Difference between revisions of "Selaginella eatonii"

Hieronymus ex Small

Ferns Trop. Florida 67. 1918.

Common names: Eaton's spike-moss
Conservation concern
Synonyms: Diplostachyum eatonii (Hieronymus ex Small) Small
Treatment appears in FNA Volume 2.
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}}
 
}}
 
|common_names=Eaton's spike-moss
 
|common_names=Eaton's spike-moss
 +
|special_status={{Treatment/ID/Special_status
 +
|code=C
 +
|label=Conservation concern
 +
}}
 
|basionyms=
 
|basionyms=
 
|synonyms={{Treatment/ID/Synonym
 
|synonyms={{Treatment/ID/Synonym
 
|name=Diplostachyum eatonii
 
|name=Diplostachyum eatonii
 
|authority=(Hieronymus ex Small) Small
 
|authority=(Hieronymus ex Small) Small
 +
|rank=species
 
}}
 
}}
 
|hierarchy=Selaginellaceae;Selaginella;Selaginella subg. Stachygynandrum;Selaginella eatonii
 
|hierarchy=Selaginellaceae;Selaginella;Selaginella subg. Stachygynandrum;Selaginella eatonii
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}}<!--
 
}}<!--
  
--><span class="statement" id="st-d0_s0" data-properties="plant growth form or habitat;clump size;clump density"><b>Plants </b>terrestrial, forming tiny (1–4 cm), dense clumps.</span> <span class="statement" id="st-d0_s1" data-properties="stem growth form or orientation;stem architecture;stem shape;stem prominence or shape;stem architecture;stem pubescence"><b>Stems </b>short-creeping, unbranched or few-forked, flat, not articulate, glabrous.</span> <span class="statement" id="st-d0_s2" data-properties="rhizophore position;rhizophore diameter"><b>Rhizophores </b>axillary, 0.02–0.04 mm diam.</span> <span class="statement" id="st-d0_s3" data-properties="leaf fragility;leaf texture"><b>Leaves </b>delicate, papery.</span> <span class="statement" id="st-d0_s4" data-properties="lateral leaf orientation;lateral leaf arrangement;lateral leaf arrangement;lateral leaf coloration;lateral leaf shape;lateral leaf shape;lateral leaf shape;lateral leaf length;lateral leaf width"><b>Lateral </b>leaves spreading, well spaced or crowded toward stem tip, green, ovate to ovate-oblong, 1–1.5 X 0.5–0.9 mm;</span> <span class="statement" id="st-d0_s5" data-properties="base shape">base rounded;</span> <span class="statement" id="st-d0_s6" data-properties="margin coloration;margin architecture or shape">margins transparent, serrate;</span> <span class="statement" id="st-d0_s7" data-properties="apex shape">apex acute.</span> <span class="statement" id="st-d0_s8" data-properties="median leaf shape;median leaf length;median leaf width"><b>Median </b>leaves lanceolate, 0.8–1.2 X 0.3–0.35 mm;</span> <span class="statement" id="st-d0_s9" data-properties="base orientation or shape">base oblique;</span> <span class="statement" id="st-d0_s10" data-properties="margin coloration;margin architecture or shape">margins transparent, serrate;</span> <span class="statement" id="st-d0_s11" data-properties="apex shape">apex bristled;</span> <span class="statement" id="st-d0_s12" data-properties="bristle length">bristle to 1/3 length of leaf.</span> <span class="statement" id="st-d0_s13" data-properties="strobilus architecture or arrangement or growth form;strobilus some measurement"><b>Strobili </b>solitary, 2–3 mm;</span> <span class="statement" id="st-d0_s14" data-properties="sporophyll shape;sporophyll shape;keel architecture or shape;base pubescence;margin architecture or shape;apex shape">sporophylls ovatelanceolate, strongly keeled toward tip, keel dentate, base glabrous, margins serrate, apex long-acuminate.</span><!--
+
--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>terrestrial, forming tiny (1–4 cm), dense clumps. <b>Stems</b> short-creeping, unbranched or few-forked, flat, not articulate, glabrous. <b>Rhizophores</b> axillary, 0.02–0.04 mm diam. <b>Leaves</b> delicate, papery. <b>Lateral</b> leaves spreading, well spaced or crowded toward stem tip, green, ovate to ovate-oblong, 1–1.5 × 0.5–0.9 mm; base rounded; margins transparent, serrate; apex acute. <b>Median</b> leaves lanceolate, 0.8–1.2 × 0.3–0.35 mm; base oblique; margins transparent, serrate; apex bristled; bristle to 1/3 length of leaf. <b>Strobili</b> solitary, 2–3 mm; sporophylls ovate-lanceolate, strongly keeled toward tip, keel dentate, base glabrous, margins serrate, apex long-acuminate.</span><!--
  
 
-->{{Treatment/Body
 
-->{{Treatment/Body
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|elevation=0 m
 
|elevation=0 m
 
|distribution=Fla.;West Indies in the Bahamas.
 
