision imported

← Older revision		Revision as of 12:04, 23 November 2024
(No difference)

P>Pacsoa at 22:16, 1 October 2024

2024-10-01T22:16:10Z

New page

{{PalmSpeciesHeader}}
__NOTOC__
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[[File:Macrozamia_concinna.jpg|frame|Figure 1. ''M. concinna'' in habitat.]]
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===Introduction:===
''Macrozamia concinna'' is a small (Section ''Parazamia'') cycad that is endemic to New South Wales. It has a subterranean caudex and spirally twisted rhachises.

===History:===
''M. concinna'' was described and named in 1998 by David Jones, when it was recognised as a separate and distinct species. It had previously been identified under the ''M. pauli-guilielmi'' umbrella as a sub-species (''M. pauli-guilielmi'' ssp. plurinervia). It was named after its neat and trim appearance.

===Distribution Range: ===
The distribution range for ''M. concinna'' extends from the Upper Hunter Valley north to the Nundle/Hanging Rock region.

===Habitat Conditions: ===
''M. concinna'' usually grows on steep hillsides and slopes at high altitudes, ranging from 800 to 1,200 m. It normally grows under a eucalypt canopy, with a medium to dense under-storey. It can be found growing near Hanging Rock, at an elevation of approximately 900 m.

===Climatic Data: ===
As there is no Bureau of Meteorology Weather Station in the Nundle/ Hanging Rock area, climatic data for nearby Murrurundi (elevation 466 m), located about 40 km south-west elevation of Nundle, has been used for comparison purposes.
Murrurundi has an annual average rainfall of 830 mm (spread over 87 rain days) with
the temperature exceeding 35°C on an average of 4 days during the month of January
and falling below 0°C on an average of 13 days during the month of July.
In 2006 the highest temperature recorded was 40.7°C and the lowest temperature recorded
was -6.5°C.
At Hanging Rock, frosts occur frequently, and heavy snowfalls occur occasionally, during winter.

===Comment: ===
In 1990 we escorted Dr Piet Vorster (past-President of the Cycad Society of South Africa) on a trip around New South Wales to look at various cycads. During the trip Dr Vorster photographed several ''M. concinna'' plants
(then known as ''M. pauli-guilielmi'' ssp. plurinervia) that were either partially or almost completely covered in snow (see Figures 11-14 below).
Some of Dr Vorster"s photographs have recently featured in articles published about
''M. concinna''.

===Principal Characteristics: ===
The principal characteristics of ''M. concinna'' are:

</li><li>erect, sometimes spreading, fronds, with the rhachises usually turning through multiple spiral twists.
</li><li>mid to darkish green coloured fronds
</li><li>pinnae that extend from the rhachis in a 360 degree spread
</li><li>reddish or creamy-yellowish callouses where the pinnae meet the rhachis
</li><li>seeds with reddish coloured flesh.

===Fronds: ===
Plants normally have up between 1 and 5 fronds. Plants with 1 or 2 fronds are not uncommon.

===Pinnae: ===
In similar manner to other species with multi-twisted rhachises, the pinnae on
''M. concinna'' fronds appear to extend radially from the rhachis (like the branches of a tree)
but, in fact, the rhachis itself spirally twists through a number of complete 360 degree revolutions.
The pinnae extend more or less laterally from the rhachis, with the apical pinnae extending at a more acute angle.
The number of complete twists of the rhachis can vary from a single twist to multiple twists. Occasionally, some fronds do not twist at all.

===Cones: ===
Cones on female plants are usually solitary. Male plants can have 1-2 cones.
Coning occurs on an irregular basis,

===Hybrids: ===
''M. concinna'' is geographically isolated from other cycad species and hybrids are non-existent.

===Affinities: ===
''M. concinna'' is related in varying degrees
to each of the other three New South Wales cycads with multi-twisted rhachises
(''M. fawcettii'', ''M. flexuosa'' and ''M. plurinervia'').
It has a close relationship to the larger ''M. plurinervia'', (from which it was segregated)
but is more akin in size and general characteristics to ''M. flexuosa''.
</div>
</div>

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[[File:Macrozamia_concinna02.jpg|frame|Figure 2. ''M. concinna'' in habitat.]]
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[[File:Macrozamia_concinna03.jpg|frame|Figure 3. ''M. concinna'']]
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[[File:Macrozamia_concinna04.jpg|frame|Figure 4. ''M. concinna'']]
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[[File:Macrozamia_concinna08.jpg|frame|Figure 5. ''M. concinna'']]
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[[File:Macrozamia_concinna05.jpg|frame|Figure 6. ''M. concinna'']]
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[[File:Macrozamia_concinna06.jpg|frame|Figure 7. ''M. concinna''.]]
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[[File:Macrozamia_concinna07.jpg|frame|Figure 8. ''M. concinna''.]]
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[[File:Macrozamia_concinna09.jpg|frame|Figure 9. Looking down on ''M. concinna''.]]
</div>
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[[File:Macrozamia_concinna10.jpg|frame|Figure 10. ''M. concinna''.]]
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[[File:Macrozamia_concinna11.jpg|frame|Figure 11. ''M. concinna'' in habitat.]]
</div>
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[[File:Macrozamia_concinna13.jpg|frame|Figure 12. ''M. concinna''.]]
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[[File:Macrozamia_concinna14.jpg|frame|Figure 13. ''M. concinna''.]]
</div>
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[[File:Macrozamia_concinna12.jpg|frame|Figure 14. ''M. concinna''.]]
</div>
</div>
===Contributed by: ===
Paul Kennedy and Craig Thompson (Text and Figures 1-10)<br/>
Piet Vorster (Figures 11-14)<br/>

===External Links:===
[https://www.cycadlist.org/taxon.php?Taxon_ID=377 World List],
[https://www.iucnredlist.org/details/full/41998/0 IUCN],
[https://www.jstor.org/action/doBasicSearch?Query=Macrozamia+concinna JSTOR],
[https://www.trebrown.com/plant_info.php?species=Macrozamia+concinna Trebrown]
</p>
[https://www.google.com/search?q=%22Macrozamia+concinna%22&num=10&sa=Google+Search Google],
[https://images.google.com/images?q=%22Macrozamia+concinna%22&hl=en&btnG=Google+Search GoogleImages],
[https://www.flickr.com/search/?q=Macrozamia+concinna Flickr],
<p>
[[Category:Macrozamia|concinna]]
[[Category:Cycad|Macrozamia_concinna]]

Macrozamia concinna - Revision history

Pacsoa at 12:35, 23 November 2024

Pacsoa at 12:34, 23 November 2024

Pacsoa: 1 revision imported

P>Pacsoa at 22:16, 1 October 2024