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| − | --><span class="statement" id="st-d0_s0" data-properties="mat fusion;mat orientation;mat shape"><b>Plants </b>on rock or terrestrial, forming discrete long-spreading mats or seldom cushionlike mats.</span> <span class="statement" id="st-d0_s1" data-properties="stem architecture or shape;stem growth form or orientation;stem growth form or orientation;stem shape;branch architecture or shape;tip course"><b>Stems </b>radially symmetric, creeping or decumbent, not readily fragmenting, irregularly forked, without budlike arrested branches, tips straight;</span> <span class="statement" id="st-d0_s2" data-properties="main-stem development;lateral branch development;lateral branch orientation;lateral branch shape">main-stem indeterminate, lateral branches conspicuously or inconspicuously determinate, often strongly ascending, 1–3-forked.</span> <span class="statement" id="st-d0_s3" data-properties="rhizophore diameter"><b>Rhizophores </b>borne on upperside of stems, throughout stem length, 0.2–0.37 mm diam.</span> <span class="statement" id="st-d0_s4" data-properties="leaf architecture;leaf fixation or orientation;leaf orientation;leaf coloration;leaf shape;leaf shape;leaf shape;leaf length;leaf width;pseudowhorl arrangement;pseudowhorl count"><b>Leaves </b>monomorphic, in alternate pseudowhorls of 5, tightly appressed, ascending, green, linear-lanceolate to narrowly lanceolate, 2–3.5 X 0.35–0.5 mm (smaller on lateral branches);</span> <span class="statement" id="st-d0_s5" data-properties="abaxial ridge prominence">abaxial ridges prominent;</span> <span class="statement" id="st-d0_s6" data-properties="base shape;base shape;base shape;base shape;base fusion;base pubescence;base pubescence;lateral branch life cycle">base cuneate and decurrent to rounded and adnate on young lateral branches or buds, glabrous or sometimes pubescent;</span> <span class="statement" id="st-d0_s7" data-properties="margin architecture or pubescence or shape;cilium coloration;cilium orientation;cilium orientation;cilium orientation;cilium some measurement">margins long-ciliate, cilia transparent, spreading to ascending, 0.07–0.17 mm;</span> <span class="statement" id="st-d0_s8" data-properties="apex shape;apex architecture or shape;apex shape;apex shape;apex shape">apex keeled, truncate in profile, obtuse to attenuate;</span> <span class="statement" id="st-d0_s9" data-properties="bristle coloration;bristle coloration;bristle coloration;bristle coloration;bristle pubescence;bristle some measurement">bristle white to whitish or transparent, puberulent, 0.45–0.8 mm.</span> <span class="statement" id="st-d0_s10" data-properties="strobilus architecture or arrangement or growth form;strobilus some measurement"><b>Strobili </b>solitary, 0.5–2.5 cm;</span> <span class="statement" id="st-d0_s11" data-properties="sporophyll shape;sporophyll shape;sporophyll shape;abaxial ridge prominence;base pubescence;margin architecture or pubescence or shape">sporophylls deltate-ovate to ovatelanceolate, abaxial ridges well defined, base glabrous, margins ciliate, apex truncate in profile, bristled.</span> <span class="statement" id="st-d0_s12" data-properties="apex architecture or shape;apex shape;2n chromosome count">2n = 18.</span><!-- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>on rock or terrestrial, forming discrete long-spreading mats or seldom cushionlike mats. <b>Stems</b> radially symmetric, creeping or decumbent, not readily fragmenting, irregularly forked, without budlike arrested branches, tips straight; main stem indeterminate, lateral branches conspicuously or inconspicuously determinate, often strongly ascending, 1–3-forked. <b>Rhizophores</b> borne on upperside of stems, throughout stem length, 0.2–0.37 mm diam. <b>Leaves</b> monomorphic, in alternate pseudowhorls of 5, tightly appressed, ascending, green, linear-lanceolate to narrowly lanceolate, 2–3.5 × 0.35–0.5 mm (smaller on lateral branches); abaxial ridges prominent; base cuneate and decurrent to rounded and adnate on young lateral branches or buds, glabrous or sometimes pubescent; margins long-ciliate, cilia transparent, spreading to ascending, 0.07–0.17 mm; apex keeled, truncate in profile, obtuse to attenuate; bristle white to whitish or transparent, puberulent, 0.45–0.8 mm. <b>Strobili</b> solitary, 0.5–2.5 cm; sporophylls deltate-ovate to ovate-lanceolate, abaxial ridges well defined, base glabrous, margins ciliate, apex truncate in profile, bristled. <b>2n</b> = 18.</span><!-- |
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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_521.xml | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V2/V2_521.xml |
| | |genus=Selaginella | | |genus=Selaginella |
| | |subgenus=Selaginella subg. Tetragonostachys | | |subgenus=Selaginella subg. Tetragonostachys |
| | |species=Selaginella sibirica | | |species=Selaginella sibirica |
| − | |2n chromosome count=18
| |
| − | |abaxial ridge prominence=defined;prominent
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| − | |apex architecture or shape=truncate;truncate
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| − | |apex shape=bristled;obtuse;attenuate
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| − | |base fusion=adnate
