The screen fir (Sciadopitys verticillata) is the only one in the monotypical kind of the screen firs (Sciadopitys) and even the only kind in the family of the screen fir plants (Sciadopityaceae) within the resinous wood plants (Pinophyta). The Japanese name is Koya Maki. (Syn.: Taxus verticillata, Podocarpus verticillatus)

Spreading

The screen fir is resident only in Japan, in the southern Honshu, in Kyushu and Shikoku. Their Habitate is mixed woodlands, it is wet forests of middle altitudes between 500 and 1000 m NN with high precipitation and high humidity.

Description

There is evergreen trees, which reach 20 to 30 (rarely 35) meters stature height and a meter of master diameters. They grow both in and and are richly branch out. The bark is thick and reddish-brown. The branches are orange brown. The buds are oval and three to four millimeters long. There are two types of sheets: Shed sheets at the trunk, it are brown and up to three millimeters small; the photo-synthetically active are linealisch, formed like Kiefernnadeln, them have however another internal structure. These needle-shaped sit combined into 10 to 30 at short or Langtrieben. They are 6 to 13 cm long, 2 to 3 mm broad and 1 mm thickly, them remain three to four years at the Type.

They are getrenntgeschlechtig The male taps are 6 to 12 mm long. Female taps are oval first green and if they are ripe are them dark-brown, them are 4.5 to 10 cm long and 3.5 to 6.5 cm broad if they are opened, they are easily fragile if them ripe are. The seeds are ripely 18 to 20 months after dusting. The oval, orange-brown seeds are 8 to 12 mm long and are winged. The Keimlinge have two (Kotyledonen).

Related links

• Information to the screen fir. (English)
• Homepage von Andr Carstens.

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