Difference between revisions of "Selaginella asprella"

Maxon

Smithsonian Misc. Collect. 72: 6. 1920.

Common names: Bluish spike-moss
Treatment appears in FNA Volume 2.
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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
 
|strobilus some measurement=0.4cm;1.5cm
 
|tip course=straight
 
|underside development=indeterminate
 
|upperside development=indeterminate
 
 
}}<!--
 
}}<!--
  
 
-->[[Category:Treatment]][[Category:Selaginella subg. Tetragonostachys]]
 
-->[[Category:Treatment]][[Category:Selaginella subg. Tetragonostachys]]

Revision as of 14:26, 27 July 2019

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

V2 719-distribution-map.gif

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.

Lower Taxa

None.