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''Carmichaelia petriei'' is a species of
''Carmichaelia petriei'' was first described by Thomas Kirk in his book ''The students' flora of New Zealand and the outlying islands'' published in 1899. He named the plant in honour of
''Carmichaelia petriei'' is an upright but stout looking shrub, sparingly branched and growing up to 2.5 meters high and 2 meters wide. Its branchlets are coloured green, yellow green or bronze green and are leafless. Its flowers are coloured violet, purple and white and can be seen from November to January. The shrub produces seed from January to May. It can be distinguished from other ''Carmichaelia'' species by the appearance of its seed pods which droop as they ripen and seeds that drop off when they reach maturity.
Observations and images by citizen scientists logged in Naturewatch NZ
{{Taxonbar, from=Q15528103 Plants described in 1899 Endemic flora of New Zealand Flora of the South Island petriei Taxa named by Thomas Kirk
New Zealand
New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...
broom belong to the genus ''Carmichaelia
''Carmichaelia'' (New Zealand brooms) is a genus of 24 plant species belonging to Fabaceae, the legume family. All but one species are native to New Zealand; the exception, ''Carmichaelia exsul'', is native to Lord Howe Island and presumably disp ...
''. It is endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...
to New Zealand. ''C. petrieis'' is possibly a host
A host is a person responsible for guests at an event or for providing hospitality during it.
Host may also refer to:
Places
* Host, Pennsylvania, a village in Berks County
People
*Jim Host (born 1937), American businessman
* Michel Host ...
plant for the critically endangered fungus weevil ''Cerius otagensis
''Cerius otagensis'' is a species of flightless fungus weevil that is endemic to New Zealand. It has been found in only two locations in the Central Otago region.
Discovery
Only four female specimens have ever been collected and the male of the ...
''.
Taxonomy
''Carmichaelia petriei'' was first described by Thomas Kirk in his book ''The students' flora of New Zealand and the outlying islands'' published in 1899. He named the plant in honour of Donald Petrie
Donald Mark Petrie (born April 2, 1954) is an American film director and actor.
Life and career
Petrie was born in New York City, New York, the son of Dorothea (née Grundy), a television producer, actor, and novelist, and Daniel Petrie, a dir ...
, the discoverer of the species. The isolectotype
In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to anchor or centralizes the ...
specimen of ''C. petriei'' can be found at the Auckland War Memorial Museum
The Auckland War Memorial Museum Tāmaki Paenga Hira (or simply the Auckland Museum) is one of New Zealand's most important museums and war memorials. Its collections concentrate on New Zealand history (and especially the history of the Aucklan ...
.
Description
''Carmichaelia petriei'' is an upright but stout looking shrub, sparingly branched and growing up to 2.5 meters high and 2 meters wide. Its branchlets are coloured green, yellow green or bronze green and are leafless. Its flowers are coloured violet, purple and white and can be seen from November to January. The shrub produces seed from January to May. It can be distinguished from other ''Carmichaelia'' species by the appearance of its seed pods which droop as they ripen and seeds that drop off when they reach maturity.
Distribution
''Carmichaelia petriei'' is endemic to New Zealand and can be found in theSouth Island
The South Island, also officially named , is the larger of the two major islands of New Zealand in surface area, the other being the smaller but more populous North Island. It is bordered to the north by Cook Strait, to the west by the Tasman ...
, as far north as the upper part of the Waitaki River Valley in Canterbury, as well as in the MacKenzie Basin, Otago and Southland including Stewart Island.
Habitat
This species grows in scrub and tussock grassland among rocks inmontane
Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial f ...
, lowland or coastal sites. It can be found in river gorges or on terraces, cliffs and in the margins of forests.
Ecology
One of only four specimens of the critically endangered fungus weevil ''Cerius otagensis
''Cerius otagensis'' is a species of flightless fungus weevil that is endemic to New Zealand. It has been found in only two locations in the Central Otago region.
Discovery
Only four female specimens have ever been collected and the male of the ...
'' was collected from the beating of a ''C. petriei'' plant. That this weevil was collected from ''C. petriei'' implies that this species of ''Carmichaelia'' may be a host plant for that endangered insect.
Conservation status
''Carmichaelia petriei'' had a large stable population and was therefore classified by the Department of Conservation (DOC) as being "Not Threatened" in 2013. but in 2017, it was reclassified as "At Risk - Declining".de Lange, P.J. ''et al.''References
External links
* *Observations and images by citizen scientists logged in Naturewatch NZ
{{Taxonbar, from=Q15528103 Plants described in 1899 Endemic flora of New Zealand Flora of the South Island petriei Taxa named by Thomas Kirk