View source for Selaginella douglasii

{{Treatment/ID
|accepted_name=Selaginella douglasii
|accepted_authority=(Hooker & Greville) Spring
|publications={{Treatment/Publication
|title=Bull. Acad. Roy. Sci. Bruxelles
|place=10: 138. 1843
|year=1843
}}
|common_names=Douglas's spike-moss
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Lycopodium douglasii
|authority=Hooker & Greville
|rank=species
|publication_title=Bot. Misc.
|publication_place=2: 396. 1831
}}
|synonyms=
|hierarchy=Selaginellaceae;Selaginella;Selaginella subg. Stachygynandrum;Selaginella douglasii
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Selaginellaceae]]</div><div class="higher-taxon"><small>genus</small>[[Selaginella]]</div><div class="higher-taxon"><small>subgenus</small>[[Selaginella subg. Stachygynandrum]]</div><div class="higher-taxon"><small>species</small>[[Selaginella douglasii]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism growth form;mat architecture or fragility"><b>Plants </b>on rock or terrestrial, forming loose mats.</span> <span class="statement" id="st-d0_s1" data-properties="stem growth form or orientation;stem architecture;branch shape;branch prominence or shape;branch architecture;branch pubescence"><b>Stems </b>long-creeping, branched, branches 2–3-forked, flat, not articulate, glabrous.</span> <span class="statement" id="st-d0_s2" data-properties="rhizophore diameter;main-stem position;stem position"><b>Rhizophores </b>borne on underside of stems throughout stem length or restricted to proximal ± 2/3 of main-stem or axillary throughout stem, 0.2–0.4 mm diam.</span> <span class="statement" id="st-d0_s3" data-properties="leaf fragility;leaf texture"><b>Leaves </b>delicate and papery.</span> <span class="statement" id="st-d0_s4" data-properties="lateral leaf orientation;lateral leaf orientation;lateral leaf arrangement;lateral leaf reflectance;lateral leaf coloration;lateral leaf reflectance;lateral leaf coloration;lateral leaf coloration;lateral leaf coloration;lateral leaf shape"><b>Lateral </b>leaves spreading or slightly ascending, distant, shiny green becoming shiny brown, with orange or red spot or entirely reddish, ovate to ovate-oblong or oblong, 1.5–3.2 X (1–) 1.5–2.2 mm;</span> <span class="statement" id="st-d0_s5" data-properties="base shape;auricle orientation;auricle prominence;auricle orientation;auricle prominence;base shape">base auriculate, basiscopic auricle conspicuous, acroscopic auricle inconspicuous or base ± rounded;</span> <span class="statement" id="st-d0_s6" data-properties="margin coloration;margin architecture or pubescence or shape;margin architecture or shape">margins green, ciliate toward auricles, otherwise entire;</span> <span class="statement" id="st-d0_s7" data-properties="apex shape">apex rounded to obtuse or truncate.</span> <span class="statement" id="st-d0_s8" data-properties="median leaf shape;median leaf atypical length;median leaf length;median leaf width"><b>Median </b>leaves ovate-oblong, (1.8–) 2–2.2 × 1–1.3 mm;</span> <span class="statement" id="st-d0_s9" data-properties="base shape;outer auricle size">base auriculate, outer auricle larger than inner one;</span> <span class="statement" id="st-d0_s10" data-properties="margin coloration;margin architecture or pubescence or shape;margin architecture or shape">margins green, ciliate at auricles, otherwise entire;</span> <span class="statement" id="st-d0_s11" data-properties="apex shape">apex abruptly cuspidate to bristled.</span> <span class="statement" id="st-d0_s12" data-properties="strobilus arrangement;strobilus some measurement"><b>Strobili </b>paired, 0.6–1.1 cm;</span> <span class="statement" id="st-d0_s13" data-properties="sporophyll architecture;sporophyll shape;sporophyll shape;keel architecture or shape;base pubescence;margin coloration;margin architecture or shape;margin architecture or shape;cilium quantity;cilium arrangement;cilium height or length or size;apex shape">sporophylls monomorphic, ovatelanceolate, keeled, keel not dentate, base glabrous, margins green, entire or with a few scattered, short cilia, apex acute to acuminate.</span><!--

-->{{Treatment/Body
|habitat=Rocky slopes, mossy rock, rock crevices, in partial shade, often along river banks
|elevation=100–800 m
|distribution=Idaho;Oreg.;Wash.
|discussion=<p>Selaginella douglasii, with no close relatives in the flora, is easy to identify by its shiny green leaves when young, turning shiny light brown when old, with an orange to red spot at the base, or totally reddish. Its closest relative is the Mexican S. delicatissima Linden ex A. Braun.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Selaginella douglasii
|authority=(Hooker & Greville) Spring
|rank=species
|parent rank=subgenus
|synonyms=
|basionyms=Lycopodium douglasii
|family=Selaginellaceae
|habitat=Rocky slopes, mossy rock, rock crevices, in partial shade, often along river banks
|elevation=100–800 m
|distribution=Idaho;Oreg.;Wash.
|reference=None
|publication title=Bull. Acad. Roy. Sci. Bruxelles
|publication year=1843
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V2/V2_652.xml
|genus=Selaginella
|subgenus=Selaginella subg. Stachygynandrum
|species=Selaginella douglasii
|apex shape=acute;acuminate
|auricle orientation=acroscopic;basiscopic
|auricle prominence=inconspicuous;conspicuous
|base pubescence=glabrous
|base shape=auriculate;rounded;auriculate
|branch architecture=not articulate
|branch prominence or shape=flat
|branch pubescence=glabrous
|branch shape=2-3-forked
|cilium arrangement=scattered
|cilium height or length or size=short
|cilium quantity=few
|keel architecture or shape=not dentate
|lateral leaf arrangement=distant
|lateral leaf coloration=reddish;red spot;brown;green
|lateral leaf orientation=ascending;spreading
|lateral leaf reflectance=shiny;shiny
|lateral leaf shape=ovate;ovate-oblong or oblong
|leaf fragility=delicate
|leaf texture=papery
|main-stem position=proximal
|margin architecture or pubescence or shape=ciliate;ciliate
|margin architecture or shape=with a few scattered , short cilia;entire;entire;entire
|margin coloration=green;green;green
|mat architecture or fragility=loose
|median leaf atypical length=1.8mm;2mm
|median leaf length=2mm;2.2mm
|median leaf shape=ovate-oblong
|median leaf width=1mm;1.3mm
|outer auricle size=larger
|rhizophore diameter=0.2mm;0.4mm
|sporophyll architecture=monomorphic
|sporophyll shape=keeled;ovatelanceolate
|stem architecture=branched
|stem growth form or orientation=long-creeping
|stem position=axillary
|strobilus arrangement=paired
|strobilus some measurement=0.6cm;1.1cm
|whole_organism growth form=plant
}}<!--

-->[[Category:Treatment]][[Category:Selaginella subg. Stachygynandrum]]