View source for Adiantum tenerum

{{Treatment/ID
|accepted_name=Adiantum tenerum
|accepted_authority=Swartz
|publications={{Treatment/Publication
|title=Prodr.
|place=135. 1788
|year=1788
}}
|common_names=Brittle maidenhair
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms=
|synonyms=
|hierarchy=Pteridaceae;Adiantum;Adiantum tenerum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Pteridaceae]]</div><div class="higher-taxon"><small>genus</small>[[Adiantum]]</div><div class="higher-taxon"><small>species</small>[[Adiantum tenerum]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>short-creeping; scales bicolored, centers dark reddish brown, margins pale tan, erose-ciliate. <b>Leaves</b> arching or sometimes pendent, closely spaced, 20–110 cm. <b>Petiole</b> 1–3 mm diam., glabrous, occasionally glaucous. <b>Blade</b> trowel-shaped, pinnate, 12–60 × 12–60 cm, gradually reduced distally, glabrous; proximal pinnae 3-pinnate; rachis straight, glabrous, not glaucous. <b>Segment</b> stalks 1–5 mm, with dark color ending abruptly at segment base, terminating in cupulelike swelling at base of segment (unlike any other species of <i>Adiantum</i> in the flora). <b>Ultimate</b> segments fan-shaped or rhombic, about as long as broad; base cuneate; apex rounded or acute, lobed, lobes separated by narrow incisions 0.5 mm wide. <b>Indusia</b> transversely oblong to crescent-shaped, 0.5–2 mm, glabrous. <b>Spores</b> mostly 40–58 µm diam. <b>2n</b> = 60.</span><!--

-->{{Treatment/Body
|phenology=Sporulating throughout the year.
|habitat=Restricted to moist, shaded, limestone ledges, sink walls, and grottoes in the flora
|elevation=0–50 m
|distribution=Fla.;e;s Mexico;Central America in Guatemala;Honduras;Nicaragua;Costa Rica;South America in Venezuela.
|discussion=<p><i>Adiantum tenerum</i> is readily distinguished from other species in the flora by the ultimate segments conspicuously articulate to the stalks.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Adiantum tenerum
|authority=Swartz
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Pteridaceae
|phenology=Sporulating throughout the year.
|habitat=Restricted to moist, shaded, limestone ledges, sink walls, and grottoes in the flora
|elevation=0–50 m
|distribution=Fla.;e;s Mexico;Central America in Guatemala;Honduras;Nicaragua;Costa Rica;South America in Venezuela.
|reference=None
|publication title=Prodr.
|publication year=1788
|special status=Illustrated
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V2/V2_434.xml
|genus=Adiantum
|species=Adiantum tenerum
}}<!--

-->[[Category:Treatment]][[Category:Adiantum]]