Difference between revisions of "Selaginella wrightii"

Hieronymus

Hedwigia 39: 298. 1900.

Common names: Wright's spike-moss
Treatment appears in FNA Volume 2.
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--><span class="statement" id="st-d0_s0" data-properties="mat architecture or fragility;mat density"><b>Plants </b>on rock, forming loose to dense mats.</span> <span class="statement" id="st-d0_s1" data-properties="upperside growth form or orientation;upperside shape;underside growth form or orientation;underside shape;branch development;tip orientation"><b>Stems </b>not readily fragmenting, prostrate, upperside and underside structurally different, irregularly forked, branches determinate, tips upturned.</span> <span class="statement" id="st-d0_s2" data-properties="rhizophore diameter"><b>Rhizophores </b>borne on upperside of stems, throughout stem length, 0.25–0.37 mm diam.</span> <span class="statement" id="st-d0_s3" data-properties="leaf growth form;leaf arrangement;leaf fixation or orientation;leaf orientation;leaf coloration;rank count"><b>Leaves </b>dimorphic, arranged in 8 ranks, tightly appressed, ascending, green;</span> <span class="statement" id="st-d0_s4" data-properties="abaxial ridge count">abaxial ridges absent;</span> <span class="statement" id="st-d0_s5" data-properties="apex shape;bristle coloration;bristle some measurement">apex with yellowish bristle 0.2–0.5 mm, becoming denticulate (by breaking off of bristle);</span> <span class="statement" id="st-d0_s6" data-properties="bristle duration">bristle usually more persistent in underside leaves.</span> <span class="statement" id="st-d0_s7" data-properties="underside leaf shape;underside leaf shape;underside leaf shape;underside leaf atypical length;underside leaf length;underside leaf width"><b>Underside </b>leaves narrowly linear-lanceolate to falcate (on marginal ranks), 3.5–4.5 (–5) X 0.55–0.7 mm;</span> <span class="statement" id="st-d0_s8" data-properties="base fusion;base shape;base pubescence;base pubescence">base abruptly adnate or slightly decurrent, usually pubescent, sometimes glabrous;</span> <span class="statement" id="st-d0_s9" data-properties="margin architecture or pubescence or shape;cilium coloration;cilium orientation;cilium some measurement">margins ciliate, cilia transparent, spreading, 0.12–0.26 mm.</span> <span class="statement" id="st-d0_s10" data-properties="upperside leaf shape;upperside leaf length;upperside leaf width"><b>Upperside </b>leaves linear-lanceolate, 3.3–3.85 X 0.6–0.75 mm;</span> <span class="statement" id="st-d0_s11" data-properties="base fusion;base pubescence">base abruptly adnate, pubescent;</span> <span class="statement" id="st-d0_s12" data-properties="margin architecture or pubescence or shape;cilium coloration;cilium orientation;cilium some measurement">margins ciliate, cilia transparent, spreading, 0.12–0.26 mm.</span> <span class="statement" id="st-d0_s13" data-properties="strobilus architecture or arrangement or growth form;strobilus atypical some measurement;strobilus atypical some measurement;strobilus some measurement"><b>Strobili </b>solitary, (0.7–) 1.5–2 (–2.6) cm;</span> <span class="statement" id="st-d0_s14" data-properties="sporophyll shape;abaxial ridge prominence;base pubescence;margin architecture or pubescence or shape;apex shape;bristle prominence">sporophylls lanceolate, abaxial ridges not prominent, base glabrous, margins ciliate, apex strongly tapering, bristle obscure.</span><!--
+
--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>on rock, forming loose to dense mats. <b>Stems</b> not readily fragmenting, prostrate, upperside and underside structurally different, irregularly forked, branches determinate, tips upturned. <b>Rhizophores</b> borne on upperside of stems, throughout stem length, 0.25–0.37 mm diam. <b>Leaves</b> dimorphic, arranged in 8 ranks, tightly appressed, ascending, green; abaxial ridges absent; apex with yellowish bristle 0.2–0.5 mm, becoming denticulate (by breaking off of bristle); bristle usually more persistent in underside leaves. <b>Underside</b> leaves narrowly linear-lanceolate to falcate (on marginal ranks), 3.5–4.5(–5) X 0.55–0.7 mm; base abruptly adnate or slightly decurrent, usually pubescent, sometimes glabrous; margins ciliate, cilia transparent, spreading, 0.12–0.26 mm. <b>Upperside</b> leaves linear-lanceolate, 3.3–3.85 × 0.6–0.75 mm; base abruptly adnate, pubescent; margins ciliate, cilia transparent, spreading, 0.12–0.26 mm. <b>Strobili</b> solitary, (0.7–)1.5–2(–2.6) cm; sporophylls lanceolate, abaxial ridges not prominent, base glabrous, margins ciliate, apex strongly tapering, bristle obscure.</span><!--
  
 
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|elevation=800–2300 m
 
|elevation=800–2300 m
 
|distribution=N.Mex.;Tex.;Mexico.
 
