Picea glehnii
Sakhalin spruce (Picea glehnii )
The Sakhalin spruce (Picea glehnii ) is a species of the family (Pinaceae ). It is native to eastern Russia and Japan.
Description
The Sakhalin spruce grows as a evergreen tree that can reach the stature heights of up to 30 meters and diameter at breast height of up to 1 meter. The gray -brown bark is furrowed and peels off in flakes. The red-brown, grooved Two Grinde is densely covered with brownish, fluffy hair.
The dark green needles are at 0.6 to 0.7 millimeters long pulvini. The leathery needles are square shaped with a length of 0.8 to 1.2 centimeters and a width of about 0.1 centimeters. Your tip is pointed. On the needle top, there are two clearly identifiable, white Stomatabänder. The two Stomatabänder on the needle base are inconspicuous and difficult to see. Each needle has two resin canals.
The Sakhalin spruce is monoecious - getrenntgeschlechtig ( monoecious ) and the flowering period is in June. The red-brown male cones are at a about 0.2 centimeters long, thin stalk and are at a length from 0.7 to 1.4 inches and a thickness of about 0.4 centimeters cylindrically shaped. The semi -fitting pins are cylindrically shaped with a length of 3-5 cm and a thickness of 2 to 2.5 centimeters. They are initially dark red-purple and discolored to maturity in September to go brown. The numerous, woody cone scales are spherical to obovate and 0.8 to 1 cm long and as wide. Your base runs to wedge-shaped. The light brown, obovate seeds are about 3 millimeters long and 1.5 millimeters wide. You have a wrong - ovoid, light brown wing which 5 to 6 millimeters long and 3-4 mm wide.
The chromosome number is 2n = 24
Distribution and location
The natural range of the Sakhalin spruce located in the eastern Russia and Japan. In Russia, it includes the southern part of Sakhalin and the Kuril island chain. In Japan, you can find the kind on the Kuril Islands, Hokkaidō and the northern part of Honshu.
The Sakhalin spruce grows from sea level to altitudes of 1600 meters.
You will " not endangered" than in the IUCN Red List. It is noted, however, that a re-examination of risk is necessary.
Use
The Sakhalin spruce is planted as an ornamental tree.
System
Picea is glehnii within the genus of spruce (Picea ) assigned to the subgenus Picea, Picea section, the subsection Marianae and serial Rubentes.
The first description as Abies glehnii was made in 1868 by Karl Friedrich Schmidt in Travel in Amur -Lande, page 176 Maxwell Tylden Masters transferred the species as Picea glehnii in 1880 in The Gardeners ' Chronicle, new series, volume 13, page 300 in the genus Picea. The specific epithet honors the glehnii Russian botanist Peter of Glehn which discovered the species, together with Schmidt. A synonym for Picea glehnii (F. Schmidt ) Mast. is Pinus glehnii (F. Schmidt) Voss.
The species is divided in to two forms:
- Picea glehnii f chlorocarpa Miyabe & Kudo has matured towards green to greenish yellow colored cones.
- Picea glehnii f glehnii is the nominate
Swell
- Christopher J. Earle: Picea glehnii. In: The Gymnosperm Database. www.conifers.org, November 28, 2012, accessed on May 3, 2013 ( English).