FNA>Volume Importer |
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| − | --><span class="statement" id="st-d0_s0" data-properties="shrub some measurement;tree some measurement"><b>Shrubs </b>or trees, to 10 m;</span> <span class="statement" id="st-d0_s1" data-properties="crown size or width">crowns narrow.</span> <span class="statement" id="st-d0_s2" data-properties="bark coloration;bark architecture or pubescence or relief"><b>Bark </b>light gray, smooth;</span> <span class="statement" id="st-d0_s3" data-properties="lenticel size;lenticel prominence">lenticels small, inconspicuous.</span> <span class="statement" id="st-d0_s4" data-properties="bud season;bud architecture;bud shape;bud shape;bud shape;bud some measurement;apex shape"><b>Winter </b>buds stipitate, ovoid to ellipsoid, 2.5–5 mm, apex rounded;</span> <span class="statement" id="st-d0_s5" data-properties="stalk some measurement">stalks 1–3 mm;</span> <span class="statement" id="st-d0_s6" data-properties="scale quantity;scale size;scale development;scale coating">scales 2–3, subequal, often poorly developed, heavily resin-coated.</span> <span class="statement" id="st-d0_s7" data-properties="leaf-blade shape;leaf-blade shape;leaf-blade shape;leaf-blade shape;leaf-blade shape;leaf-blade length;leaf-blade width;leaf-blade texture;base shape;base shape;base shape;margin prominence or shape;tooth position;tooth quantity;tooth arrangement;apex shape;apex shape;apex shape;apex shape;apex shape"><b>Leaf-</b>blade narrowly elliptic, oblong, or narrowly obovate, 4.5–9 × 2–5 cm, leathery, base acute to cuneate, margins flat, teeth low, single, relatively distant, apex acute, obtuse, or rounded;</span> <span class="statement" id="st-d0_s8" data-properties="surface pubescence;surface coating">surfaces abaxially mostly glabrous, resin-coated when young.</span> <span class="statement" id="st-d0_s9" data-properties=""><b>Inflorescences:</b> catkins formed during same season as flowering;</span> <span class="statement" id="st-d0_s10" data-properties="catkin architecture;catkin some measurement">staminate catkins in 1 terminal cluster of 2–4, 2–6 cm;</span> <span class="statement" id="st-d0_s11" data-properties="leaf-axil position;catkin architecture">pistillate catkins solitary in leaf-axils proximal to staminate catkins.</span> <span class="statement" id="st-d0_s12" data-properties="catkin architecture;catkin architecture or arrangement or growth form;catkin life cycle"><b>Flowering </b>in late summer or early fall.</span> <span class="statement" id="st-d0_s13" data-properties="infructescence shape;infructescence length;infructescence width"><b>Infructescences </b>ovoid, 1.2–2.8 × 1.2–2.2 cm;</span> <span class="statement" id="st-d0_s14" data-properties="peduncle some measurement">peduncles 5–10 mm.</span> <span class="statement" id="st-d0_s15" data-properties="samara arrangement or shape;wing size;wing size;wing size"><b>Samaras </b>elliptic, wings reduced to narrow, leathery ridges.</span> <span class="statement" id="st-d0_s16" data-properties="ridge texture;2n chromosome quantity">2n = 28.</span><!-- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Shrubs </b>or trees, to 10 m; crowns narrow. <b>Bark</b> light gray, smooth; lenticels small, inconspicuous. <b>Winter</b> buds stipitate, ovoid to ellipsoid, 2.5–5 mm, apex rounded; stalks 1–3 mm; scales 2–3, subequal, often poorly developed, heavily resin-coated. <b>Leaf</b> blade narrowly elliptic, oblong, or narrowly obovate, 4.5–9 × 2–5 cm, leathery, base acute to cuneate, margins flat, teeth low, single, relatively distant, apex acute, obtuse, or rounded; surfaces abaxially mostly glabrous, resin-coated when young. <b>Inflorescences</b>: catkins formed during same season as flowering; staminate catkins in 1 terminal cluster of 2–4, 2–6 cm; pistillate catkins solitary in leaf axils proximal to staminate catkins. <b>Flowering</b> in late summer or early fall. <b>Infructescences</b> ovoid, 1.2–2.8 × 1.2–2.2 cm; peduncles 5–10 mm. <b>Samaras</b> elliptic, wings reduced to narrow, leathery ridges. <b>2n</b> = 28.</span><!-- |
