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| − | --><span class="statement" id="st-d0_s0" data-properties="root reproduction"><b>Roots </b>not proliferous.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem orientation;stem orientation;stem architecture"><b>Stems </b>short-creeping to erect, frequently branched;</span> <span class="statement" id="st-d0_s2" data-properties="scale coloration;scale shape;scale length;scale width;margin architecture or shape">scales dark reddish-brown, narrowly deltate, 3–5 × 0.3–0.5 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 coloration;petiole coloration;petiole coloration;petiole reflectance;petiole some measurement;petiole length"><b>Petiole </b>dark reddish-brown at base, fading to green in distal 1/3–1/2, lustrous, 1–10 cm, 1/5–1 times length of blade;</span> <span class="statement" id="st-d0_s5" data-properties="scale coloration;scale shape">indument of dark reddish-brown, narrowly deltate scales at very base, grading distally into hairs.</span> <span class="statement" id="st-d0_s6" data-properties="blade shape;blade architecture or course;blade shape;blade shape;blade atypical length;blade length;blade atypical width;blade width;blade width;blade pubescence;pair count"><b>Blade </b>narrowly deltate, often irregular in outline, pinnatifid or often with single pair of pinnae proximally, 2–17 (–20) × 1–4 (–13) cm, thick, pubescent abaxially only;</span> <span class="statement" id="st-d0_s7" data-properties="base shape;base shape;base shape;base shape;base shape">base truncate, cordate, or auriculate;</span> <span class="statement" id="st-d0_s8" data-properties="apex shape;apex shape;apex shape;bud reproduction;bud count">apex acute to long-attenuate, proliferous bud very rare, not known to root in nature.</span> <span class="statement" id="st-d0_s9" data-properties="rachis coloration;rachis condition;rachis coloration;rachis reflectance"><b>Rachis </b>green, sometimes drying to tan, dull;</span> <span class="statement" id="st-d0_s10" data-properties="hair arrangement;hair size">hairs on abaxial surface only, scattered, minute.</span> <span class="statement" id="st-d0_s11" data-properties="pinna count;pinna shape;pinna shape;pinna shape;pinna atypical length;pinna length;pinna atypical width;pinna width"><b>Pinnae </b>0–1 pair, ovate to deltate, sometimes narrowly so, 5–20 (–90) × 0.4–1 (–1.2) mm;</span> <span class="statement" id="st-d0_s12" data-properties="base shape;base shape;base shape">base truncate to acute;</span> <span class="statement" id="st-d0_s13" data-properties="margin shape;margin shape;margin shape">margins crenate to serrate;</span> <span class="statement" id="st-d0_s14" data-properties="apex shape;apex shape;apex shape">apex rounded to attenuate.</span> <span class="statement" id="st-d0_s15" data-properties="vein fusion;vein prominence"><b>Veins </b>free (rarely anastomosing), obscure.</span> <span class="statement" id="st-d0_s16" data-properties="sorus atypical count;sorus count;sorus arrangement"><b>Sori </b>1–6 (–40+) per segment, usually confluent with age.</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 count;2n chromosome count">2n = 144.</span><!-- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Roots </b>not proliferous. <b>Stems</b> short-creeping to erect, frequently branched; scales dark reddish brown, narrowly deltate, 3–5 × 0.3–0.5 mm, margins entire. <b>Leaves</b> monomorphic. <b>Petiole</b> dark reddish brown at base, fading to green in distal 1/3–1/2, lustrous, 1–10 cm, 1/5–1 times length of blade; indument of dark reddish brown, narrowly deltate scales at very base, grading distally into hairs. <b>Blade</b> narrowly deltate, often irregular in outline, pinnatifid or often with single pair of pinnae proximally, 2–17(–20) × 1–4(–13) cm, thick, pubescent abaxially only; base truncate, cordate, or auriculate; apex acute to long-attenuate, proliferous bud very rare, not known to root in nature. <b>Rachis</b> green, sometimes drying to tan, dull; hairs on abaxial surface only, scattered, minute. <b>Pinnae</b> 0–1 pair, ovate to deltate, sometimes narrowly so, 5–20(–90) × 0.4–1(–1.2) mm; base truncate to acute; margins crenate to serrate; apex rounded to attenuate. <b>Veins</b> free (rarely anastomosing), obscure. <b>Sori</b> 1–6(–40+) per segment, usually confluent with age. <b>Spores</b> 64 per sporangium. <b>2n</b> = 144.</span><!-- |
