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| − | --><span class="statement" id="st-d0_s0" data-properties="mat shape;mat architecture or fragility"><b>Plants </b>on rock or terrestrial, forming cushionlike or loose mats.</span> <span class="statement" id="st-d0_s1" data-properties="stem growth form or orientation;stem growth form or orientation;stem growth form or orientation;stem condition or texture;stem architecture or shape;branch architecture or shape;tip course"><b>Stems </b>decumbent to short-creeping, dry stem readily fragmenting, irregularly forking, without budlike arrested branches, tips straight;</span> <span class="statement" id="st-d0_s2" data-properties="main-stem development;upperside development;underside development;lateral branch architecture or shape;lateral branch development;lateral branch development;lateral branch orientation;lateral branch shape;mat shape">main-stem upperside and underside structurally slightly different, inconspicuously indeterminate, lateral branches radially symmetric, determinate or not, often strongly ascending on cushionlike mats, 1–2-forked.</span> <span class="statement" id="st-d0_s3" data-properties="rhizophore diameter"><b>Rhizophores </b>borne on upperside of stems, throughout stem length, 0.2–0.4 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 atypical length;leaf length;leaf atypical width;leaf width;pseudowhorl arrangement;pseudowhorl count"><b>Leaves </b>monomorphic, in alternate pseudowhorls of 4, tightly appressed, ascending, green, narrowly triangular-lanceolate to linear-lanceolate, (2–) 2.5–4 X 0.45–0.7 (–0.8) mm (smaller on young buds);</span> <span class="statement" id="st-d0_s5" data-properties="abaxial ridge count">abaxial ridges present;</span> <span class="statement" id="st-d0_s6" data-properties="base shape;base shape;base shape;base fusion;base pubescence;bud life cycle">base cuneate and decurrent or sometimes rounded and adnate on young buds, pubescent (hairs often covering 1/4 of leaf length abaxially);</span> <span class="statement" id="st-d0_s7" data-properties="margin architecture or pubescence or shape;cilium coloration;cilium coloration;cilium coloration;cilium orientation;cilium some measurement">margins ciliate, cilia transparent to whitish, spreading, 0.7–0.15 mm;</span> <span class="statement" id="st-d0_s8" data-properties="apex shape;apex shape;apex shape;apex shape">apex keeled, attenuate or obtuse, bristled;</span> <span class="statement" id="st-d0_s9" data-properties="bristle coloration;bristle coloration;bristle pubescence;bristle some measurement">bristle white or transparent, puberulent, 0.5–1.4 mm.</span> <span class="statement" id="st-d0_s10" data-properties="strobilus architecture or arrangement or growth form;strobilus atypical some measurement;strobilus some measurement"><b>Strobili </b>solitary, 0.4–1.5 (–2) cm;</span> <span class="statement" id="st-d0_s11" data-properties="sporophyll shape;sporophyll shape;abaxial ridge shape;abaxial ridge shape;abaxial ridge shape;abaxial ridge prominence;base pubescence;base pubescence;margin shape or architecture;apex shape;apex shape;apex shape">sporophylls lanceolate and strongly tapering to apex or deltate-ovate to ovatelanceolate, abaxial ridges moderately defined, base pubescent or glabrous, margins short-ciliate to dentate, apex keeled or plane, bristled.</span><!-- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>on rock or terrestrial, forming cushionlike or loose mats. <b>Stems</b> decumbent to short-creeping, dry stem readily fragmenting, irregularly forking, without budlike arrested branches, tips straight; main stem upperside and underside structurally slightly different, inconspicuously indeterminate, lateral branches radially symmetric, determinate or not, often strongly ascending on cushionlike mats, 1–2-forked. <b>Rhizophores</b> borne on upperside of stems, throughout stem length, 0.2–0.4 mm diam. <b>Leaves</b> monomorphic, in alternate pseudowhorls of 4, tightly appressed, ascending, green, narrowly triangular-lanceolate to linear-lanceolate, (2–)2.5–4 × 0.45–0.7(–0.8) mm (smaller on young buds); abaxial ridges present; base cuneate and decurrent or sometimes rounded and adnate on young buds, pubescent (hairs often covering 1/4 of leaf length abaxially); margins ciliate, cilia transparent to whitish, spreading, 0.7–0.15 mm; apex keeled, attenuate or obtuse, bristled; bristle white or transparent, puberulent, 0.5–1.4 mm. <b>Strobili</b> solitary, 0.4–1.5(–2) cm; sporophylls lanceolate and strongly tapering to apex or deltate-ovate to ovate-lanceolate, abaxial ridges moderately defined, base pubescent or glabrous, margins short-ciliate to dentate, apex keeled or plane, bristled.</span><!-- |
