View source for Asplenium heterochroum

{{Treatment/ID
|accepted_name=Asplenium heterochroum
|accepted_authority=Kunze
|publications={{Treatment/Publication
|title=Linnaea
|place=9: 67. 1834
|year=1834
}}
|common_names=Varicolored spleenwort
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Asplenium muticum
|authority=Gilbert
}}
|hierarchy=Aspleniaceae;Asplenium;Asplenium heterochroum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Aspleniaceae]]</div><div class="higher-taxon"><small>genus</small>[[Asplenium]]</div><div class="higher-taxon"><small>species</small>[[Asplenium heterochroum]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Roots </b>not proliferous. <b>Stems</b> erect or ascending, rarely branched; scales black throughout, linear-lanceolate, 2–3 × 0.2–0.4 mm, margin entire, apex attenuate. <b>Leaves</b> monomorphic. <b>Petiole</b> black or purplish black throughout, lustrous, 0.3–5 cm, 1/4–1/15 length of blade; indument of black filiform scales at base. <b>Blade</b> linear or narrowly oblanceolate, 1-pinnate throughout, 6–22(–37) × 1–1.8(–2.3) cm, thin, glabrous; base tapered; apex acute, not rooting. <b>Rachis</b> black throughout, lustrous, glabrous. <b>Pinnae</b> in 15–40 pairs, oblong; medial pinnae somewhat asymmetric, oblong, 4–10 × 2–4(–5) mm; base acute, acroscopically enlarged; margins serrate to crenate, lobed; apex obtuse. <b>Veins</b> free, evident. <b>Sori</b> 3–6 pairs per pinna, on both basiscopic and acroscopic sides of pinnae. <b>Spores</b> 64 per sporangium. <b>2n</b> = 144, 216.</span><!--

-->{{Treatment/Body
|habitat=Sinkholes, limestone rocks in shady hammocks, masonry
|elevation=0–50 m
|distribution=Fla.;Ga.;Mexico;West Indies in Cuba;Puerto Rico;Bermuda;Central America in Belize.
|discussion=<p>The tetraploid cytotype (4 x) of <i>Asplenium heterochroum</i> hybridizes with <i>A. resiliens</i> (3 x) to produce <i>A.</i> × <i>heteroresiliens</i> (5 x). It is extremely rare and local, known in northern peninsular Florida from Alachua, Citrus, Columbia, Jackson, and Marion counties.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Asplenium heterochroum
|author=
|authority=Kunze
|rank=species
|parent rank=genus
|synonyms=Asplenium muticum
|basionyms=
|family=Aspleniaceae
|habitat=Sinkholes, limestone rocks in shady hammocks, masonry
|elevation=0–50 m
|distribution=Fla.;Ga.;Mexico;West Indies in Cuba;Puerto Rico;Bermuda;Central America in Belize.
|reference=None
|publication title=Linnaea
|publication year=1834
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V2/V2_599.xml
|genus=Asplenium
|species=Asplenium heterochroum
}}<!--

-->[[Category:Treatment]][[Category:Asplenium]]