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| | |publication year=1818 | | |publication year=1818 |
| | |special status= | | |special status= |
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V2/V2_596.xml | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V2/V2_596.xml |
| | |genus=Asplenium | | |genus=Asplenium |
| | |species=Asplenium pinnatifidum | | |species=Asplenium pinnatifidum |
| − | |2n chromosome count=144
| |
| − | |apex shape=rounded;attenuate
| |
| − | |base shape=truncate;acute
| |
| − | |blade architecture or course=irregular
| |
| − | |blade atypical length=17cm;20cm
| |
| − | |blade atypical width=4cm;13cm
| |
| − | |blade length=2cm;17cm
| |
| − | |blade pubescence=pubescent
| |
| − | |blade shape=often;pinnatifid;deltate
| |
| − | |blade width=thick;1cm;4cm
| |
| − | |bud count=rare
| |
| − | |bud reproduction=proliferous
| |
| − | |hair arrangement=scattered
| |
| − | |hair size=minute
| |
| − | |leaf architecture=monomorphic
| |
| − | |margin architecture or shape=entire
| |
| − | |margin shape=crenate;serrate
| |
| − | |pair count=single
| |
| − | |petiole coloration=fading;green
| |
| − | |petiole length=1/5-1 times length of blade
| |
| − | |petiole reflectance=lustrous
| |
| − | |petiole some measurement=1cm;10cm
| |
| − | |pinna atypical length=20mm;90mm
| |
| − | |pinna atypical width=1mm;1.2mm
| |
| − | |pinna count=0;1
| |
| − | |pinna length=5mm;20mm
| |
| − | |pinna shape=ovate;deltate
| |
| − | |pinna width=0.4mm;1mm
| |
| − | |rachis coloration=tan;green
| |
| − | |rachis condition=drying
| |
| − | |rachis reflectance=dull
| |
| − | |root reproduction=not proliferous
| |
| − | |scale coloration=dark reddish-brown;dark reddish-brown
| |
| − | |scale length=3mm;5mm
| |
| − | |scale shape=deltate;deltate
| |
| − | |scale width=0.3mm;0.5mm
| |
| − | |sorus arrangement=confluent
| |
| − | |sorus atypical count=6;40
| |
| − | |sorus count=1;6
| |
| − | |spore count=64
| |
| − | |stem architecture=branched
| |
| − | |stem orientation=short-creeping;erect
| |
| − | |vein fusion=free
| |
| − | |vein prominence=obscure
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| | -->[[Category:Treatment]][[Category:Asplenium]] | | -->[[Category:Treatment]][[Category:Asplenium]] |
Roots not proliferous. Stems short-creeping to erect, frequently branched; scales dark reddish brown, narrowly deltate, 3–5 × 0.3–0.5 mm, margins entire. Leaves monomorphic. Petiole dark reddish brown at base, fading to green in distal 1/3–1/2, lustrous, 1–10 cm, 1/5–1 times length of blade; indument of dark reddish brown, narrowly deltate scales at very base, grading distally into hairs. Blade narrowly deltate, often irregular in outline, pinnatifid or often with single pair of pinnae proximally, 2–17(–20) × 1–4(–13) cm, thick, pubescent abaxially only; base truncate, cordate, or auriculate; apex acute to long-attenuate, proliferous bud very rare, not known to root in nature. Rachis green, sometimes drying to tan, dull; hairs on abaxial surface only, scattered, minute. Pinnae 0–1 pair, ovate to deltate, sometimes narrowly so, 5–20(–90) × 0.4–1(–1.2) mm; base truncate to acute; margins crenate to serrate; apex rounded to attenuate. Veins free (rarely anastomosing), obscure. Sori 1–6(–40+) per segment, usually confluent with age. Spores 64 per sporangium. 2n = 144.
Habitat: Cliffs, ledges, and boulders of sandstone and other acidic rocks
Elevation: 0–1000 m
Distribution
Ala., Ark., D.C., Ga., Ill., Ind., Ky., Md., Miss., Mo., N.J., N.C., Ohio, Okla., Pa., S.C., Tenn., Va., W.Va., Wis.
Discussion
Asplenium pinnatifidum is an allotetraploid derived from the hybrid A. montanum × rhizophyllum. Although isozyme studies indicate that this species originated at more than one site (C. R. Werth et al. 1985b), the sterile diploid hybrid is unknown. The species is uncommon in the eastern part of the Appalachian region and becomes much more frequent in the Cumberland and Interior Low plateaus, extending westward into the Ozarks and Ouachitas. It is disjunct in the Driftless Area of Wisconsin in Iowa County (M. G. and R. P. Hanson 1979). It crosses frequently with A. montanum (producing A. × trudellii Wherry), with A. bradleyi (producing A. × gravesii Maxon), with A. platyneuron (producing A. × kentuckiense McCoy), and with A. trichomanes (producing A. × herb-wagneri W. C. Taylor & Mohlenbrock).
Selected References
None.
