Marie's fir
| Marie's fir | ||||||||||||
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Marie's fir ( Abies mariesii ) |
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| Abies mariesii | ||||||||||||
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The Maries fir ( Abies mariesii ) is a species of the pine family (Pinaceae). It is endemic to the Japanese main island of Honshū .
description
The Maries fir grows as evergreen coniferous tree reaching to 2 meters, the plant height 24 to 26 meters and a trunk circumference of up can. The species also grows as a 3 to 5 meter high shrub at the tree line . The straight trunk ends in an oval or flattened crown . The light gray or gray-blue bark is smooth and has bluish-red speckles. In older trees it takes on an almost white color. Young twigs are hairy and have dark brown to reddish-gray bark .
The spherical buds are red-brown to gray-brown in color and slightly resinous. The needles are 0.8 to 2 inches long and 2 to 2.5 millimeters wide. They are arranged in a spiral and densely packed at the top of the branches and overlap. The tip of the needle is either rounded or split. While the top of the needle is light green in color, the resinous underside of the needle has a blue-green-yellowish to whitish color. There are seven rows of stomas on the underside of the needle .
The Maries fir tree is single-sexed ( monoecious ). It blooms in June. The approximately 15 millimeter long, cylindrical male cones are dark reddish to yellowish red in color. The elliptical cones are flattened at the top and are 7 to 15 inches long and 4 to 5 inches thick. When they ripen from September to October, they are dark blue to black-red-brown in color. The obovate seeds are between 6 and 9 millimeters long and are yellowish-red in color. Each seed has a 8 to 10 millimeter wing that is pink-red on the top and light brown on the underside.
The number of chromosomes is 2n = 24.
Distribution and location
The Maries fir is only found in northern and central Honshu . You can find them there at altitudes of 100 to 2900 meters.
In central Honshū, the Maries fir occasionally forms mixed stands with Veitchs fir ( Abies veitchii ).
Systematics
The Maries fir is assigned to the Amabilis section within the genus of firs ( Abies ) . It was first described in 1873 by Maxwell Tylden Masters in Gard. Chron., Ser. 2, Volume 12: Page 789. A synonym for the species is Pinus mariesii (Mast.) Voss .
Hazard and protection
The Maries fir is in the red list of the IUCN out "not at risk". It is pointed out, however, that a new check of the risk is necessary.
swell
- Christopher J. Earle: Abies mariesii. In: The Gymnosperm Database. Retrieved December 27, 2010 (English).
- Alan Mitchell: The forest and park trees of Europe: An identification book for dendrologists and nature lovers . Paul Parey, Hamburg / Berlin 1975, ISBN 3-490-05918-2 .
Individual evidence
- ↑ a b c d T. Yamazaki: Abies mariesii. (No longer available online.) In: Flora of Japan. Archived from the original on July 22, 2012 ; accessed on December 27, 2010 (English, search mask). Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ a b c d Christopher J. Earle: Abies mariesii. In: The Gymnosperm Database. Retrieved December 27, 2010 (English).
- ^ Tropicos. [1]
- ↑ Abies mariesii. In: Germplasm Resources Information Network - (GRIN). USDA, accessed December 27, 2010 .
- ↑ Abies mariesii in the endangered Red List species the IUCN 2010. Posted by: Conifer Specialist Group, 1998. Retrieved on December 25 of 2010.
