Difference between revisions of "Lycopodium hickeyi"

W. H. Wagner

Beitel, & R. C. Moran, Amer. Fern J. 79: 119–121. 1989.

Common names: Hickey's tree club-moss lycopode de Hickey
Synonyms: Lycopodium obscurum var. isophyllum Hickey
Treatment appears in FNA Volume 2.
FNA>Volume Importer
 
m (Fixed Nfld. and Labr. distribution to match printed version.)
 
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|name=Lycopodium obscurum var. isophyllum
 
|name=Lycopodium obscurum var. isophyllum
 
|authority=Hickey
 
|authority=Hickey
 +
|rank=variety
 
}}
 
}}
 
|hierarchy=Lycopodiaceae;Lycopodium;Lycopodium hickeyi
 
|hierarchy=Lycopodiaceae;Lycopodium;Lycopodium hickeyi
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}}<!--
 
}}<!--
  
--><span class="statement" id="st-d0_s0" data-properties="stem orientation;stem location"><b>Horizontal </b>stems subterranean.</span> <span class="statement" id="st-d0_s1" data-properties="shoot orientation;shoot growth form;shoot count;shoot architecture;branchlet count;branchlet variability"><b>Upright </b>shoots treelike, many branched, branchlets numerous and strongly differentiated;</span> <span class="statement" id="st-d0_s2" data-properties="bud constriction duration;bud constriction count">annual bud constrictions absent;</span> <span class="statement" id="st-d0_s3" data-properties="leaf coloration;leaf architecture or shape;leaf length;leaf width;leaf pubescence or texture;branchlet position;branchlet fixation or orientation">leaves on main axis below lateral branchlets tightly appressed, dark green, needlelike, 3.5–4.5 X 0.5–0.6 mm, soft.</span> <span class="statement" id="st-d0_s4" data-properties="lateral branchlet shape;lateral branchlet diameter"><b>Lateral </b>branchlets round in cross-section, 4–7 mm diam.;</span> <span class="statement" id="st-d0_s5" data-properties="bud constriction duration;bud constriction prominence">annual bud constrictions inconspicuous;</span> <span class="statement" id="st-d0_s6" data-properties="leaf orientation;leaf position;leaf count;leaf size;leaf arrangement or course or shape;leaf width;rank count;rank count;upperside count">leaves ascending, in 6 ranks, 1 on upperside, 4 lateral, and 1 on underside, equal in size, linear, widest in middle;</span> <span class="statement" id="st-d0_s7" data-properties="margin architecture or shape">margins entire;</span> <span class="statement" id="st-d0_s8" data-properties="apex shape;hair tip count">apex acuminate, lacking hair tip.</span> <span class="statement" id="st-d0_s9" data-properties="strobilus architecture;strobilus count;strobilus some measurement;shoot orientation"><b>Strobili </b>sessile, 1–7 per upright shoot, 15–65 mm.</span> <span class="statement" id="st-d0_s10" data-properties="sporophyll length;sporophyll width"><b>Sporophylls </b>3–3.5 X 2–2.5 mm, apex long, gradually narrowing to tip.</span> <span class="statement" id="st-d0_s11" data-properties="apex length or size;apex width;2n chromosome count">2n = 68.</span><!--
+
--><span class="statement" id="st-undefined" data-properties=""><b>Horizontal </b>stems subterranean. <b>Upright</b> shoots treelike, many branched, branchlets numerous and strongly differentiated; annual bud constrictions absent; leaves on main axis below lateral branchlets tightly appressed, dark green, needlelike, 3.5–4.5 × 0.5–0.6 mm, soft. <b>Lateral</b> branchlets round in cross section, 4–7 mm diam.; annual bud constrictions inconspicuous; leaves ascending, in 6 ranks, 1 on upperside, 4 lateral, and 1 on underside, equal in size, linear, widest in middle; margins entire; apex acuminate, lacking hair tip. <b>Strobili</b> sessile, 1–7 per upright shoot, 15–65 mm. <b>Sporophylls</b> 3–3.5 × 2–2.5 mm, apex long, gradually narrowing to tip. <b>2n</b> = 68.</span><!--
  
