View source for Pseudoleskea incurvata

{{Treatment/ID
|accepted_name=Pseudoleskea incurvata
|accepted_authority=(Hedwig) Loeske
|publications={{Treatment/Publication
|title=Hedwigia
|place=50: 313. 1911
|year=1911
}}
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms={{Treatment/ID/Basionym
|name=Leskea incurvata
|authority=Hedwig
|rank=species
|publication_title=Sp. Musc. Frond.,
|publication_place=216, plate 53, figs. 8 – 14. 1801
}}
|synonyms={{Treatment/ID/Synonym
|name=Lescuraea incurvata
|authority=(Hed wig) E. Lawton
|rank=species
}}
|hierarchy=Leskeaceae;Pseudoleskea;Pseudoleskea incurvata
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Leskeaceae]]</div><div class="higher-taxon"><small>genus</small>[[Pseudoleskea]]</div><div class="higher-taxon"><small>species</small>[[Pseudoleskea incurvata]]</div></div>
|volume=Volume 28
|mention_page=page 356, 359
|treatment_page=page 357
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism size;whole_organism coloration;whole_organism coloration;whole_organism coloration;whole_organism coloration;whole_organism coloration;whole_organism coloration;whole_organism growth form;mat width"><b>Plants </b>medium-sized to large, in thick mats, green, yellow-green, orange-green, or rarely black-green.</span> <span class="statement" id="st-d0_s1" data-properties="stem architecture or shape;branch fragility;apex course"><b>Stems </b>with branches robust, julaceous, apices curving up;</span> <span class="statement" id="st-d0_s2" data-properties="central strand presence">central strand present;</span> <span class="statement" id="st-d0_s3" data-properties="paraphyllium quantity;paraphyllium texture;paraphyllium architecture;paraphyllium architecture">paraphyllia many, filamentous to foliose, branched.</span> <span class="statement" id="st-d0_s4" data-properties="leaf orientation;leaf orientation;leaf orientation;leaf reflectance;leaf reflectance;leaf shape;leaf architecture or shape;leaf shape;leaf arrangement;leaf atypical some measurement;leaf some measurement"><b>Leaves </b>appressed to somewhat erect when dry, erect-spreading when moist, glossy or dull, ovate to ovatelanceolate, asymmetric, usually falcate to falcate-secund, 0.8–2 (–2.5) mm;</span> <span class="statement" id="st-d0_s5" data-properties="margin orientation">margins strongly and narrowly recurved to near acumen;</span> <span class="statement" id="st-d0_s6" data-properties="apex shape;apex height or length or size;apex shape;hairpoint presence">apex abruptly acute to short or rarely long-acuminate, hairpoint absent;</span> <span class="statement" id="st-d0_s7" data-properties="">costa subpercurrent to percurrent, orange-green, sometimes sinuate;</span> <span class="statement" id="st-d0_s8" data-properties="costa position;costa architecture;costa coloration;costa shape;cell shape;region size">alar cells transversely elongate to quadrate, region large;</span> <span class="statement" id="st-d0_s9" data-properties="medial laminal cell variability;medial laminal cell shape;medial laminal cell shape;medial laminal cell some measurement;medial laminal cell atypical quantity;medial laminal cell quantity;medial laminal cell quantity;medial laminal cell coloration;medial laminal cell coloration;lumen some measurement;wall texture;wall size;wall relief">medial laminal cells heterogeneous, elliptic or isodiametric, to 25 µm, 1–2 (–3):1, opaque or sometimes pellucid, prorate to near base, lumina smaller than 8 µm, walls firm to strongly incrassate, not pitted;</span> <span class="statement" id="st-d0_s10" data-properties="apical cell quantity;apical cell quantity">apical cells 1–2: 1;</span> <span class="statement" id="st-d0_s11" data-properties="apical cell quantity;cell height or length or size;wall relief">juxtacostal cells somewhat shorter than more distal cells, walls not pitted.</span> <span class="statement" id="st-d0_s12" data-properties="capsule orientation;capsule architecture or shape;capsule some measurement"><b>Capsule </b>erect to suberect, symmetric, 1–2.5 mm;</span> <span class="statement" id="st-d0_s13" data-properties="basal membrane quantity;segment length;cilium quantity;cilium quantity">endostome basal membrane 1/4–1/3 exostome length, segments shorter than exostome, cilia 1 or 2.</span> <span class="statement" id="st-d0_s14" data-properties="spore some measurement"><b>Spores </b>10–20 µm.</span><!--

