Difference between revisions of "Pteridium aquilinum var. latiusculum"

(Desvaux) L. Underwood ex A. Heller

Cat. N. Amer. Pl. ed. 3 17. 1909.

Common names: Eastern bracken
Illustrated
Basionym: Pteris latiuscula (Desvaux) Hieronymus ex Fries Mém. Soc. Linn. Paris 6. 2: 303. 1827
Synonyms: Pteridium latiusculum
Treatment appears in FNA Volume 2.
FNA>Volume Importer
 
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}}
 
}}
 
|common_names=Eastern bracken
 
|common_names=Eastern bracken
|basionyms={{Treatment/ID/Synonym
+
|special_status={{Treatment/ID/Special_status
 +
|code=F
 +
|label=Illustrated
 +
}}
 +
|basionyms={{Treatment/ID/Basionym
 
|name=Pteris latiuscula
 
|name=Pteris latiuscula
 
|authority=(Desvaux) Hieronymus ex Fries
 
|authority=(Desvaux) Hieronymus ex Fries
 +
|rank=species
 +
|publication_title=Mém. Soc. Linn. Paris
 +
|publication_place=6. 2: 303. 1827
 
}}
 
}}
 
|synonyms={{Treatment/ID/Synonym
 
|synonyms={{Treatment/ID/Synonym
 
|name=Pteridium latiusculum
 
|name=Pteridium latiusculum
|authority=unknown
+
|authority=
 +
|rank=species
 
}}
 
}}
 
|hierarchy=Dennstaedtiaceae;Pteridium;Pteridium aquilinum;Pteridium aquilinum var. latiusculum
 
|hierarchy=Dennstaedtiaceae;Pteridium;Pteridium aquilinum;Pteridium aquilinum var. latiusculum
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}}<!--
 
}}<!--
  
--><span class="statement" id="st-d0_s0" data-properties="petiole some measurement"><b>Petiole </b>15–100 cm.</span> <span class="statement" id="st-d0_s1" data-properties="blade shape;blade shape;blade shape;blade shape;blade length;blade width"><b>Blade </b>broadly triangular to sometimes ovate, 3-pinnate or 3-pinnate-pinnatifid at base, 20–80 × 25–50 cm;</span> <span class="statement" id="st-d0_s2" data-properties="blade margin pubescence;blade abaxial surface pubescence;rachis pubescence;rachis pubescence;costa pubescence;costa pubescence">blade margins and abaxial surface shaggy, rachises and costae glabrous or sparsely pilose abaxially.</span> <span class="statement" id="st-d0_s3" data-properties="pinna shape;distal pinna shape;distal pinna shape"><b>Pinnae </b>(proximal) broadly triangular, distal pinnae narrowly triangular or oblong;</span> <span class="statement" id="st-d0_s4" data-properties="terminal segment l w ratio;longer ultimate segment width">terminal segment of each pinna ca. 2–4 times longer than wide, longer ultimate segments less than their width apart, ca. 3–6 mm wide.</span> <span class="statement" id="st-d0_s5" data-properties="angle count;angle count"><b>Pinnules </b>at 45°–60° angle to costa;</span> <span class="statement" id="st-d0_s6" data-properties="ultimate segment reproduction;ultimate segment fusion;ultimate segment shape;ultimate segment orientation">fertile ultimate segments adnate or equally decurrent and surcurrent.</span> <span class="statement" id="st-d0_s7" data-properties=""><b>Outer </b>indusia entire or somewhat erose, glabrous.</span> <span class="statement" id="st-d0_s8" data-properties="outer indusium architecture or shape;outer indusium architecture or relief;outer indusium pubescence;2n chromosome count">2n = 104.</span><!--
+
--><span class="statement" id="st-undefined" data-properties=""><b>Petiole </b>15–100 cm. <b>Blade</b> broadly triangular to sometimes ovate, 3-pinnate or 3-pinnate-pinnatifid at base, 20–80 × 25–50 cm; blade margins and abaxial surface shaggy, rachises and costae glabrous or sparsely pilose abaxially. <b>Pinnae</b> (proximal) broadly triangular, distal pinnae narrowly triangular or oblong; terminal segment of each pinna ca. 2–4 times longer than wide, longer ultimate segments less than their width apart, ca. 3–6 mm wide. <b>Pinnules</b> at 45°–60° angle to costa; fertile ultimate segments adnate or equally decurrent and surcurrent. <b>Outer</b> indusia entire or somewhat erose, glabrous. <b>2n</b> = 104.</span><!--
  
