Difference between revisions of "Thelypteris dentata"

(Forsskål) E. P. St. John

Amer. Fern J. 26: 44. 1936.

Common names: Downy maiden fern downy shield fern tapering tri-vein fern
IntroducedIllustrated
Basionym: Polypodium dentatum Forsskål Fl. Aegypt.-Arab., 185. 1775
Synonyms: Christella dentata (Forsskål) Brownsey & Jermy Cyclosorus dentatus (Forsskål) Ching Dryopteris dentata (Forsskål) C. Christensen Dryopteris mollis (Swartz) Hieronymus Thelypteris reducta Small
Treatment appears in FNA Volume 2.
FNA>Volume Importer
 
imported>Volume Importer
 
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}}
 
}}
 
|common_names=Downy maiden fern;downy shield fern;tapering tri-vein fern
 
|common_names=Downy maiden fern;downy shield fern;tapering tri-vein fern
|basionyms={{Treatment/ID/Synonym
+
|special_status={{Treatment/ID/Special_status
 +
|code=I
 +
|label=Introduced
 +
}}{{Treatment/ID/Special_status
 +
|code=F
 +
|label=Illustrated
 +
}}
 +
|basionyms={{Treatment/ID/Basionym
 
|name=Polypodium dentatum
 
|name=Polypodium dentatum
 
|authority=Forsskål
 
|authority=Forsskål
 +
|rank=species
 +
|publication_title=Fl. Aegypt.-Arab.,
 +
|publication_place=185. 1775
 
}}
 
}}
 
|synonyms={{Treatment/ID/Synonym
 
|synonyms={{Treatment/ID/Synonym
 
|name=Christella dentata
 
|name=Christella dentata
 
|authority=(Forsskål) Brownsey & Jermy
 
|authority=(Forsskål) Brownsey & Jermy
}}{{Treatment/ID/Synonym
+
|rank=species
 +
}} {{Treatment/ID/Synonym
 
|name=Cyclosorus dentatus
 
|name=Cyclosorus dentatus
 
|authority=(Forsskål) Ching
 
|authority=(Forsskål) Ching
}}{{Treatment/ID/Synonym
+
|rank=species
 +
}} {{Treatment/ID/Synonym
 
|name=Dryopteris dentata
 
|name=Dryopteris dentata
 
|authority=(Forsskål) C. Christensen
 
|authority=(Forsskål) C. Christensen
}}{{Treatment/ID/Synonym
+
|rank=species
 +
}} {{Treatment/ID/Synonym
 
|name=Dryopteris mollis
 
|name=Dryopteris mollis
 
|authority=(Swartz) Hieronymus
 
|authority=(Swartz) Hieronymus
}}{{Treatment/ID/Synonym
+
|rank=species
 +
}} {{Treatment/ID/Synonym
 
|name=Thelypteris reducta
 
|name=Thelypteris reducta
 
|authority=Small
 
|authority=Small
 +
|rank=species
 
}}
 
}}
 
|hierarchy=Thelypteridaceae;Thelypteris;Thelypteris subg. Cyclosorus;Thelypteris dentata
 
|hierarchy=Thelypteridaceae;Thelypteris;Thelypteris subg. Cyclosorus;Thelypteris dentata
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}}<!--
 