 
-->{{Treatment/Body
 
-->{{Treatment/Body
 
|habitat=Mainly in hardwood forests and second-growth, shrubby habitats
 
|habitat=Mainly in hardwood forests and second-growth, shrubby habitats
 
|elevation=0–1600 m
 
|elevation=0–1600 m
|distribution=N.B.;Nfld.;N.S.;Ont.;P.E.I.;Que.;Sask.;Conn.;Ind.;Ky.;Maine;Md.;Mass.;Mich.;Minn.;N.H.;N.J.;N.Y.;N.C.;Ohio;Pa.;R.I.;Tenn.;Vt.;Va.;W.Va.;Wis.
+
|distribution=N.B.;Nfld. and Labr.;N.S.;Ont.;P.E.I.;Que.;Sask.;Conn.;Ind.;Ky.;Maine;Md.;Mass.;Mich.;Minn.;N.H.;N.J.;N.Y.;N.C.;Ohio;Pa.;R.I.;Tenn.;Vt.;Va.;W.Va.;Wis.
|discussion=<p>The range of Lycopodium hickeyi overlaps with that of L. obscurum and extends considerably north and west of that species. Although the arrangement of the leaf ranks is similar to that of L. obscurum, the leaf dimorphy and the ascending orientation and absence of twisting of the leaves are diagnostic. Where ranges of two or three species overlap, indivual species retain their identities, indicating that their critical differences have a genetic basis.</p>
+
|discussion=<p>The range of <i>Lycopodium hickeyi</i> overlaps with that of <i>L. obscurum</i> and extends considerably north and west of that species. Although the arrangement of the leaf ranks is similar to that of <i>L. obscurum</i>, the leaf dimorphy and the ascending orientation and absence of twisting of the leaves are diagnostic. Where ranges of two or three species overlap, indivual species retain their identities, indicating that their critical differences have a genetic basis.</p>
 
|tables=
 
|tables=
 
|references=
 
|references=
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-->{{#Taxon:
 
-->{{#Taxon:
 
name=Lycopodium hickeyi
 
name=Lycopodium hickeyi
|author=
 
 
|authority=W. H. Wagner
 
|authority=W. H. Wagner
 
|rank=species
 
|rank=species
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|habitat=Mainly in hardwood forests and second-growth, shrubby habitats
 
|habitat=Mainly in hardwood forests and second-growth, shrubby habitats
 
|elevation=0–1600 m
 
|elevation=0–1600 m
|distribution=N.B.;Nfld.;N.S.;Ont.;P.E.I.;Que.;Sask.;Conn.;Ind.;Ky.;Maine;Md.;Mass.;Mich.;Minn.;N.H.;N.J.;N.Y.;N.C.;Ohio;Pa.;R.I.;Tenn.;Vt.;Va.;W.Va.;Wis.
+
|distribution=N.B.;Nfld. and Labr.;N.S.;Ont.;P.E.I.;Que.;Sask.;Conn.;Ind.;Ky.;Maine;Md.;Mass.;Mich.;Minn.;N.H.;N.J.;N.Y.;N.C.;Ohio;Pa.;R.I.;Tenn.;Vt.;Va.;W.Va.;Wis.
 
|reference=None
 
|reference=None
 
|publication title=Beitel, & R. C. Moran, Amer. Fern J.
 
|publication title=Beitel, & R. C. Moran, Amer. Fern J.
 
