Difference between revisions of "Adiantum pedatum"

Linnaeus

Sp. Pl. 2: 1095. 1753.

Common names: Northern maidenhair adiante du Canada
Synonyms: Adiantum pedatum forma billingsae KittredgeAdiantum pedatum forma laciniatum (Hopkins) Weatherby
Treatment appears in FNA Volume 2.
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--><span class="statement" id="st-d0_s0" data-properties="stem growth form or orientation"><b>Stems </b>short-creeping;</span> <span class="statement" id="st-d0_s1" data-properties="scale coloration;scale depth;scale coloration;scale coloration;margin architecture or shape">scales bronzy deep yellow, concolored, margins entire.</span> <span class="statement" id="st-d0_s2" data-properties="leaf orientation;leaf arrangement;leaf some measurement"><b>Leaves </b>lax-arching (rarely pendent), closely spaced, 40–75 cm.</span> <span class="statement" id="st-d0_s3" data-properties="petiole diameter;petiole pubescence;petiole pubescence"><b>Petiole </b>1–2 mm diam., glabrous, occasionally glaucous.</span> <span class="statement" id="st-d0_s4" data-properties="blade shape;blade architecture;blade architecture or shape;blade length;blade width;blade pubescence"><b>Blade </b>fan-shaped, pseudopedate, 1-pinnate distally, 15–30 × 15–35 cm, glabrous;</span> <span class="statement" id="st-d0_s5" data-properties="proximal pinna architecture or shape">proximal pinnae 3–9-pinnate;</span> <span class="statement" id="st-d0_s6" data-properties="rachis course;rachis pubescence;rachis pubescence">rachis straight, glabrous, occasionally glaucous.</span> <span class="statement" id="st-d0_s7" data-properties="segment stalk atypical some measurement;segment stalk some measurement;segment stalk coloration"><b>Segment </b>stalks 0.5–1.5 (–1.7) mm, dark color entering into segment base.</span> <span class="statement" id="st-d0_s8" data-properties="ultimate segment shape;ultimate segment length or width"><b>Ultimate </b>segments oblong, ca. 3 times as long as broad;</span> <span class="statement" id="st-d0_s9" data-properties="margin orientation;margin course">basiscopic margin straight;</span> <span class="statement" id="st-d0_s10" data-properties="margin orientation;margin shape;lobe arrangement;incision size or width;incision width;incision width">acroscopic margin lobed, lobes separated by narrow incisions 0–0.9 (–1.1) mm wide;</span> <span class="statement" id="st-d0_s11" data-properties="apex shape;apex shape;apex depth;lobe depth;lobe shape;lobe arrangement;sinuse depth;sinuse atypical some measurement;sinuse some measurement;margin shape;margin shape">apex obtuse, divided into shallow, rounded lobes separated by shallow sinuses 0.1–2 (–3.7) mm deep, margins of lobes crenulate or crenate-denticulate.</span> <span class="statement" id="st-d0_s12" data-properties="indusium shape;indusium some measurement;indusium pubescence"><b>Indusia </b>transversely oblong, 1–3 mm, glabrous.</span> <span class="statement" id="st-d0_s13" data-properties="spore diameter;2n chromosome count"><b>Spores </b>mostly 34–40 µm diam. <b>2n</b> = 58.</span><!--
+
--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>short-creeping; scales bronzy deep yellow, concolored, margins entire. <b>Leaves</b> lax-arching (rarely pendent), closely spaced, 40–75 cm. <b>Petiole</b> 1–2 mm diam., glabrous, occasionally glaucous. <b>Blade</b> fan-shaped, pseudopedate, 1-pinnate distally, 15–30 × 15–35 cm, glabrous; proximal pinnae 3–9-pinnate; rachis straight, glabrous, occasionally glaucous. <b>Segment</b> stalks 0.5–1.5(–1.7) mm, dark color entering into segment base. <b>Ultimate</b> segments oblong, ca. 3 times as long as broad; basiscopic margin straight; acroscopic margin lobed, lobes separated by narrow incisions 0–0.9(–1.1) mm wide; apex obtuse, divided into shallow, rounded lobes separated by shallow sinuses 0.1–2(–3.7) mm deep, margins of lobes crenulate or crenate-denticulate. <b>Indusia</b> transversely oblong, 1–3 mm, glabrous. <b>Spores</b> mostly 34–40 µm diam. <b>2n</b> = 58.</span><!--
  
 
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|phenology=Sporulating summer–fall.
 
|habitat=Rich, deciduous woodlands, often on humus-covered talus slopes and moist lime soils
 
|habitat=Rich, deciduous woodlands, often on humus-covered talus slopes and moist lime soils
 
|elevation=0–700 m
 
|elevation=0–700 m
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|basionyms=
 
|basionyms=
 
|family=Pteridaceae
 
|family=Pteridaceae
 +
|phenology=Sporulating summer–fall.
 
