View source for Hygroamblystegium varium subsp. noterophilum

{{Treatment/ID
|accepted_name=Hygroamblystegium varium subsp. noterophilum
|accepted_authority=(Sullivant & Lesquereux) Vanderpoorten & Hedenas
|publications={{Treatment/Publication
|title=J. Bryol.
|place=31: 130. 2009
|year=2009
}}
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Hypnum noterophilum
|authority=(Sullivant & Lesquereux) Holzinger
|rank=species
|publication_title=in A. Gray, Manual ed.
|publication_place=2, 678. 1856
}}
|synonyms={{Treatment/ID/Synonym
|name=Amblystegium fluviatile var. noterophilum
|authority=(Sullivant & Lesquereux) Flowers
|rank=variety
}} {{Treatment/ID/Synonym
|name=A. noterophilum
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Hygroamblystegium noterophilum
|authority=
|rank=species
}}
|hierarchy=Amblystegiaceae;Hygroamblystegium;Hygroamblystegium varium;Hygroamblystegium varium subsp. noterophilum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Amblystegiaceae]]</div><div class="higher-taxon"><small>genus</small>[[Hygroamblystegium]]</div><div class="higher-taxon"><small>species</small>[[Hygroamblystegium varium]]</div><div class="higher-taxon"><small>subspecies</small>[[Hygroamblystegium varium subsp. noterophilum]]</div></div>
|volume=Volume 28
|mention_page=page 302, 303, 305
|treatment_page=page 304
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>extremely large. <b>Stems</b> to 15 cm; central strand present. <b>Stem</b> leaves 1.2–2.4 × 0.3–1 mm, lamina sometimes partially 2-stratose, especially at base near costa; margins entire or nearly so; costa excurrent, 110–140 µm wide at base; medial laminal cells 20–45 × 6–10 µm.</span><!--

-->{{Treatment/Body
|habitat=Oligotrophic, calcareous spring areas
|elevation=low to high elevations (0-2500 m)
|distribution=B.C.;Ont.;Alaska;Ill.;Iowa;Mich.;Minn.;Mo.;Mont.;Pa.;S.Dak.;Wis.;Wyo.
|discussion=<p>Subspecies noterophilum is morphologically characterized by its large size, broad, excurrent costa ending in a stout point, and partly 2-stratose lamina. This taxon is restricted to areas of oligotrophic, calcareous springs. The leaves of submerged stems are frequently quite different in shape from those of emergent stems and branches, suggesting that at least some of the morphological characteristics may be altered depending on water availability. Current phylogenetic analyses failed to demonstrate the genetic integrity of the taxon. The morphology of populations from calcareous springs is typically very different from that of terrestrial or subaquatic populations in many bryophyte species. For example, in <i>Cratoneuron filicinum</i> (Hedwig) Spruce, such expressions are so different that they were previously interpreted as <i>Hygroamblystegium</i> tenax var. spinifolium (Schimper) Jennings. Therefore, pending additional evidence, <i></i>subsp.<i> noterophilum</i> is treated here as a subspecies of <i>H. varium</i>.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Hygroamblystegium varium subsp. noterophilum
|authority=(Sullivant & Lesquereux) Vanderpoorten & Hedenas
|rank=subspecies
|parent rank=species
|synonyms=Amblystegium fluviatile var. noterophilum;A. noterophilum;Hygroamblystegium noterophilum
|basionyms=Hypnum noterophilum
|family=Amblystegiaceae
|habitat=Oligotrophic, calcareous spring areas
|elevation=low to high elevations (0-2500 m)
|distribution=B.C.;Ont.;Alaska;Ill.;Iowa;Mich.;Minn.;Mo.;Mont.;Pa.;S.Dak.;Wis.;Wyo.
|reference=None
|publication title=J. Bryol.
|publication year=2009
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V28/V28_476.xml
|genus=Hygroamblystegium
|species=Hygroamblystegium varium
|subspecies=Hygroamblystegium varium subsp. noterophilum
}}<!--

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