|publication year=1989
 
|publication year=1989
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V2/V2_722.xml
+
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V2/V2_722.xml
 
|genus=Lycopodium
 
|genus=Lycopodium
 
|species=Lycopodium hickeyi
 
|species=Lycopodium hickeyi
|2n chromosome count=68
 
|apex length or size=long
 
|apex shape=acuminate
 
|apex width=narrowing
 
|branchlet count=numerous
 
|branchlet fixation or orientation=appressed
 
|branchlet position=lateral
 
|branchlet variability=differentiated
 
|bud constriction count=absent
 
|bud constriction duration=annual;annual
 
|bud constriction prominence=inconspicuous
 
|hair tip count=lacking
 
|lateral branchlet diameter=4mm;7mm
 
|lateral branchlet shape=round
 
|leaf architecture or shape=needlelike
 
|leaf arrangement or course or shape=linear
 
|leaf coloration=dark green
 
|leaf count=1
 
|leaf length=3.5mm;4.5mm
 
|leaf orientation=ascending
 
|leaf position=lateral
 
|leaf pubescence or texture=soft
 
|leaf size=equal
 
|leaf width=widest;0.5mm;0.6mm
 
|margin architecture or shape=entire
 
|rank count=1;6
 
|shoot architecture=branched
 
|shoot count=many
 
|shoot growth form=treelike
 
|shoot orientation=upright;upright
 
|sporophyll length=3mm;3.5mm
 
|sporophyll width=2mm;2.5mm
 
|stem location=subterranean
 
|stem orientation=horizontal
 
|strobilus architecture=sessile
 
|strobilus count=1;7
 
|strobilus some measurement=15mm;65mm
 
|upperside count=4
 
 
}}<!--
 
}}<!--
  
 
-->[[Category:Treatment]][[Category:Lycopodium]]
 
-->[[Category:Treatment]][[Category:Lycopodium]]

Latest revision as of 22:37, 20 February 2024

Horizontal stems subterranean. Upright shoots treelike, many branched, branchlets numerous and strongly differentiated; annual bud constrictions absent; leaves on main axis below lateral branchlets tightly appressed, dark green, needlelike, 3.5–4.5 × 0.5–0.6 mm, soft. Lateral branchlets round in cross section, 4–7 mm diam.; annual bud constrictions inconspicuous; leaves ascending, in 6 ranks, 1 on upperside, 4 lateral, and 1 on underside, equal in size, linear, widest in middle; margins entire; apex acuminate, lacking hair tip. Strobili sessile, 1–7 per upright shoot, 15–65 mm. Sporophylls 3–3.5 × 2–2.5 mm, apex long, gradually narrowing to tip. 2n = 68.


Habitat: Mainly in hardwood forests and second-growth, shrubby habitats
Elevation: 0–1600 m

Distribution

V2 722-distribution-map.gif

N.B., Nfld. and Labr., N.S., Ont., P.E.I., Que., Sask., Conn., Ind., Ky., Maine, Md., Mass., Mich., Minn., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., Tenn., Vt., Va., W.Va., Wis.

Discussion

The range of Lycopodium hickeyi overlaps with that of L. obscurum and extends considerably north and west of that species. Although the arrangement of the leaf ranks is similar to that of L. obscurum, the leaf dimorphy and the ascending orientation and absence of twisting of the leaves are diagnostic. Where ranges of two or three species overlap, indivual species retain their identities, indicating that their critical differences have a genetic basis.

Selected References

None.

Lower Taxa

None.
... more about "Lycopodium hickeyi"
Warren H. Wagner Jr. +  and Joseph M. Beitel +
W. H. Wagner +
Hickey's tree club-moss +  and lycopode de Hickey +
N.B. +, Nfld. and Labr. +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Conn. +, Ind. +, Ky. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, R.I. +, Tenn. +, Vt. +, Va. +, W.Va. +  and Wis. +
0–1600 m +
Mainly in hardwood forests and second-growth, shrubby habitats +
Beitel, & R. C. Moran, Amer. Fern J. +
Lycopodium obscurum var. isophyllum +
Lycopodium hickeyi +
Lycopodium +
species +