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| | |publication year=1920 | | |publication year=1920 |
| | |special status= | | |special status= |
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V2/V2_719.xml | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V2/V2_719.xml |
| | |genus=Selaginella | | |genus=Selaginella |
| | |subgenus=Selaginella subg. Tetragonostachys | | |subgenus=Selaginella subg. Tetragonostachys |
| | |species=Selaginella asprella | | |species=Selaginella asprella |
| − | |abaxial ridge count=present
| |
| − | |abaxial ridge prominence=defined
| |
| − | |abaxial ridge shape=deltate-ovate;ovatelanceolate
| |
| − | |apex shape=bristled;plane;keeled;bristled;obtuse;attenuate;keeled
| |
| − | |base fusion=adnate
| |
| − | |base pubescence=glabrous;pubescent;pubescent
| |
| − | |base shape=rounded;decurrent;cuneate
| |
| − | |branch architecture or shape=budlike
| |
| − | |bristle coloration=transparent;white
| |
| − | |bristle pubescence=puberulent
| |
| − | |bristle some measurement=0.5mm;1.4mm
| |
| − | |bud life cycle=young
| |
| − | |cilium coloration=transparent;whitish
| |
| − | |cilium orientation=spreading
| |
| − | |cilium some measurement=0.7mm;0.15mm
| |
| − | |lateral branch architecture or shape=symmetric
| |
| − | |lateral branch development=not;determinate
| |
| − | |lateral branch orientation=ascending
| |
| − | |lateral branch shape=1-2-forked
| |
| − | |leaf architecture=monomorphic
| |
| − | |leaf atypical length=2mm;2.5mm
| |
| − | |leaf atypical width=0.7mm;0.8mm
| |
| − | |leaf coloration=green
| |
| − | |leaf fixation or orientation=appressed
| |
| − | |leaf length=2.5mm;4mm
| |
| − | |leaf orientation=ascending
| |
| − | |leaf shape=narrowly triangular-lanceolate;linear-lanceolate
| |
| − | |leaf width=0.45mm;0.7mm
| |
| − | |main-stem development=indeterminate
| |
| − | |margin architecture or pubescence or shape=ciliate
| |
| − | |margin shape or architecture=short-ciliate to dentate
| |
| − | |mat architecture or fragility=loose
| |
| − | |mat shape=cushionlike;cushionlike
| |
| − | |pseudowhorl arrangement=alternate
| |
| − | |pseudowhorl count=4
| |
| − | |rhizophore diameter=0.2mm;0.4mm
| |
| − | |sporophyll shape=tapering;lanceolate
| |
| − | |stem architecture or shape=forking
| |
| − | |stem condition or texture=dry
| |
| − | |stem growth form or orientation=decumbent;short-creeping
| |
| − | |strobilus architecture or arrangement or growth form=solitary
| |
| − | |strobilus atypical some measurement=1.5cm;2cm
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| − | |strobilus some measurement=0.4cm;1.5cm
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| − | |tip course=straight
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| − | |underside development=indeterminate
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| − | |upperside development=indeterminate
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| | -->[[Category:Treatment]][[Category:Selaginella subg. Tetragonostachys]] | | -->[[Category:Treatment]][[Category:Selaginella subg. Tetragonostachys]] |
Plants on rock or terrestrial, forming cushionlike or loose mats. Stems decumbent to short-creeping, dry stem readily fragmenting, irregularly forking, without budlike arrested branches, tips straight; main stem upperside and underside structurally slightly different, inconspicuously indeterminate, lateral branches radially symmetric, determinate or not, often strongly ascending on cushionlike mats, 1–2-forked. Rhizophores borne on upperside of stems, throughout stem length, 0.2–0.4 mm diam. Leaves monomorphic, in alternate pseudowhorls of 4, tightly appressed, ascending, green, narrowly triangular-lanceolate to linear-lanceolate, (2–)2.5–4 × 0.45–0.7(–0.8) mm (smaller on young buds); abaxial ridges present; base cuneate and decurrent or sometimes rounded and adnate on young buds, pubescent (hairs often covering 1/4 of leaf length abaxially); margins ciliate, cilia transparent to whitish, spreading, 0.7–0.15 mm; apex keeled, attenuate or obtuse, bristled; bristle white or transparent, puberulent, 0.5–1.4 mm. Strobili solitary, 0.4–1.5(–2) cm; sporophylls lanceolate and strongly tapering to apex or deltate-ovate to ovate-lanceolate, abaxial ridges moderately defined, base pubescent or glabrous, margins short-ciliate to dentate, apex keeled or plane, bristled.
Habitat: Limestone ridges, dry rocky slopes, igneous rock, exposed cliffs or gravelly soil
Elevation: 900–2700 m
Distribution
Calif., Mexico in Baja California.
Discussion
Selaginella asprella may be confused with S. leucobryoides particularly because of its readily fragmenting stems.
Of conservation concern.
Selected References
None.
