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| − | --><span class="statement" id="st-d0_s0" data-properties="stem scale orientation;stem scale orientation;stem scale orientation;stem scale coloration"><b>Stem </b>scales loosely appressed to spreading, essentially concolored.</span> <span class="statement" id="st-d0_s1" data-properties="tuber count"><b>Tubers </b>absent.</span> <span class="statement" id="st-d0_s2" data-properties="leaf length;leaf width"><b>Leaves </b>8–30 × 0.5–1.3 dm.</span> <span class="statement" id="st-d0_s3" data-properties="petiole some measurement;petiole architecture or pubescence"><b>Petiole </b>1.2–5 dm, moderately to densely scaly;</span> <span class="statement" id="st-d0_s4" data-properties="scale orientation;scale coloration;scale coloration;scale coloration">scales spreading, reddish to light-brown throughout.</span> <span class="statement" id="st-d0_s5" data-properties="blade pubescence;blade pubescence;blade pubescence;blade pubescence;blade pubescence;hair coloration;hair coloration;hair coloration;hair some measurement"><b>Blade </b>moderately scaly, glabrous to occasionally pubescent abaxially, glabrous adaxially, hairs pale to light-brown, 0.2–0.7 mm.</span> <span class="statement" id="st-d0_s6" data-properties="rachis some measurement;point some measurement;point arrangement"><b>Rachis </b>5–26 dm, points of pinna attachment 9–25 mm apart;</span> <span class="statement" id="st-d0_s7" data-properties="scale arrangement;scale coloration">scales scattered, brown throughout.</span> <span class="statement" id="st-d0_s8" data-properties="central pinna shape;central pinna shape;central pinna shape;central pinna length;central pinna width;base architecture or shape;base shape;base shape;lobe orientation;lobe shape;lobe shape;lobe shape;margin architecture or shape;apex shape;apex shape;apex shape;apex shape"><b>Central </b>pinnae narrowly deltate to oblong-deltate, 3.6–9 × 0.7–2 cm, base truncate, sometimes rounded basiscopically, barely auriculate acroscopically, acroscopic lobe obtuse to acute, margins serrulate, apex narrowly acute to attenuate, falcate to slightly so;</span> <span class="statement" id="st-d0_s9" data-properties="costa pubescence;hair coloration;hair orientation;hair some measurement">costae adaxially sparsely pubescent, hairs pale, erect, 0.1–0.5 mm.</span> <span class="statement" id="st-d0_s10" data-properties="sinus size or width"><b>Indusia </b>horseshoe-shaped to circular, attached at narrow sinus or peltate, 0.9–1.1 mm wide.</span> <span class="statement" id="st-d0_s11" data-properties="indusium shape;indusium shape;indusium shape;indusium fixation;indusium architecture;indusium width;2n chromosome count">2n = 164.</span><!-- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Stem </b>scales loosely appressed to spreading, essentially concolored. <b>Tubers</b> absent. <b>Leaves</b> 8–30 × 0.5–1.3 dm. <b>Petiole</b> 1.2–5 dm, moderately to densely scaly; scales spreading, reddish to light brown throughout. <b>Blade</b> moderately scaly, glabrous to occasionally pubescent abaxially, glabrous adaxially, hairs pale to light brown, 0.2–0.7 mm. <b>Rachis</b> 5–26 dm, points of pinna attachment 9–25 mm apart; scales scattered, brown throughout. <b>Central</b> pinnae narrowly deltate to oblong-deltate, 3.6–9 × 0.7–2 cm, base truncate, sometimes rounded basiscopically, barely auriculate acroscopically, acroscopic lobe obtuse to acute, margins serrulate, apex narrowly acute to attenuate, falcate to slightly so; costae adaxially sparsely pubescent, hairs pale, erect, 0.1–0.5 mm. <b>Indusia</b> horseshoe-shaped to circular, attached at narrow sinus or peltate, 0.9–1.1 mm wide. <b>2n</b> = 164.</span><!-- |
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| | |publication year=1979 | | |publication year=1979 |
| | |special status= | | |special status= |
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V2/V2_126.xml | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V2/V2_126.xml |
| | |genus=Nephrolepis | | |genus=Nephrolepis |
| | |species=Nephrolepis ×averyi | | |species=Nephrolepis ×averyi |
| − | |2n chromosome count=164
| |
| − | |apex shape=falcate;narrowly acute;attenuate
| |
| − | |base architecture or shape=truncate
| |
| − | |base shape=auriculate;rounded
| |
| − | |blade pubescence=glabrous;glabrous;occasionally pubescent abaxially
| |
| − | |central pinna length=3.6cm;9cm
| |
| − | |central pinna shape=narrowly deltate;oblong-deltate
| |
| − | |central pinna width=0.7cm;2cm
| |
| − | |costa pubescence=pubescent
| |
| − | |hair coloration=pale;pale;light-brown
| |
| − | |hair orientation=erect
| |
| − | |hair some measurement=0.1mm;0.5mm
| |
| − | |indusium architecture=peltate
| |
| − | |indusium fixation=attached
| |
| − | |indusium shape=horseshoe-shaped;circular
| |
| − | |indusium width=0.9mm;1.1mm
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| − | |leaf length=8dm;30dm
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| − | |leaf width=0.5dm;1.3dm
| |
| − | |lobe orientation=acroscopic
| |
| − | |lobe shape=obtuse;acute
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| − | |margin architecture or shape=serrulate
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| − | |petiole architecture or pubescence=scaly
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| − | |petiole some measurement=1.2dm;5dm
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| − | |point arrangement=apart
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| − | |point some measurement=9mm;25mm
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| − | |rachis some measurement=5dm;26dm
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| − | |scale arrangement=scattered
| |
| − | |scale coloration=brown;reddish;light-brown
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| − | |scale orientation=spreading
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| − | |sinus size or width=narrow
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| − | |stem scale coloration=concolored
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| − | |stem scale orientation=loosely appressed;spreading
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| − | |tuber count=absent
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| | -->[[Category:Treatment]][[Category:Nephrolepis]] | | -->[[Category:Treatment]][[Category:Nephrolepis]] |
Stem scales loosely appressed to spreading, essentially concolored. Tubers absent. Leaves 8–30 × 0.5–1.3 dm. Petiole 1.2–5 dm, moderately to densely scaly; scales spreading, reddish to light brown throughout. Blade moderately scaly, glabrous to occasionally pubescent abaxially, glabrous adaxially, hairs pale to light brown, 0.2–0.7 mm. Rachis 5–26 dm, points of pinna attachment 9–25 mm apart; scales scattered, brown throughout. Central pinnae narrowly deltate to oblong-deltate, 3.6–9 × 0.7–2 cm, base truncate, sometimes rounded basiscopically, barely auriculate acroscopically, acroscopic lobe obtuse to acute, margins serrulate, apex narrowly acute to attenuate, falcate to slightly so; costae adaxially sparsely pubescent, hairs pale, erect, 0.1–0.5 mm. Indusia horseshoe-shaped to circular, attached at narrow sinus or peltate, 0.9–1.1 mm wide. 2n = 164.
Habitat: Terrestrial or epiphytic in forested, often moist habitats, e.g., swamps, hammocks, or relatively open, disturbed habitats
Elevation: 0 m
Distribution
Fla., Mexico, West Indies.
Discussion
Nephrolepis × averyi is an allotetraploid derived from hybridization between N. biserrata and N. exaltata and is known to occur only in mixed populations of both parent species. It is distinguished from N. exaltata by its sparsely hairy adaxial costae, larger size, and misshapen spores, and from N. biserrata by its falcate pinnae and narrower leaves.
Selected References
None.