}}<!--
  
--><span class="statement" id="st-d0_s0" data-properties="stem growth form or orientation;stem diameter"><b>Stems </b>short-creeping, 4–6 mm diam.</span> <span class="statement" id="st-d0_s1" data-properties="leaf growth form;leaf duration;leaf some measurement;leaf reproduction;pinna condition or size"><b>Leaves </b>often somewhat dimorphic, evergreen, often closely placed, 50–150 cm, fertile leaves with longer petioles and more contracted pinnae.</span> <span class="statement" id="st-d0_s2" data-properties="petiole coloration;petiole length;petiole width;scale coloration;scale shape;scale pubescence"><b>Petiole </b>often purplish brown, 15–50 cm × 3–6 mm, at base with brown, linear-lanceolate, hairy scales.</span> <span class="statement" id="st-d0_s3" data-properties="blade atypical some measurement;blade some measurement;blade atypical count;blade count;blade position;pinna size;blade shape;blade shape;blade shape"><b>Blade </b>(25–) 40–100 cm, 1–4 (–6) proximal pairs of pinnae reduced, blade gradually tapered to pinnatifid apex.</span> <span class="statement" id="st-d0_s4" data-properties="pinna length;pinna width;pinna shape;pinna width"><b>Pinnae </b>7–17 × 1–3 cm, incised 1/2–3/4 of width;</span> <span class="statement" id="st-d0_s5" data-properties="segment shape;basal segment orientation;basal segment shape">segments rounded at apex, basal acroscopic segment of proximal pinnae often auriculate;</span> <span class="statement" id="st-d0_s6" data-properties="segment arrangement;segment fusion;angle shape;vein architecture;vein some measurement">proximal pair of veins from adjacent segments united at obtuse angle below sinus with excurrent vein 2–4 mm.</span> <span class="statement" id="st-d0_s7" data-properties="indument some measurement;hair height or length or size"><b>Indument </b>abaxially of uniformly short hairs 0.1–0.2 mm on costae, veins, and blade tissue;</span> <span class="statement" id="st-d0_s8" data-properties="hair fragility;hair some measurement">veins adaxially with stouter hairs, also with hairs 0.1–0.2 mm on blade tissue.</span> <span class="statement" id="st-d0_s9" data-properties="sorus shape;sorus position;sorus position;sorus position"><b>Sori </b>round, medial to supramedial;</span> <span class="statement" id="st-d0_s10" data-properties="indusium coloration;indusium pubescence;hair some measurement">indusia tan, pubescent, hairs 0.1–0.3 mm;</span> <span class="statement" id="st-d0_s11" data-properties="gland coloration;gland architecture">sporangial stalks with orangish, stalked glands.</span> <span class="statement" id="st-d0_s12" data-properties="2n chromosome count">2n = 144.</span><!--
+
--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>short-creeping, 4–6 mm diam. <b>Leaves</b> often somewhat dimorphic, evergreen, often closely placed, 50–150 cm, fertile leaves with longer petioles and more contracted pinnae. <b>Petiole</b> often purplish brown, 15–50 cm × 3–6 mm, at base with brown, linear-lanceolate, hairy scales. <b>Blade</b> (25–)40–100 cm, 1–4(–6) proximal pairs of pinnae reduced, blade gradually tapered to pinnatifid apex. <b>Pinnae</b> 7–17 × 1–3 cm, incised 1/2–3/4 of width; segments rounded at apex, basal acroscopic segment of proximal pinnae often auriculate; proximal pair of veins from adjacent segments united at obtuse angle below sinus with excurrent vein 2–4 mm. <b>Indument</b> abaxially of uniformly short hairs 0.1–0.2 mm on costae, veins, and blade tissue; veins adaxially with stouter hairs, also with hairs 0.1–0.2 mm on blade tissue. <b>Sori</b> round, medial to supramedial; indusia tan, pubescent, hairs 0.1–0.3 mm; sporangial stalks with orangish, stalked glands. <b>2n</b> = 144.</span><!--
  
 
-->{{Treatment/Body
 
-->{{Treatment/Body
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|elevation=0–100 m
 
|elevation=0–100 m
 
|distribution=Ala.;Fla.;Ga.;Ky.;La.;s Mexico;West Indies in the Antilles;South America to n Argentina;native to tropical and subtropical Asia;Africa.
 
|distribution=Ala.;Fla.;Ga.;Ky.;La.;s Mexico;West Indies in the Antilles;South America to n Argentina;native to tropical and subtropical Asia;Africa.
|discussion=<p>Thelypteris dentata probably does not persist northward in areas (such as Kentucky) where winters are sometimes severe (R. Cranfill 1980).</p>
+
|introduced=true
 +
|discussion=<p><i>Thelypteris dentata</i> probably does not persist northward in areas (such as Kentucky) where winters are sometimes severe (R. Cranfill 1980).</p>
 
|tables=
 
|tables=
 
|references=
 
|references=
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-->{{#Taxon:
 
-->{{#Taxon:
 
name=Thelypteris dentata
 
name=Thelypteris dentata
|author=
 
 
|authority=(Forsskål) E. P. St. John
 
|authority=(Forsskål) E. P. St. John
 
|rank=species
 
|rank=species
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|elevation=0–100 m
 
|elevation=0–100 m
 
|distribution=Ala.;Fla.;Ga.;Ky.;La.;s Mexico;West Indies in the Antilles;South America to n Argentina;native to tropical and subtropical Asia;Africa.
 
|distribution=Ala.;Fla.;Ga.;Ky.;La.;s Mexico;West Indies in the Antilles;South America to n Argentina;native to tropical and subtropical Asia;Africa.
 +
|introduced=true
 
|reference=None
 
|reference=None
 
|publication title=Amer. Fern J.
 
|publication title=Amer. Fern J.
 