|distribution=Fla.;West Indies in the Bahamas.
|discussion=<p>Selaginella eatonii is a minute species, easy to distinguish by its long-bristled leaf apex, iridescent leaf surface, and somewhat transparent sporophylls on the underside of the stem. It does not have any close relatives among the species in the flora. Selaginella eatonii may best be placed within subg. Heterostachys, with which it shares flattened strobili, keeled sporophylls, and a partial laminar flap on the sporophylls. Selaginella eatonii does not have strongly dimorphic sporophylls or a very well-defined laminar flap, and therefore I prefer to treat it here with the other heterophyllous species of subg. Stachygynandrum until a detailed study of subg. Heterostachys can be made.</p><!--
+
|discussion=<p><i>Selaginella eatonii</i> is a minute species, easy to distinguish by its long-bristled leaf apex, iridescent leaf surface, and somewhat transparent sporophylls on the underside of the stem. It does not have any close relatives among the species in the flora. <i>Selaginella eatonii</i> may best be placed within subg. Heterostachys, with which it shares flattened strobili, keeled sporophylls, and a partial laminar flap on the sporophylls. <i>Selaginella eatonii</i> does not have strongly dimorphic sporophylls or a very well-defined laminar flap, and therefore I prefer to treat it here with the other heterophyllous species of subg. Stachygynandrum until a detailed study of subg. Heterostachys can be made.</p><!--
 
--><p>Of conservation concern.</p>
 
--><p>Of conservation concern.</p>
 
|tables=
 
|tables=
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-->{{#Taxon:
 
-->{{#Taxon:
 
name=Selaginella eatonii
 
name=Selaginella eatonii
|author=
 
 
|authority=Hieronymus ex Small
 
|authority=Hieronymus ex Small
 
|rank=species
 
|rank=species
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|publication title=Ferns Trop. Florida
 
|publication title=Ferns Trop. Florida
 
|publication year=1918
 
|publication year=1918
|special status=
+
|special status=Conservation concern
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V2/V2_21.xml
+
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V2/V2_21.xml
 
|genus=Selaginella
 
|genus=Selaginella
 
|subgenus=Selaginella subg. Stachygynandrum
 
|subgenus=Selaginella subg. Stachygynandrum
 
|species=Selaginella eatonii
 
|species=Selaginella eatonii
|apex shape=long-acuminate;bristled;acute
 
|base orientation or shape=oblique
 
|base pubescence=glabrous
 
|base shape=rounded
 
|bristle length=0 length of leaf;1/3 length of leaf
 
|clump density=dense
 
|clump size=tiny
 
|keel architecture or shape=dentate
 
|lateral leaf arrangement=crowded;spaced
 
|lateral leaf coloration=green
 
|lateral leaf length=1mm;1.5mm
 
|lateral leaf orientation=spreading
 
|lateral leaf shape=ovate;ovate-oblong
 
|lateral leaf width=0.5mm;0.9mm
 
|leaf fragility=delicate
 
|leaf texture=papery
 
|margin architecture or shape=serrate;serrate;serrate
 
|margin coloration=transparent;transparent
 
|median leaf length=0.8mm;1.2mm
 
|median leaf shape=lanceolate
 
|median leaf width=0.3mm;0.35mm
 
|plant growth form or habitat=terrestrial
 
|rhizophore diameter=0.02mm;0.04mm
 
|rhizophore position=axillary
 
|sporophyll shape=keeled;ovatelanceolate
 
|stem architecture=not articulate;unbranched
 
|stem growth form or orientation=short-creeping
 
|stem prominence or shape=flat
 
|stem pubescence=glabrous
 
|stem shape=few-forked
 
|strobilus architecture or arrangement or growth form=solitary
 
|strobilus some measurement=2mm;3mm
 
 
}}<!--
 
}}<!--
  
 
-->[[Category:Treatment]][[Category:Selaginella subg. Stachygynandrum]]
 
-->[[Category:Treatment]][[Category:Selaginella subg. Stachygynandrum]]

Latest revision as of 20:22, 5 November 2020

Plants terrestrial, forming tiny (1–4 cm), dense clumps. Stems short-creeping, unbranched or few-forked, flat, not articulate, glabrous. Rhizophores axillary, 0.02–0.04 mm diam. Leaves delicate, papery. Lateral leaves spreading, well spaced or crowded toward stem tip, green, ovate to ovate-oblong, 1–1.5 × 0.5–0.9 mm; base rounded; margins transparent, serrate; apex acute. Median leaves lanceolate, 0.8–1.2 × 0.3–0.35 mm; base oblique; margins transparent, serrate; apex bristled; bristle to 1/3 length of leaf. Strobili solitary, 2–3 mm; sporophylls ovate-lanceolate, strongly keeled toward tip, keel dentate, base glabrous, margins serrate, apex long-acuminate.


Habitat: Hammocks and sink holes in limestone soil
Elevation: 0 m

Distribution

V2 21-distribution-map.gif

Fla., West Indies in the Bahamas.

Discussion

Selaginella eatonii is a minute species, easy to distinguish by its long-bristled leaf apex, iridescent leaf surface, and somewhat transparent sporophylls on the underside of the stem. It does not have any close relatives among the species in the flora. Selaginella eatonii may best be placed within subg. Heterostachys, with which it shares flattened strobili, keeled sporophylls, and a partial laminar flap on the sporophylls. Selaginella eatonii does not have strongly dimorphic sporophylls or a very well-defined laminar flap, and therefore I prefer to treat it here with the other heterophyllous species of subg. Stachygynandrum until a detailed study of subg. Heterostachys can be made.

Of conservation concern.

Selected References

None.

Lower Taxa

None.