 
-->{{Treatment/Body
 
-->{{Treatment/Body
 
|habitat=In barrens, pastures, open woodlands in moderately to strong acid soil, abundant, forming large colonies
 
|habitat=In barrens, pastures, open woodlands in moderately to strong acid soil, abundant, forming large colonies
 
|elevation=0–1500 m
 
|elevation=0–1500 m
|distribution=St. Pierre and Miquelon;Alta.;B.C.;Man.;N.B.;Nfld.;N.S.;P.E.I.;Ont.;Que.;Ala.;Ark.;Conn.;Del.;D.C.;Fla.;Ga.;Ill.;Ind.;Iowa;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Vt.;Va.;W.Va.;Wis.;Mexico in Nuevo León;Europe;Asia.
+
|distribution=St. Pierre and Miquelon;Alta.;B.C.;Man.;N.B.;Nfld. and Labr. (Nfld.);N.S.;P.E.I.;Ont.;Que.;Ala.;Ark.;Conn.;Del.;D.C.;Fla.;Ga.;Ill.;Ind.;Iowa;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Vt.;Va.;W.Va.;Wis.;Mexico in Nuevo León;Europe;Asia.
 
|discussion=<p>Colonies are more frequent in the northern part of the range. Fertile colonies, however, are more frequent in the southern and eastern portion of the range. Outliers in British Columbia and Alberta, which we have not seen, are documented in W. J. Cody and D. M. Britton (1989).</p>
 
|discussion=<p>Colonies are more frequent in the northern part of the range. Fertile colonies, however, are more frequent in the southern and eastern portion of the range. Outliers in British Columbia and Alberta, which we have not seen, are documented in W. J. Cody and D. M. Britton (1989).</p>
 
|tables=
 
|tables=
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-->{{#Taxon:
 
-->{{#Taxon:
 
name=Pteridium aquilinum var. latiusculum
 
name=Pteridium aquilinum var. latiusculum
|author=
 
 
|authority=(Desvaux) L. Underwood ex A. Heller
 
|authority=(Desvaux) L. Underwood ex A. Heller
 
|rank=variety
 
|rank=variety
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|habitat=In barrens, pastures, open woodlands in moderately to strong acid soil, abundant, forming large colonies
 
|habitat=In barrens, pastures, open woodlands in moderately to strong acid soil, abundant, forming large colonies
 
|elevation=0–1500 m
 
|elevation=0–1500 m
|distribution=St. Pierre and Miquelon;Alta.;B.C.;Man.;N.B.;Nfld.;N.S.;P.E.I.;Ont.;Que.;Ala.;Ark.;Conn.;Del.;D.C.;Fla.;Ga.;Ill.;Ind.;Iowa;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Vt.;Va.;W.Va.;Wis.;Mexico in Nuevo León;Europe;Asia.
+
|distribution=St. Pierre and Miquelon;Alta.;B.C.;Man.;N.B.;Nfld. and Labr. (Nfld.);N.S.;P.E.I.;Ont.;Que.;Ala.;Ark.;Conn.;Del.;D.C.;Fla.;Ga.;Ill.;Ind.;Iowa;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Vt.;Va.;W.Va.;Wis.;Mexico in Nuevo León;Europe;Asia.
 