|publication year=1936
 
|publication year=1936
|special status=
+
|special status=Introduced;Illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V2/V2_707.xml
+
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V2/V2_707.xml
 
|genus=Thelypteris
 
|genus=Thelypteris
 
|subgenus=Thelypteris subg. Cyclosorus
 
|subgenus=Thelypteris subg. Cyclosorus
 
|species=Thelypteris dentata
 
|species=Thelypteris dentata
|2n chromosome count=144
 
|angle shape=obtuse
 
|basal segment orientation=acroscopic
 
|basal segment shape=auriculate
 
|blade atypical count=4;6
 
|blade atypical some measurement=25cm;40cm
 
|blade count=1;4
 
|blade position=proximal
 
|blade shape=gradually tapered;pinnatifid
 
|blade some measurement=40cm;100cm
 
|gland architecture=stalked
 
|gland coloration=orangish
 
|hair fragility=stouter
 
|hair height or length or size=short
 
|hair some measurement=0.1mm;0.3mm
 
|indument some measurement=0.1mm;0.2mm
 
|indusium coloration=tan
 
|indusium pubescence=pubescent
 
|leaf duration=evergreen
 
|leaf growth form=dimorphic
 
|leaf reproduction=fertile
 
|leaf some measurement=50cm;150cm
 
|petiole coloration=purplish brown
 
|petiole length=15cm;50cm
 
|petiole width=3mm;6mm
 
|pinna condition or size=contracted
 
|pinna length=7cm;17cm
 
|pinna shape=incised
 
|pinna size=reduced
 
|pinna width=1/2;3/4
 
|scale coloration=brown
 
|scale pubescence=hairy
 
|scale shape=linear-lanceolate
 
|segment arrangement=adjacent
 
|segment fusion=united
 
|segment shape=rounded
 
|sorus position=medial;supramedial
 
|sorus shape=round
 
|stem diameter=4mm;6mm
 
|stem growth form or orientation=short-creeping
 
|vein architecture=excurrent
 
|vein some measurement=2mm;4mm
 
 
}}<!--
 
}}<!--
  
 
-->[[Category:Treatment]][[Category:Thelypteris subg. Cyclosorus]]
 
-->[[Category:Treatment]][[Category:Thelypteris subg. Cyclosorus]]

Latest revision as of 21:24, 5 November 2020

Stems short-creeping, 4–6 mm diam. Leaves often somewhat dimorphic, evergreen, often closely placed, 50–150 cm, fertile leaves with longer petioles and more contracted pinnae. Petiole often purplish brown, 15–50 cm × 3–6 mm, at base with brown, linear-lanceolate, hairy scales. Blade (25–)40–100 cm, 1–4(–6) proximal pairs of pinnae reduced, blade gradually tapered to pinnatifid apex. Pinnae 7–17 × 1–3 cm, incised 1/2–3/4 of width; segments rounded at apex, basal acroscopic segment of proximal pinnae often auriculate; proximal pair of veins from adjacent segments united at obtuse angle below sinus with excurrent vein 2–4 mm. Indument abaxially of uniformly short hairs 0.1–0.2 mm on costae, veins, and blade tissue; veins adaxially with stouter hairs, also with hairs 0.1–0.2 mm on blade tissue. Sori round, medial to supramedial; indusia tan, pubescent, hairs 0.1–0.3 mm; sporangial stalks with orangish, stalked glands. 2n = 144.


Habitat: Damp woods
Elevation: 0–100 m

Distribution

V2 707-distribution-map.gif

Introduced; Ala., Fla., Ga., Ky., La., s Mexico, West Indies in the Antilles, South America to n Argentina, native to tropical and subtropical Asia, Africa.

Discussion

Thelypteris dentata probably does not persist northward in areas (such as Kentucky) where winters are sometimes severe (R. Cranfill 1980).

Selected References

None.

Lower Taxa

None.
... more about "Thelypteris dentata"
Alan R. Smith +
(Forsskål) E. P. St. John +
Polypodium dentatum +
Downy maiden fern +, downy shield fern +  and tapering tri-vein fern +
Ala. +, Fla. +, Ga. +, Ky. +, La. +, s Mexico +, West Indies in the Antilles +, South America to n Argentina +, native to tropical and subtropical Asia +  and Africa. +
0–100 m +
Damp woods +
Amer. Fern J. +
Introduced +  and Illustrated +
Christella dentata +, Cyclosorus dentatus +, Dryopteris dentata +, Dryopteris mollis +  and Thelypteris reducta +
Thelypteris dentata +
Thelypteris subg. Cyclosorus +
species +