View source for Campylium

{{Treatment/ID
|accepted_name=Campylium
|accepted_authority=(Sullivant) Mitten
|publications={{Treatment/Publication
|title=J. Linn. Soc., Bot.
|place=12: 631. 1869
|year=1869
}}
|basionyms={{Treatment/ID/Basionym
|name=Hypnum sect. Campylium
|authority=Sullivant
|publication_title=in A. Gray, Manual ed.
|publication_place=2, 677. 1856
}}
|synonyms=
|hierarchy=Amblystegiaceae;Campylium
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Amblystegiaceae]]</div><div class="higher-taxon"><small>genus</small>[[Campylium]]</div></div>
|etymology=Greek campylos, curved, alluding to reflexed leaves
|volume=Volume 28
|mention_page=page 265, 288, 290, 291, 292, 295, 305, 306, 315, 529, 549, 560, 645
|treatment_page=page 287
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>small or medium-sized, green, yellowish green, golden brown, golden yellow, or brownish. <b>Stems</b> unbranched, irregularly branched, or irregularly pinnate; hyalodermis absent, central strand absent; paraphyllia absent or sometimes present; rhizoids or rhizoid initials on stem or abaxial costa insertion, rarely forming tomentum, slightly or strongly branched, smooth or slightly warty-papillose; axillary hair distal cells 1–5, hyaline. <b>Stem</b> leaves erect, spreading, or ± squarrose, occasionally distinctly falcate-secund, cordate, cordate-ovate, ovate, or rounded-triangular, not plicate, 1–4.6 mm; base not or hardly decurrent; margins plane, entire or slightly sinuate, limbidia absent; apex acuminate, acumen differentiated or not, furrowed; costa double or single, ending below mid leaf; alar cells differentiated, rectangular, quadrate, or sometimes transversely rectangular or short-rectangular, strongly inflated, hyaline, widest cells 17–30 µm wide, region distinct, quadrate, broadly ovate, ovate, or rectangular, along basal margins, reaching from margin 15–60% distance to costa at insertion; medial laminal cells linear, rarely shortly so; marginal cells 1-stratose. <b>Sexual</b> condition dioicous or autoicous. <b>Capsule</b> horizontal, cylindric, curved; peristome perfect; exostome margins dentate or slightly dentate distally; endostome cilia usually 1–3, well developed, nodulose. <b>Spores</b> (10–)11–24 µm.</span><!--

-->{{Treatment/Body
|distribution=North America;Mexico;West Indies (Haiti);Central America (Guatemala);Eurasia;Pacific Islands (New Zealand).
|discussion=<p>Species 4 (4 in the flora).</p><!--
--><p><i>Campylium</i> occurs in more or less mineral-rich wetlands that are mostly permanently wet or moist. Differences between members of this genus and those of 6. <i>Campyliadelphus</i> and 18. <i>Campylophyllum</i> are discussed with the latter two genera. Members of <i>Drepanocladus</i> with similarly oriented leaves have transversely triangular alar groups that extend from the margin 60–100% of the distance to the costa at the insertion. Other species of <i>Drepanocladus</i> may have approximately quadrate alar groups, but not ovate or rectangular and extending up the leaf margin as in <i>Campylium</i>. The typification of <i>Campylium</i> was discussed by P. Isoviita and L. Hedenäs (1997).</p>
|tables=
|references={{Treatment/Reference
|id=andrews1957a
|text=Andrews, A. L. 1957. Taxonomic notes. XIII. The genus Campylium. Bryologist 60: 127–135.
}}{{Treatment/Reference
|id=hedenas1997a
|text=Hedenäs, L. 1997. A partial generic revision of Campylium (Musci). Bryologist 100: 65–88.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Sexual condition autoicous; stem leaves erect or spreading; bases subsheathing, broadly cordate-ovate, ovate, or narrowly ovate; acumina when differentiated constituting at most 33% leaf length
|[[#key-0-2| > 2]]
|-id=key-0-1
|1
|Sexual condition dioicous; stem leaves spreading or ± squarrose; bases erect to erect-spreading, cordate or rounded-triangular; acumina frequently differentiated, constituting (33-)40-77% leaf length
|[[#key-0-3| > 3]]
|-id=key-0-2
|2
|Stem leaves slightly concave, 1.8-2.4 mm; bases ± broadly cordate-ovate; leaves gradually narrowed to apex; acumina not differentiated.
|[[Campylium laxifolium|Campylium laxifolium]]
|-id=key-0-2
|2
|Stem leaves concave or strongly so, 2.1-4.6 mm; bases ovate or narrowly ovate; leaves ± suddenly or more gradually narrowed to apex; acumina frequently differentiated.
|[[Campylium longicuspis|Campylium longicuspis]]
|-id=key-0-3
|3
|Stems erect, irregularly branched or sometimes irregularly pinnate; stem leaves 1.7-2.8 × 0.7-1.2 mm; acumina constituting 40-65% (rarely 33-40% in Arctic plants) leaf length; paraphyllia absent.
|[[Campylium stellatum|Campylium stellatum]]
|-id=key-0-3
|3
|Stems creeping, irregularly pinnate; stem leaves 1-2.3 × 0.4-1 mm; acumina constituting 55-77% leaf length; paraphyllia sometimes present.
|[[Campylium protensum|Campylium protensum]]
|}
</div></div><!--

-->{{#Taxon:
name=Campylium
|author=Lars Hedenäs
|authority=(Sullivant) Mitten
|rank=genus
|parent rank=family
|synonyms=
|basionyms=Hypnum sect. Campylium
|family=Amblystegiaceae
|distribution=North America;Mexico;West Indies (Haiti);Central America (Guatemala);Eurasia;Pacific Islands (New Zealand).
|reference=andrews1957a;hedenas1997a
|publication title=J. Linn. Soc., Bot.
|publication year=1869
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V28/V28_448.xml
|genus=Campylium
}}<!--

-->[[Category:Treatment]][[Category:Amblystegiaceae]]