|reference=None
 
|reference=None
 
|publication title=Cat. N. Amer. Pl. ed. 3
 
|publication title=Cat. N. Amer. Pl. ed. 3
 
|publication year=1909
 
|publication year=1909
|special status=
+
|special status=Illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V2/V2_371.xml
+
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V2/V2_371.xml
 
|genus=Pteridium
 
|genus=Pteridium
 
|species=Pteridium aquilinum
 
|species=Pteridium aquilinum
 
|variety=Pteridium aquilinum var. latiusculum
 
|variety=Pteridium aquilinum var. latiusculum
|2n chromosome count=104
 
|angle count=60;45
 
|blade abaxial surface pubescence=shaggy
 
|blade length=20cm;80cm
 
|blade margin pubescence=shaggy
 
|blade shape=3-pinnate-pinnatifid;3-pinnate;ovate;triangular
 
|blade width=25cm;50cm
 
|costa pubescence=pilose;glabrous
 
|distal pinna shape=oblong;triangular
 
|longer ultimate segment width=3mm;6mm
 
|outer indusium architecture or relief=erose
 
|outer indusium architecture or shape=entire
 
|outer indusium pubescence=glabrous
 
|petiole some measurement=15cm;100cm
 
|pinna shape=triangular
 
|rachis pubescence=pilose;glabrous
 
|terminal segment l w ratio=2-4
 
|ultimate segment fusion=adnate
 
|ultimate segment orientation=surcurrent
 
|ultimate segment reproduction=fertile
 
|ultimate segment shape=decurrent
 
 
}}<!--
 
}}<!--
  
 
-->[[Category:Treatment]][[Category:Pteridium aquilinum]]
 
-->[[Category:Treatment]][[Category:Pteridium aquilinum]]

Latest revision as of 21:23, 5 November 2020

Petiole 15–100 cm. Blade broadly triangular to sometimes ovate, 3-pinnate or 3-pinnate-pinnatifid at base, 20–80 × 25–50 cm; blade margins and abaxial surface shaggy, rachises and costae glabrous or sparsely pilose abaxially. Pinnae (proximal) broadly triangular, distal pinnae narrowly triangular or oblong; terminal segment of each pinna ca. 2–4 times longer than wide, longer ultimate segments less than their width apart, ca. 3–6 mm wide. Pinnules at 45°–60° angle to costa; fertile ultimate segments adnate or equally decurrent and surcurrent. Outer indusia entire or somewhat erose, glabrous. 2n = 104.


Habitat: In barrens, pastures, open woodlands in moderately to strong acid soil, abundant, forming large colonies
Elevation: 0–1500 m

Distribution

V2 371-distribution-map.gif

St. Pierre and Miquelon, Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.S., P.E.I., Ont., Que., Ala., Ark., Conn., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., N.H., N.J., N.Y., N.C., N.Dak., Ohio, Pa., R.I., S.C., S.Dak., Tenn., Vt., Va., W.Va., Wis., Mexico in Nuevo León, Europe, Asia.

Discussion

Colonies are more frequent in the northern part of the range. Fertile colonies, however, are more frequent in the southern and eastern portion of the range. Outliers in British Columbia and Alberta, which we have not seen, are documented in W. J. Cody and D. M. Britton (1989).

Selected References

None.

Lower Taxa

None.
Carol A. Jacobs +  and James H. Peck +
(Desvaux) L. Underwood ex A. Heller +
Pteris latiuscula +
Eastern bracken +
St. Pierre and Miquelon +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, P.E.I. +, Ont. +, Que. +, Ala. +, Ark. +, Conn. +, Del. +, D.C. +, Fla. +, Ga. +, Ill. +, Ind. +, Iowa +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Mo. +, N.H. +, N.J. +, N.Y. +, N.C. +, N.Dak. +, Ohio +, Pa. +, R.I. +, S.C. +, S.Dak. +, Tenn. +, Vt. +, Va. +, W.Va. +, Wis. +, Mexico in Nuevo León +, Europe +  and Asia. +
0–1500 m +
In barrens, pastures, open woodlands in moderately to strong acid soil, abundant, forming large colonies +
Cat. N. Amer. Pl. ed. 3 +
Illustrated +
Pteridium latiusculum +
Pteridium aquilinum var. latiusculum +
Pteridium aquilinum +
variety +