Picea maximowiczii
Branches of Maximowiczs Spruce ( Picea maximowiczii )
Maximowiczs Spruce ( Picea maximowiczii ) is a species of the family (Pinaceae ). It is native to the Japanese island of Honshu.
Description
Maximowiczs 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 cracked and peeling off in thick scales. The blassgräulich brown, grooved Two Grinde is hairless.
The dark green needles are at 0.2 to 0.3 millimeters long pulvini. The leathery needles are formed linearly to square at a length of 1 to 2 cm and a width of about 0.1 centimeters. Your tip is tapered spizt. There is a Stomatafurche On both sides of the needle. Each needle has two resin canals.
Maximowiczs spruce is monoecious - getrenntgeschlechtig ( monoecious ) and the flowering season extends from May to June. The pale brown male cones are in groups of two or three and are cylindrically shaped. The hanging pins are oblong-shaped with a length of 4-7 cm and a thickness of 1.5 to 2 centimeters long, cylindrical. They turn brown to maturity in October down. The thin, woody seed scales are spherical to obovate and 0.7 to 1.3 inches long and as wide. Your base runs to wedge-shaped. The elongated, tapered cone scales are about 0.3 inches tall. The gray-brown, inverted egg-shaped seeds are about 4 millimeters long and about 2 mm wide. You have a wrong - ovoid, light brown wing which 6 to 8 millimeters long and 3-4 mm wide.
Distribution and location
The natural, rugged area of distribution of Maximowiczs spruce located in Japan in central Honshu. It includes where the Chichibu Mountains, the Yatsugatake Mountains and the mountains of Fuji and Senjogatake.
Maximowiczs spruce grows at elevations from 1100 to 2000 meters. It grows mainly in mountainous forests, often along with the Hedgehog juniper (Juniperus rigida) and Japanese red pine ( Pinus densiflora ).
Both varieties of the species are classified as "endangered" in the IUCN Red List. It is noted, however, that a re-examination of risk is necessary. The main hazard reasons the earlier over-exploitation of forests and habitat destruction are called together with a small taper rate.
Use
Maximowiczs spruce is planted in Japan as an ornamental tree, especially in temples.
System
Picea maximowiczii is within the genre of spruce (Picea ) the subgenus Picea, Picea section, the subsection Picea and serial Politae assigned.
The first description as Picea maximowiczii in 1879 by Eduard August von Regel in The Gardeners ' Chronicle, new series, volume 11, page 363 The epithet maximowiczii honors the German - Russian botanist Karl Johann Maximowicz.
The species is divided into up to two varieties:
- Picea maximowiczii var maximowiczii is the nominate
- Picea maximowiczii var senanensis Hayashi
Swell
- Christopher J. Earle: Picea maximowiczii. In: The Gymnosperm Database. www.conifers.org, November 27, 2012, accessed on 25 May 2013 ( English).