Podocarpus totara
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Podocarpus totara |
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| G.Benn. ex D.Don |
Podocarpus totara is a species of stone slab ( Podocarpus ) in the stone slab family(Podocarpaceae). It isnativeto New Zealand and is called Totara there.
description
Vegetative characteristics
Podocarpus totara is a slow-growing, medium-sized to large, evergreen tree that can grow to heights of 20 to 25 meters, in exceptional cases even 50 meters and above. Thus it reaches the highest stature heights among all species of the stone slab family (Podocarpaceae). It is known for its longevity and large trunk size. The bark peels off in paper-like strips and has a purple to golden brown hue.
The approximately 2 centimeters long, dull green, flat leaves are stiff and leathery.
Generative characteristics
The seed cone consists of two to four scales fused to form a fleshy, berry-like, red aril (seed coat). The seed cone contains only one or two round seeds.
Largest specimens
A well-known specimen called "Pouakani" has reached a height of 42.7 meters with a diameter of 3.88 meters at chest height ; it stands near Mangapeni in King Country, Southern Waikato . Its wood volume is estimated at 203.7 m³. The information sign attached to the tree itself, however, shows incorrect data for height, trunk diameter and wood volume. The coordinates of the location are 38.46716 ° S and 175.61928 ° E. An even higher tree with 51 meters is in the Pureora Forest Park .
Similar Art
A closely related species of Podocarpus totara is Podocarpus nubigenus Lindl. from South America, which is difficult to distinguish. The best distinguishing feature is the gray-green leaves of Podocarpus totara compared to the slightly lighter green needles of Podocarpus nubigenus .
distribution
Podocarpus totara is found in New Zealand on the North Island and the northeastern South Island . It thrives in the forests of the lowlands, the mountainous region and in the lower part of the subalpine vegetation zone at altitudes of up to 480 meters, in exceptional cases up to 600 meters.
Systematics
The first description of Podocarpus totara was in 1828 George Bennett , who had taken the name from David Don , in Aylmer Bourke Lambert : A description of the genus Pinus. , 2nd edition, page 184. Synonyms for Podocarpus totara G.Benn. ex D.Don are: Podocarpus totara D.Don ex Hook. , Nageia totara (G.Benn. Ex D.Don) F.Muell.
According to some authors, there are two varieties of Podocarpus totara :
- Podocarpus totara G.Benn. ex D.Don var. totara
- Podocarpus totara var. Waihoensis Wardle
use
The wood is hard, has a straight grain and is very resistant to rot. That is why it was often used for fence posts, as a substructure for floors and railway sleepers. It was also the main wood used in Māori carving .
swell
- Podocarpus totara var. Totara. New Zealand Plant Conservation Network, January 18, 2010, accessed May 16, 2019 .
- Podocarpus totara var. Waihoensis. New Zealand Plant Conservation Network, January 18, 2010, accessed May 16, 2019 .
- Christopher J. Earle: Podocarpus totara. In: The Gymnosperm Database. February 28, 2019, accessed on May 16, 2019 .
Individual evidence
- ↑ a b c d e f Christopher J. Earle: Podocarpus totara. In: The Gymnosperm Database. February 28, 2019, accessed on May 16, 2019 .
- ↑ Podocarpus totara in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved May 16, 2019.
- ↑ Podocarpus totara at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed on May 16, 2019.
Web links
- Podocarpus totara in the Red List of Threatened Species of the IUCN 2013.1. Posted by: A. Farjon, 2011. Retrieved September 15, 2013.