Cephalotaxus lanceolata
Cephalotaxus lanceolata is a species of the family head Yews ( Cephalotaxaceae ). It is native to southern China and possibly also in northern Myanmar. The species is very similar Fortunes Kopfeibe ( Cephalotaxus fortunei ), but is considered by most authors as distinct species.
Description
Can Cephalotaxus lanceolata grows as evergreen tree, the growth heights of up to 20 meters and diameter at breast height of around 0.4 meters reach. The violet Stammborke is smooth. The overhanging branches are shaped v - shaped in cross section and have a truncate tip.
The thin or leathery, straight or slightly sickle-shaped needles are linear - lanceolate, with a length from 4.5 to 10 centimeters and a width of 4 to 7 millimeters. You are on a very short stalk and go up at an angle of approximately 45 ° from the branches. The base of the needles is rounded, while the tip is acuminate. The needle edges are bent back. The needle top is dark green and at the needle base you will find white Stomatareihen.
The appearance of the male cones is unknown. The female cones have a 1.5 to 2 cm long stem. They are surrounded by a seed coat ( aril ). This turns to mature in September-November through greenish brown. The inverted - ovate - elliptical seeds are 3.5 to 4.5 inches long.
Distribution and location
The natural range of Cephalotaxus lanceolata includes the northwest of Yunnan Province, and possibly northern Myanmar. In Yunnan you will find the kind in Gongshan Drungzu Nuzu Zizhixian at the headwaters of Dulongjiang.
Cephalotaxus lanceolata grows at altitudes from 1450 to 1970 meters. The species grows scattered in evergreen broadleaf forests.
Cephalotaxus lanceolata is classified as " critically endangered " in the IUCN Red List. The main risk the destruction of forests is called for the utilization for farming. In the past, especially wood felling played an important role. The abundance of the species in China is estimated to be 6,754 trees, which is mostly represented by young trees. The stock of old trees is estimated at less than 2,500. The Chinese government has to protect the kind imposed a Fällverbot.
Use
Especially before the wood of the species was used.
System
The first description as Cephalotaxus lanceolata in 1975 by Kuo Mei Feng, Acta Phytotaxonomica Sinica, Volume 13 (4 ), page 86 The species is similar morphologically highly Fortunes Kopfeibe ( Cephalotaxus fortunei ), but is considered by most authors as a distinct species. A synonym for Cephalotaxus lanceolata C.M. Feng is Cephalotaxus fortunei var lanceolata (KM Feng ) Silba.
Swell
- Christopher J. Earle: Cephalotaxus lanceolata. In: The Gymnosperm Database. www.conifers.org, November 23, 2012, accessed on 19 December 2013 ( English).
- Liguo Fu, Nan Li, Thomas S. Elias & Robert R. Mill: Pinaceae. Picea. In: Wu Zhengyi, Peter H. Raven & Hong Deyuan (eds.): Flora of China. Cycadaceae through Fagaceae. Volume 4, Science Press and Missouri Botanical Garden Press, Beijing and St. Louis in 1999, ISBN 0-915279-70-3, Cephalotaxus lanceolata, S. 88 ( this printed work is the same text online, Cephalotaxus lanceolata - Online).