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・ Polytechnic University of the Philippines San Pedro
・ Polytechnic University of the Philippines Santa Maria
・ Polytechnic University of the Philippines Santa Rosa
・ Polytechnic University of the Philippines Santo Tomas
・ Polytechnic University of the Philippines System
・ Polytechnic University of the Philippines Taguig
・ Polytechnic University of the Philippines Unisan
・ Polytechnic University of the Philippines – Bataan
・ Polytechnic University of the Philippines – Nueva Ecija
・ Polytechnic University of Tirana
・ Polytechnic University of Turin
・ Polystichum lemmonii
・ Polystichum lonchitis
・ Polystichum mohrioides
・ Polystichum moorei
Polystichum munitum
・ Polystichum proliferum
・ Polystichum richardii
・ Polystichum scopulinum
・ Polystichum setiferum
・ Polystichum tsus-simense
・ Polystichum vestitum
・ Polystichum whiteleggei
・ Polystichus connexus
・ Polystick
・ Polystictus
・ Polystictus (bird)
・ Polystictus (fungus)
・ Polystigma
・ Polystigma fulvum


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Polystichum munitum : ウィキペディア英語版
Polystichum munitum

''Polystichum munitum'', the western swordfern, is an evergreen fern native to western North America, where it is one of the most abundant ferns. It occurs along the Pacific coast from southeastern Alaska to southern California, and also inland east to southeastern British Columbia, northern Idaho and western Montana, with isolated populations in interior northern British Columbia, the Black Hills in South Dakota, and on Guadalupe Island off Baja California.
==Description==
The dark green fronds of this fern grow tall, in a tight clump spreading out radially from a round base. They are single-pinnate, with the pinnae alternating on the stalk. Each pinna is long, with a small upward-pointing lobe (a sword hilt, hence the name) at the base, and the edges are serrated with bristly tips. Individual fronds live for 1.5 to 2.5 years and remain attached to the rhizome after withering. The round sori occupy two rows on either side of the midrib of each pinna and are covered by a centrally-attached, umbrella-like indusium with fringed edges. They produce light yellow spores.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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