Difference between revisions of "Adiantum pedatum"
Sp. Pl. 2: 1095. 1753.
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− | --><span class="statement" id="st- | + | --><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- | + | |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 | ||
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-->[[Category:Treatment]][[Category:Adiantum]] | -->[[Category:Treatment]][[Category:Adiantum]] |
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](/w/images/2/28/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.