Difference between revisions of "Polystichum microchlamys"

(H. Christ) Matsumura

Index Pl. Jap. 1: 343. 1904.

Basionym: Aspidium microchlamys H. Christ
Treatment appears in FNA Volume 2.
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--><span class="statement" id="st-d0_s0" data-properties="stem orientation"><b>Stems </b>erect.</span> <span class="statement" id="st-d0_s1" data-properties="leaf orientation;leaf some measurement"><b>Leaves </b>arching, 3–8 dm;</span> <span class="statement" id="st-d0_s2" data-properties="bulblet count">bulblets absent.</span> <span class="statement" id="st-d0_s3" data-properties="petiole length;petiole architecture or pubescence"><b>Petiole </b>1/8–1/4 length of leaf, densely scaly;</span> <span class="statement" id="st-d0_s4" data-properties="scale coloration;scale size">scales brown, diminishing in size distally.</span> <span class="statement" id="st-d0_s5" data-properties="blade shape;blade shape;base shape"><b>Blade </b>broadly lanceolate, 1-pinnate-pinnatifid, base slightly narrowed.</span> <span class="statement" id="st-d0_s6" data-properties="pinna shape;pinna arrangement;pinna some measurement"><b>Pinnae </b>narrowly lanceolate, not overlapping, in 1 plane, 3–13 cm;</span> <span class="statement" id="st-d0_s7" data-properties="base orientation or shape;proximal segment orientation;proximal segment size">base oblique, proximal acroscopic segments enlarged;</span> <span class="statement" id="st-d0_s8" data-properties="margin shape;segment architecture;segment fusion;segment orientation;segment orientation;segment orientation;tooth shape;tooth architecture or shape">margins incised to costa but segments sessile and adnate to costa for at least 2 mm, segments excised and decurrent, serrulate-spiny with teeth spreading to ascending;</span> <span class="statement" id="st-d0_s9" data-properties="apex shape">apex acute with subapical and apical teeth same size;</span> <span class="statement" id="st-d0_s10" data-properties="microscale shape;microscale density;microscale count or density">microscales filiform, dense abaxially, sparse adaxially.</span> <span class="statement" id="st-d0_s11" data-properties="indusium architecture or shape"><b>Indusia </b>erose-dentate.</span> <span class="statement" id="st-d0_s12" data-properties=""><b>Spore </b>color unknown.</span><!--
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--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>erect. <b>Leaves</b> arching, 3–8 dm; bulblets absent. <b>Petiole</b> 1/8–1/4 length of leaf, densely scaly; scales brown, diminishing in size distally. <b>Blade</b> broadly lanceolate, 1-pinnate-pinnatifid, base slightly narrowed. <b>Pinnae</b> narrowly lanceolate, not overlapping, in 1 plane, 3–13 cm; base oblique, proximal acroscopic segments enlarged; margins incised to costa but segments sessile and adnate to costa for at least 2 mm, segments excised and decurrent, serrulate-spiny with teeth spreading to ascending; apex acute with subapical and apical teeth same size; microscales filiform, dense abaxially, sparse adaxially. <b>Indusia</b> erose-dentate. <b>Spore</b> color unknown.</span><!--
  
 
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|publication year=1904
 
|publication year=1904
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V2/V2_84.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V2/V2_84.xml
 
|genus=Polystichum
 
|genus=Polystichum
 
|species=Polystichum microchlamys
 
|species=Polystichum microchlamys
|apex shape=acute
 
|base orientation or shape=oblique
 
|base shape=narrowed
 
|blade shape=1-pinnate-pinnatifid;lanceolate
 
|bulblet count=absent
 
|indusium architecture or shape=erose-dentate
 
|leaf orientation=arching
 
|leaf some measurement=3dm;8dm
 
|margin shape=incised
 
|microscale count or density=sparse
 
|microscale density=dense
 
|microscale shape=filiform
 
|petiole architecture or pubescence=scaly
 
|petiole length=1/8 length of leaf;1/4 length of leaf
 
|pinna arrangement=not overlapping
 
|pinna shape=lanceolate
 
|pinna some measurement=3cm;13cm
 
|proximal segment orientation=acroscopic
 
|proximal segment size=enlarged
 
|scale coloration=brown
 
|scale size=diminishing
 
|segment architecture=sessile
 
|segment fusion=adnate
 
|segment orientation=spreading;ascending
 
|stem orientation=erect
 
|tooth architecture or shape=serrulate-spiny
 
|tooth shape=decurrent
 
 
}}<!--
 
}}<!--
  
 
-->[[Category:Treatment]][[Category:Polystichum]]
 
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Revision as of 13:28, 27 July 2019

Stems erect. Leaves arching, 3–8 dm; bulblets absent. Petiole 1/8–1/4 length of leaf, densely scaly; scales brown, diminishing in size distally. Blade broadly lanceolate, 1-pinnate-pinnatifid, base slightly narrowed. Pinnae narrowly lanceolate, not overlapping, in 1 plane, 3–13 cm; base oblique, proximal acroscopic segments enlarged; margins incised to costa but segments sessile and adnate to costa for at least 2 mm, segments excised and decurrent, serrulate-spiny with teeth spreading to ascending; apex acute with subapical and apical teeth same size; microscales filiform, dense abaxially, sparse adaxially. Indusia erose-dentate. Spore color unknown.


Habitat: Terrestrial
Elevation: 0–100 m

Distribution

V2 84-distribution-map.gif

Alaska, Asia in Kamtchatka and Japan.

Discussion

Polystichum microchlamys is found in the flora only on Attu, at the western tip of the Aleutian Archipelago.

Selected References

None.

Lower Taxa

None.