Difference between revisions of "Pilularia americana"

A. Braun

Monatsber. Königl. Preuss. Akad. Wiss. Berlin 1863: 435. 1864.

Common names: American pillwort
Treatment appears in FNA Volume 2.
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--><span class="statement" id="st-d0_s0" data-properties="clone density"><b>Plants </b>forming dense clones.</span> <span class="statement" id="st-d0_s1" data-properties="leaf some measurement;leaf pubescence"><b>Leaves </b>1.6–10.2 cm, sparsely pubescent.</span> <span class="statement" id="st-d0_s2" data-properties="sporocarp stalk fixation;sporocarp stalk some measurement"><b>Sporocarp </b>stalks attached at base of leaf, 1–3 mm.</span> <span class="statement" id="st-d0_s3" data-properties="sporocarp shape;sporocarp diameter;hair growth form"><b>Sporocarps </b>globose, 1.6–2.7 mm diam., covered with matted hairs until mature;</span> <span class="statement" id="st-d0_s4" data-properties="raphe size;tooth count">raphe minute, teeth lacking.</span> <span class="statement" id="st-d0_s5" data-properties="sorus count"><b>Sori </b>4.</span><!--
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--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>forming dense clones. <b>Leaves</b> 1.6–10.2 cm, sparsely pubescent. <b>Sporocarp</b> stalks attached at base of leaf, 1–3 mm. <b>Sporocarps</b> globose, 1.6–2.7 mm diam., covered with matted hairs until mature; raphe minute, teeth lacking. <b>Sori</b> 4.</span><!--
  
 
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-->{{Treatment/Body
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|phenology=Sporocarps produced spring–fall (Apr–Oct).
 
|habitat=In shallow water of ponds and temporary pools and on reservoir margins
 
|habitat=In shallow water of ponds and temporary pools and on reservoir margins
 
|elevation=50–600 m
 
|elevation=50–600 m
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|basionyms=
 
|basionyms=
 
|family=Marsileaceae
 
|family=Marsileaceae
 +
|phenology=Sporocarps produced spring–fall (Apr–Oct).
 
|habitat=In shallow water of ponds and temporary pools and on reservoir margins
 
|habitat=In shallow water of ponds and temporary pools and on reservoir margins
 
|elevation=50–600 m
 
|elevation=50–600 m
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|publication year=1864
 
|publication year=1864
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V2/V2_745.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V2/V2_745.xml
 
|genus=Pilularia
 
|genus=Pilularia
 
|species=Pilularia americana
 
|species=Pilularia americana
|clone density=dense
 
|hair growth form=matted
 
|leaf pubescence=pubescent
 
|leaf some measurement=1.6cm;10.2cm
 
|raphe size=minute
 
|sorus count=4
 
|sporocarp diameter=1.6mm;2.7mm
 
|sporocarp shape=globose
 
|sporocarp stalk fixation=attached
 
|sporocarp stalk some measurement=1mm;3mm
 
|tooth count=lacking
 
 
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-->[[Category:Treatment]][[Category:Pilularia]]
 
-->[[Category:Treatment]][[Category:Pilularia]]

Revision as of 13:27, 27 July 2019

Plants forming dense clones. Leaves 1.6–10.2 cm, sparsely pubescent. Sporocarp stalks attached at base of leaf, 1–3 mm. Sporocarps globose, 1.6–2.7 mm diam., covered with matted hairs until mature; raphe minute, teeth lacking. Sori 4.


Phenology: Sporocarps produced spring–fall (Apr–Oct).
Habitat: In shallow water of ponds and temporary pools and on reservoir margins
Elevation: 50–600 m

Distribution

V2 745-distribution-map.gif

Ala., Ark., Calif., Ga., Kans., Mo., Nebr., N.C., Okla., Oreg., S.C., Tenn., Tex., Mexico in Baja California.

Discussion

Pilularia americana also has been reported from Alaska. I have seen no vouchers from Alaska, nor have I seen the Oregon vouchers. Because of its grasslike appearance and subterranean sporocarps, P. americana is probably overlooked and more common than records indicate. The telltale circinate vernation of the leaves is the best characteristic for distinguishing it from similar plants.

Pilularia caroliniana A. Braun, an invalid name, has been used for this species and may appear on specimens.

Selected References

None.

Lower Taxa

None.
... more about "Pilularia americana"
David M. Johnson +
A. Braun +
American pillwort +
Ala. +, Ark. +, Calif. +, Ga. +, Kans. +, Mo. +, Nebr. +, N.C. +, Okla. +, Oreg. +, S.C. +, Tenn. +, Tex. +  and Mexico in Baja California. +
50–600 m +
In shallow water of ponds and temporary pools and on reservoir margins +
Sporocarps produced spring–fall (Apr–Oct). +
Monatsber. Königl. Preuss. Akad. Wiss. Berlin +
Pilularia americana +
Pilularia +
species +