|distribution=N.Mex.;Tex.;Mexico.
|discussion=<p>Of other species in the flora, Selaginella wrightii seems to be allied to S. hansenii. The structural differentiation of the stem, adjacently different leaves, and upturned branch tips align the two species to the series Eremophilae. Selaginella wrightii is a calciphile, according to R. M. Tryon (1955).</p><!--
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|discussion=<p>Of other species in the flora, <i>Selaginella wrightii</i> seems to be allied to <i>S. hansenii</i>. The structural differentiation of the stem, adjacently different leaves, and upturned branch tips align the two species to the series Eremophilae. <i>Selaginella wrightii</i> is a calciphile, according to R. M. Tryon (1955).</p><!--
 
--><p>Of conservation concern.</p>
 
--><p>Of conservation concern.</p>
 
|tables=
 
|tables=
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-->{{#Taxon:
 
-->{{#Taxon:
 
name=Selaginella wrightii
 
name=Selaginella wrightii
|author=
 
 
|authority=Hieronymus
 
|authority=Hieronymus
 
|rank=species
 
|rank=species
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|publication year=1900
 
|publication year=1900
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V2/V2_144.xml
+
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V2/V2_144.xml
 
|genus=Selaginella
 
|genus=Selaginella
 
|subgenus=Selaginella subg. Tetragonostachys
 
|subgenus=Selaginella subg. Tetragonostachys
 
|species=Selaginella wrightii
 
|species=Selaginella wrightii
|abaxial ridge count=absent
 
|abaxial ridge prominence=not prominent
 
|apex shape=tapering;denticulate
 
|base fusion=adnate;adnate
 
|base pubescence=glabrous;pubescent;glabrous;pubescent
 
|base shape=decurrent
 
|branch development=determinate
 
|bristle coloration=yellowish
 
|bristle duration=persistent
 
|bristle prominence=obscure
 
|bristle some measurement=0.2mm;0.5mm
 
|cilium coloration=transparent;transparent
 
|cilium orientation=spreading;spreading
 
|cilium some measurement=0.12mm;0.26mm
 
|leaf arrangement=arranged
 
|leaf coloration=green
 
|leaf fixation or orientation=appressed
 
|leaf growth form=dimorphic
 
|leaf orientation=ascending
 
|margin architecture or pubescence or shape=ciliate;ciliate;ciliate
 
|mat architecture or fragility=loose
 
|mat density=dense
 
|rank count=8
 
|rhizophore diameter=0.25mm;0.37mm
 
|sporophyll shape=lanceolate
 
|strobilus architecture or arrangement or growth form=solitary
 
|strobilus atypical some measurement=2cm;2.6cm
 
|strobilus some measurement=1.5cm;2cm
 
|tip orientation=upturned
 
|underside growth form or orientation=prostrate
 
|underside leaf atypical length=4.5mm;5mm
 
|underside leaf length=3.5mm;4.5mm
 
|underside leaf shape=narrowly linear-lanceolate;falcate
 
|underside leaf width=0.55mm;0.7mm
 
|underside shape=forked
 
|upperside growth form or orientation=prostrate
 
|upperside leaf length=3.3mm;3.85mm
 
|upperside leaf shape=linear-lanceolate
 
|upperside leaf width=0.6mm;0.75mm
 
|upperside shape=forked
 
 
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-->[[Category:Treatment]][[Category:Selaginella subg. Tetragonostachys]]
 
-->[[Category:Treatment]][[Category:Selaginella subg. Tetragonostachys]]

Latest revision as of 21:21, 5 November 2020

Plants on rock, forming loose to dense mats. Stems not readily fragmenting, prostrate, upperside and underside structurally different, irregularly forked, branches determinate, tips upturned. Rhizophores borne on upperside of stems, throughout stem length, 0.25–0.37 mm diam. Leaves dimorphic, arranged in 8 ranks, tightly appressed, ascending, green; abaxial ridges absent; apex with yellowish bristle 0.2–0.5 mm, becoming denticulate (by breaking off of bristle); bristle usually more persistent in underside leaves. Underside leaves narrowly linear-lanceolate to falcate (on marginal ranks), 3.5–4.5(–5) X 0.55–0.7 mm; base abruptly adnate or slightly decurrent, usually pubescent, sometimes glabrous; margins ciliate, cilia transparent, spreading, 0.12–0.26 mm. Upperside leaves linear-lanceolate, 3.3–3.85 × 0.6–0.75 mm; base abruptly adnate, pubescent; margins ciliate, cilia transparent, spreading, 0.12–0.26 mm. Strobili solitary, (0.7–)1.5–2(–2.6) cm; sporophylls lanceolate, abaxial ridges not prominent, base glabrous, margins ciliate, apex strongly tapering, bristle obscure.


Habitat: On exposed or shaded limestone cliffs
Elevation: 800–2300 m

Discussion

Of other species in the flora, Selaginella wrightii seems to be allied to S. hansenii. The structural differentiation of the stem, adjacently different leaves, and upturned branch tips align the two species to the series Eremophilae. Selaginella wrightii is a calciphile, according to R. M. Tryon (1955).

Of conservation concern.

Selected References

None.

Lower Taxa

None.