|habitat=Rich, deciduous woodlands, often on humus-covered talus slopes and moist lime soils
 
|habitat=Rich, deciduous woodlands, often on humus-covered talus slopes and moist lime soils
 
|elevation=0–700 m
 
|elevation=0–700 m
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|publication year=1753
 
|publication year=1753
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V2/V2_74.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V2/V2_74.xml
 
|genus=Adiantum
 
|genus=Adiantum
 
|species=Adiantum pedatum
 
|species=Adiantum pedatum
|2n chromosome count=58
 
|apex depth=deep
 
|apex shape=divided;obtuse
 
|blade architecture=pseudopedate
 
|blade architecture or shape=1-pinnate
 
|blade length=15cm;30cm
 
|blade pubescence=glabrous
 
|blade shape=fan-shaped
 
|blade width=15cm;35cm
 
|incision size or width=narrow
 
|incision width=0mm;0.9mm
 
|indusium pubescence=glabrous
 
|indusium shape=oblong
 
|indusium some measurement=1mm;3mm
 
|leaf arrangement=spaced
 
|leaf orientation=lax-arching
 
|leaf some measurement=40cm;75cm
 
|lobe arrangement=separated;separated
 
|lobe depth=shallow
 
|lobe shape=rounded
 
|margin architecture or shape=entire
 
|margin course=straight
 
|margin orientation=acroscopic;basiscopic
 
|margin shape=crenate-denticulate;crenulate;lobed
 
|petiole diameter=1mm;2mm
 
|petiole pubescence=glaucous;glabrous
 
|proximal pinna architecture or shape=3-9-pinnate
 
|rachis course=straight
 
|rachis pubescence=glaucous;glabrous
 
|scale coloration=concolored;yellow;bronzy
 
|scale depth=deep
 
|segment stalk atypical some measurement=1.5mm;1.7mm
 
|segment stalk coloration=dark color
 
|segment stalk some measurement=0.5mm;1.5mm
 
|sinuse atypical some measurement=2mm;3.7mm
 
|sinuse depth=shallow
 
|sinuse some measurement=0.1mm;2mm
 
|spore diameter=34um;40um
 
|stem growth form or orientation=short-creeping
 
|ultimate segment length or width=3 times as long as broad
 
|ultimate segment shape=oblong
 
 
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-->[[Category:Treatment]][[Category:Adiantum]]
 
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Revision as of 14:27, 27 July 2019

Stems short-creeping; scales bronzy deep yellow, concolored, margins entire. Leaves lax-arching (rarely pendent), closely spaced, 40–75 cm. Petiole 1–2 mm diam., glabrous, occasionally glaucous. Blade fan-shaped, pseudopedate, 1-pinnate distally, 15–30 × 15–35 cm, glabrous; proximal pinnae 3–9-pinnate; rachis straight, glabrous, occasionally glaucous. Segment stalks 0.5–1.5(–1.7) mm, dark color entering into segment base. Ultimate segments oblong, ca. 3 times as long as broad; basiscopic margin straight; acroscopic margin lobed, lobes separated by narrow incisions 0–0.9(–1.1) mm wide; apex obtuse, divided into shallow, rounded lobes separated by shallow sinuses 0.1–2(–3.7) mm deep, margins of lobes crenulate or crenate-denticulate. Indusia transversely oblong, 1–3 mm, glabrous. Spores mostly 34–40 µm diam. 2n = 58.


Phenology: Sporulating summer–fall.
Habitat: Rich, deciduous woodlands, often on humus-covered talus slopes and moist lime soils
Elevation: 0–700 m

Distribution

V2 74-distribution-map.gif

N.B., N.S., Ont., Que., Ala., Ark., Conn., Del., D.C., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Nebr., N.H., N.J., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., Tenn., Vt., Va., W.Va., Wis.

Discussion

Once considered a single species across its range in North America and eastern Asia, Adiantum pedatum is considered to be a complex of at least three vicariant species (A. pedatum and A. aleuticum occur in North America) and a derivative allopolyploid species (C. A. Paris 1991). Adiantum pedatum in the strict sense is restricted to deciduous woodlands in eastern North America.

Selected References

None.

Lower Taxa

None.
... more about "Adiantum pedatum"
Cathy A. Paris +
Linnaeus +
Northern maidenhair +  and adiante du Canada +
N.B. +, N.S. +, Ont. +, Que. +, Ala. +, Ark. +, Conn. +, Del. +, D.C. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Mo. +, Nebr. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, R.I. +, S.C. +, Tenn. +, Vt. +, Va. +, W.Va. +  and Wis. +
0–700 m +
Rich, deciduous woodlands, often on humus-covered talus slopes and moist lime soils +
Sporulating summer–fall. +
Adiantum pedatum +
Adiantum pedatum +
Adiantum +
species +