View source for Asplenium montanum

{{Treatment/ID
|accepted_name=Asplenium montanum
|accepted_authority=Willdenow
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=5(1): 342. 1810
|year=1810
}}
|common_names=Mountain spleenwort
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Aspleniaceae;Asplenium;Asplenium montanum
|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 montanum]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="root reproduction"><b>Roots </b>proliferous.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem orientation;stem architecture"><b>Stems </b>horizontal, often arching upward, unbranched (although clusters of stems often form from root proliferations, giving false appearance of single much-branched stem);</span> <span class="statement" id="st-d0_s2" data-properties="scale coloration;scale shape;scale length;scale width;margin architecture or shape">scales dark-brown throughout, narrowly deltate, 2–4 × 0.2–0.4 mm, margins entire.</span> <span class="statement" id="st-d0_s3" data-properties="leaf architecture"><b>Leaves </b>monomorphic.</span> <span class="statement" id="st-d0_s4" data-properties="petiole coloration;petiole reflectance;petiole coloration;petiole some measurement;petiole length"><b>Petiole </b>dark-brown to purplish black, lustrous proximally, fading to green distally, 2–11 cm, 1/2–1 1/2 length of blade;</span> <span class="statement" id="st-d0_s5" data-properties="scale coloration;scale shape;hair size">indument of blackish, narrowly lanceolate scales only at very base and of minute hairs.</span> <span class="statement" id="st-d0_s6" data-properties="blade shape;blade shape;blade length;blade atypical width;blade width;blade width;blade pubescence"><b>Blade </b>deltate to lanceolate, 1–2-pinnate-pinnatifid, 2–11 × 1–7 (–10) cm, thick, essentially glabrous;</span> <span class="statement" id="st-d0_s7" data-properties="base shape;base shape">base truncate or obtuse;</span> <span class="statement" id="st-d0_s8" data-properties="apex shape;apex architecture">apex acuminate to acute, not rooting.</span> <span class="statement" id="st-d0_s9" data-properties="rachis coloration;rachis reflectance;rachis pubescence"><b>Rachis </b>green throughout, dull, sparsely pubescent.</span> <span class="statement" id="st-d0_s10" data-properties="pinna shape;pair quantity"><b>Pinnae </b>in 4–10 pairs, deltate to lanceolate;</span> <span class="statement" id="st-d0_s11" data-properties="proximal pinna length;proximal pinna width">proximal (longest) pinnae 6–35 × 4–20 mm;</span> <span class="statement" id="st-d0_s12" data-properties="base shape">base obtuse to acute;</span> <span class="statement" id="st-d0_s13" data-properties="margin shape">margins coarsely incised;</span> <span class="statement" id="st-d0_s14" data-properties="apex shape">apex acute to rounded.</span> <span class="statement" id="st-d0_s15" data-properties="vein fusion;vein prominence"><b>Veins </b>free, obscure.</span> <span class="statement" id="st-d0_s16" data-properties="sorus quantity;side orientation;side orientation"><b>Sori </b>1–15 per pinna, on both basiscopic and acroscopic sides.</span> <span class="statement" id="st-d0_s17" data-properties=""><b>Spores </b>64 per sporangium.</span> <span class="statement" id="st-d0_s18" data-properties="spore quantity;2n chromosome quantity">2n = 72.</span><!--

-->{{Treatment/Body
|habitat=Crevices in sandstone or other acidic rocks
|elevation=0–2000 m
|distribution=Ala.;Conn.;Ga.;Ind.;Ky.;Md.;Mass.;Mo.;N.J.;N.Y.;N.C.;Ohio;Pa.;R.I.;S.C.;Tenn.;Va.;W.Va.
|discussion=<p>Asplenium montanum occurs principally in the Appalachian region, with outlying localities in the Shawnee Hills of western Kentucky (R. Cranfill 1980) and adjacent Indiana (D. M. Smith 1956). A report of its disjunct occurrence on the northern edge of the Ozarks is based on a single specimen whose label indicates the collection locality near Graham Cave, Montgomery County, Missouri. Efforts by several botanists to relocate the population have failed. Reports of a disjunct station in the upper peninsula of Michigan are doubtful.</p><!--
--><p>Asplenium montanum is an ecological specialist. It is typically the sole vascular plant species in the siliceous rock crevices in which it is found. It may occur, however, with two allotetraploid species, A. bradleyi and A. pinnatifidum, which were derived from hybrids of A. montanum with A. platyneuron and A. rhizophyllum, respectively. In addition, A. montanum crosses frequently with A. pinnatifidum producing A. × trudellii and rarely with allotetraploid individuals of A. bradleyi producing A. × wherryi.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Asplenium montanum
|authority=Willdenow
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Aspleniaceae
|habitat=Crevices in sandstone or other acidic rocks
|elevation=0–2000 m
|distribution=Ala.;Conn.;Ga.;Ind.;Ky.;Md.;Mass.;Mo.;N.J.;N.Y.;N.C.;Ohio;Pa.;R.I.;S.C.;Tenn.;Va.;W.Va.
|reference=None
|publication title=Sp. Pl.
|publication year=1810
|special status=Illustrated;Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V2/V2_444.xml
|genus=Asplenium
|species=Asplenium montanum
|2n chromosome quantity=72
|apex architecture=not rooting
|apex shape=acute;rounded
|base shape=obtuse;acute
|blade atypical width=7cm;10cm
|blade length=2cm;11cm
|blade pubescence=glabrous
|blade shape=1-2-pinnate-pinnatifid;deltate;lanceolate
|blade width=thick;1cm;7cm
|hair size=minute
|leaf architecture=monomorphic
|margin architecture or shape=entire
|margin shape=incised
|pair quantity=4;10
|petiole coloration=fading;green
|petiole length=1/2 length of blade;1-1/2 length of blade
|petiole reflectance=lustrous
|petiole some measurement=2cm;11cm
|pinna shape=deltate;lanceolate
|proximal pinna length=6mm;35mm
|proximal pinna width=4mm;20mm
|rachis coloration=green
|rachis pubescence=pubescent
|rachis reflectance=dull
|root reproduction=proliferous
|scale coloration=blackish;dark-brown
|scale length=2mm;4mm
|scale shape=lanceolate;deltate
|scale width=0.2mm;0.4mm
|side orientation=acroscopic;basiscopic
|sorus quantity=1;15
|spore quantity=64
|stem architecture=unbranched
|stem orientation=arching;horizontal
|vein fusion=free
|vein prominence=obscure
}}<!--

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