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| | |publication year=1842 | | |publication year=1842 |
| | |special status=Endemic;Selected by author to be illustrated | | |special status=Endemic;Selected by author to be illustrated |
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V3/V3_590.xml | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V3/V3_590.xml |
| | |subfamily=Betulaceae subfam. Betuloideae | | |subfamily=Betulaceae subfam. Betuloideae |
| | |genus=Alnus | | |genus=Alnus |
| | |species=Alnus maritima | | |species=Alnus maritima |
| − | |2n chromosome quantity=28
| |
| − | |apex shape=rounded;obtuse;rounded;obtuse;acute;rounded
| |
| − | |bark architecture or pubescence or relief=smooth
| |
| − | |bark coloration=light gray
| |
| − | |base shape=acute;cuneate
| |
| − | |bud architecture=stipitate
| |
| − | |bud season=winter
| |
| − | |bud shape=ovoid;ellipsoid
| |
| − | |bud some measurement=2.5mm;5mm
| |
| − | |catkin architecture=pistillate;staminate;staminate
| |
| − | |catkin architecture or arrangement or growth form=solitary
| |
| − | |catkin life cycle=flowering
| |
| − | |catkin some measurement=2cm;6cm
| |
| − | |crown size or width=narrow
| |
| − | |infructescence length=1.2cm;2.8cm
| |
| − | |infructescence shape=ovoid
| |
| − | |infructescence width=1.2cm;2.2cm
| |
| − | |leaf-axil position=proximal
| |
| − | |leaf-blade length=4.5cm;9cm
| |
| − | |leaf-blade shape=obovate;oblong;obovate;oblong;elliptic
| |
| − | |leaf-blade texture=leathery
| |
| − | |leaf-blade width=2cm;5cm
| |
| − | |lenticel prominence=inconspicuous
| |
| − | |lenticel size=small
| |
| − | |margin prominence or shape=flat
| |
| − | |peduncle some measurement=5mm;10mm
| |
| − | |ridge texture=leathery
| |
| − | |samara arrangement or shape=elliptic
| |
| − | |scale coating=resin-coated
| |
| − | |scale development=developed
| |
| − | |scale quantity=2;3
| |
| − | |scale size=subequal
| |
| − | |shrub some measurement=0m;10m
| |
| − | |stalk some measurement=1mm;3mm
| |
| − | |surface coating=resin-coated
| |
| − | |surface pubescence=glabrous
| |
| − | |tooth arrangement=distant
| |
| − | |tooth position=low
| |
| − | |tooth quantity=single
| |
| − | |tree some measurement=0m;10m
| |
| − | |wing size=reduced;narrow
| |
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| | -->[[Category:Treatment]][[Category:Alnus]] | | -->[[Category:Treatment]][[Category:Alnus]] |
Shrubs or trees, to 10 m; crowns narrow. Bark light gray, smooth; lenticels small, inconspicuous. Winter buds stipitate, ovoid to ellipsoid, 2.5–5 mm, apex rounded; stalks 1–3 mm; scales 2–3, subequal, often poorly developed, heavily resin-coated. Leaf blade narrowly elliptic, oblong, or narrowly obovate, 4.5–9 × 2–5 cm, leathery, base acute to cuneate, margins flat, teeth low, single, relatively distant, apex acute, obtuse, or rounded; surfaces abaxially mostly glabrous, resin-coated when young. Inflorescences: catkins formed during same season as flowering; staminate catkins in 1 terminal cluster of 2–4, 2–6 cm; pistillate catkins solitary in leaf axils proximal to staminate catkins. Flowering in late summer or early fall. Infructescences ovoid, 1.2–2.8 × 1.2–2.2 cm; peduncles 5–10 mm. Samaras elliptic, wings reduced to narrow, leathery ridges. 2n = 28.
Phenology: Flowering late summer–early fall.
Habitat: Along edges of ponds and small streams, often in standing water
Elevation: 0–100 m
Distribution
Del., Md., Okla.
Discussion
Alnus maritima consists of widely disjunct populations in Delaware, Maryland, and southern Oklahoma. The populations probably represent remnants of Pleistocene and post-Pleistocene distributions and migrations. It is our only member of the predominantly Asian fall-blooming Alnus subg. Clethropsis.
Selected References
None.
