Abies fanjingshanensis
Abies fanjingshanensis is a species of the genus of fir (Abies ) in the pine family ( Pinaceae ). It is endemic in the Chinese province of Guizhou. The entire population of the species consists of only about 250 trees.
Description
Abies fanjingshanensis grows as a evergreen tree that can reach heights of growth of up to 20 meters and diameter at breast height of up to 65 centimeters. The bark is dark gray. Young twigs have a red-brown bark that becomes darker from the second or third year.
The straight and unsymmetrical needles are 1.4 to 3 cm long and 2-3 mm wide. At the bottom you will find two needle Stomatabänder. At the top of the branch needles are radially or ascending order, and they are arranged in a comb shape to the affiliate pages in two rows.
The stalked short, cylindrical cones are 5-6 inches long and about 4 inches thick. The purple-brown coloring of the unripe cones comes to maturity towards over in a dark brown color. The slightly compressed, ovoid seeds are about 8 millimeters in size. They have a broad, triangular wing, which is approximately 7 millimeters in size.
Distribution and location
The natural range of Abies fanjingshanensis is Jiangkou in the Chinese province of Guizhou. There she came only on the northern slopes of the Fanjing Shan ago at altitudes from 2100 to 2350 meters.
The species forms mixed stands with Acer flabellatum, Enkianthus chinensis, the Japanese flowering cherry (Prunus serrulata ), Rhododendron hypoglaucum as well as with the Taiwan Hemlock ( Tsuga chinensis).
System
Abies fanjingshanensis is allocated within the genus of fir (Abies ) of section Pseudopicea and the subsection Delavayianae. The first description by W. L. Huang, Tu et Fang in Acta Phytotax. Sin. 22 took place in 1984. Species is closely related to Farges Fir ( Abies fargesii ) related and was once considered a variety of this kind.
Threats and conservation
The IUCN Red List is Abies fanjingshanensis as " critically endangered " out. It is noted, however, that a re-examination of risk is necessary. In the wild, there are only about 250 trees, which grow in a hard to reach area.
Swell
- Christopher J. Earle: Abies fanjingshanensis. In: The Gymnosperm Database. Retrieved 6 January 2011 (English).
- Liguo Fu, Nan Li, Thomas S. Elias, Robert R. Mill: Abies fanjingshanensis. In: Wu Zheng -yi, Peter H. Raven (eds.): Flora of China. Volume 4: Cycadaceae through Fagaceae, Science Press / Missouri Botanical Garden Press, Beijing / St. Louis 1999, ISBN 0-915279-70-3, page 46