|
The pindrow fir or west Himalayan fir (''Abies pindrow'') is a fir native to the western Himalaya and adjacent mountains, from northeast Afghanistan east through northern Pakistan and India to central Nepal. It grows at altitudes of in forests together with deodar cedar, blue pine and morinda spruce, typically occupying cooler, moister north-facing slopes. It is a large evergreen tree growing to tall, and with a trunk diameter of up to . It has a conical crown with level branches. The shoots are greyish-pink to buff-brown, smooth and glabrous (hairless). The leaves are needle-like, among the longest of any fir, long, flattened in cross-section, glossy dark green above, with two whitish stomatal bands on the underside; they are arranged spirally on the shoots, but twisted at the base to lie in a flat plane either side of the shoot. The cones are broad cylindric-conic, long and broad, dark purple when young, disintegrating when mature to release the seeds 5–7 months after pollination. The closely related Gamble's fir (''Abies gamblei'', syn. ''A. pindrow'' var. ''brevifolia'', ''A. pindrow'' subsp. ''gamblei'') occurs in the same area but on somewhat drier sites; it differs in shorter leaves 2–4 cm long with less obvious stomatal bands and arranged more radially round the shoot. The cones are very similar. Recent research, however, has shown that ''Abies gamblei'' is not related to ''Abies pindrow''. At West Himalayan locations in Himachal state in India visited by members of the Dendrological Atlas team, at around 3000 m the latter species is replaced by ''Abies gamblei'', showing no intermediate forms. Such areas included Churdhar and the upper Sangla Valley at elevations between 3000 and 3400 m where these species have morphologically and ecologically clearly separated. Elevation-wise, pindrow fir occurs between (although mostly between 2400 and 3000 m) and ''Abies gamblei'' from . Some references of naming (in error) "''Abies spectabilis''" in the western Himalayas, most probably are true for ''Abies gamblei'', but to confirm this would require further research. The pindrow fir is used to a small extent for timber in its native range. It is occasionally grown as an ornamental tree in large gardens in western Europe, but demands high humidity and rainfall to grow well. The name ''pindrow'' derives from the tree's name in Nepali. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Abies pindrow」の詳細全文を読む スポンサード リンク
|