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| − | |base pubescence=glabrous;pubescent;glabrous
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| − | |base shape=decurrent;rounded
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| − | |branch architecture or shape=budlike
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| − | |bristle coloration=white;whitish or transparent
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| − | |bristle pubescence=puberulent
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| − | |bristle some measurement=0.45mm;0.8mm
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| − | |cilium coloration=transparent
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| − | |cilium orientation=spreading;ascending
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| − | |cilium some measurement=0.07mm;0.17mm
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| − | |lateral branch development=determinate
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| − | |lateral branch life cycle=young
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| − | |lateral branch orientation=ascending
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| − | |lateral branch shape=1-3-forked
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| − | |leaf architecture=monomorphic
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| − | |leaf coloration=green
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| − | |leaf fixation or orientation=appressed
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| − | |leaf length=2mm;3.5mm
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| − | |leaf orientation=ascending
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| − | |leaf shape=linear-lanceolate;narrowly lanceolate
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| − | |leaf width=0.35mm;0.5mm
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| − | |main-stem development=indeterminate
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| − | |margin architecture or pubescence or shape=ciliate;long-ciliate
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| − | |mat fusion=discrete
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| − | |mat orientation=long-spreading
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| − | |mat shape=cushionlike
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| − | |pseudowhorl arrangement=alternate
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| − | |pseudowhorl count=5
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| − | |rhizophore diameter=0.2mm;0.37mm
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| − | |sporophyll shape=deltate-ovate;ovatelanceolate
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| − | |stem architecture or shape=symmetric
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| − | |stem growth form or orientation=decumbent;creeping
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| − | |stem shape=forked
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| − | |strobilus architecture or arrangement or growth form=solitary
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| − | |strobilus some measurement=0.5cm;2.5cm
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| − | |tip course=straight
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| | -->[[Category:Treatment]][[Category:Selaginella subg. Tetragonostachys]] | | -->[[Category:Treatment]][[Category:Selaginella subg. Tetragonostachys]] |
Plants on rock or terrestrial, forming discrete long-spreading mats or seldom cushionlike mats. Stems radially symmetric, creeping or decumbent, not readily fragmenting, irregularly forked, without budlike arrested branches, tips straight; main stem indeterminate, lateral branches conspicuously or inconspicuously determinate, often strongly ascending, 1–3-forked. Rhizophores borne on upperside of stems, throughout stem length, 0.2–0.37 mm diam. Leaves monomorphic, in alternate pseudowhorls of 5, tightly appressed, ascending, green, linear-lanceolate to narrowly lanceolate, 2–3.5 × 0.35–0.5 mm (smaller on lateral branches); abaxial ridges prominent; base cuneate and decurrent to rounded and adnate on young lateral branches or buds, glabrous or sometimes pubescent; margins long-ciliate, cilia transparent, spreading to ascending, 0.07–0.17 mm; apex keeled, truncate in profile, obtuse to attenuate; bristle white to whitish or transparent, puberulent, 0.45–0.8 mm. Strobili solitary, 0.5–2.5 cm; sporophylls deltate-ovate to ovate-lanceolate, abaxial ridges well defined, base glabrous, margins ciliate, apex truncate in profile, bristled. 2n = 18.
Habitat: Dry, alpine, rocky slopes, rock crevices, granite rock, limestone boulders, sandstone, bare open grassy tundra
Elevation: 130–2400 m
Distribution
N.W.T., Yukon, Alaska, Asia in Japan and the former Soviet republics.
Discussion
Selaginella sibirica is most closely allied to S. rupestris. In addition to differences noted in the descriptions, it can be distinguished from S. rupestris by the numerous marginal cilia on the leaves and by the transparent sporophyll margins; S. rupestris has a variable number (usually few) of marginal cilia and nontransparent sporophyll margins.
Selected References
None.