-->{{Treatment/Body
|distribution=North America;Eurasia;North Temperate Zone;moderate to high elevations
|discussion=<p>Varieties 11 (3 in the flora).</p><!--
--><p>Pseudoleskea incurvata is a complex and highly variable species; the capsules mature in summer. Most plants can be distinguished from P. radicosa by the thick-walled proximal and medial laminal cells that are mostly short, and by the relatively short cells in the acumen. Although there are intermediate specimens, the three varieties are often quite distinct. Combined ecological, molecular and morphological studies of the varieties are needed to determine their distinctiveness.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Plants large; leaves 1.5-2.5 mm, distinctly falcate-secund; apices long-acuminate; laminal cell prorulae indistinct.
|[[Pseudoleskea incurvata var. gigantea|Pseudoleskea incurvata var. gigantea]]
|-id=key-0-1
|1
|Plants small to medium-sized; leaves smaller than1.5 mm, straight, falcate, or falcate-secund; apices usually short-acuminate to acute; laminal cell prorulae distinct
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Leaves 1-1.5 mm; apices acute to short-acuminate to acuminate; medial laminal cells elliptic, corners rounded.
|[[Pseudoleskea incurvata var. incurvata|Pseudoleskea incurvata var. incurvata]]
|-id=key-0-2
|2
|Leaves 0.8-1.1 mm; apices abruptly acute to short-acuminate; medial laminal cells isodiametric, corners angular.
|[[Pseudoleskea incurvata var. tenuiretis|Pseudoleskea incurvata var. tenuiretis]]
|}
</div></div><!--

-->{{#Taxon:
name=Pseudoleskea incurvata
|authority=(Hedwig) Loeske
|rank=species
|parent rank=genus
|synonyms=Lescuraea incurvata
|basionyms=Leskea incurvata
|family=Leskeaceae
|distribution=North America;Eurasia;North Temperate Zone;moderate to high elevations
|reference=None
|publication title=Hedwigia
|publication year=1911
|special status=Illustrated
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V28/V28_556.xml
|genus=Pseudoleskea
|species=Pseudoleskea incurvata
|apex course=curving
|apex height or length or size=short
|apex shape=long-acuminate;acute
|apical cell quantity=1;2
|basal membrane quantity=1/4;1/3
|branch fragility=robust
|capsule architecture or shape=symmetric
|capsule orientation=erect;suberect
|capsule some measurement=1mm;2.5mm
|cell height or length or size=somewhat shorter
|cell shape=transversely elongate;quadrate
|central strand presence=absent
|cilium quantity=2;1
|costa architecture=percurrent
|costa coloration=orange-green
|costa position=subpercurrent
|costa shape=sinuate
|hairpoint presence=absent
|leaf architecture or shape=asymmetric
|leaf arrangement=falcate-secund
|leaf atypical some measurement=2mm;2.5mm
|leaf orientation=erect-spreading;erect;appressed to somewhat
|leaf reflectance=dull;glossy
|leaf shape=falcate;ovate;ovatelanceolate
|leaf some measurement=0.8mm;2mm
|lumen some measurement=8
|margin orientation=recurved
|mat width=thick
|medial laminal cell atypical quantity=2;3
|medial laminal cell coloration=pellucid;opaque
|medial laminal cell quantity=1;1;2
|medial laminal cell shape=isodiametric;elliptic
|medial laminal cell some measurement=0um;25um
|medial laminal cell variability=heterogeneous
|paraphyllium architecture=branched;foliose
|paraphyllium quantity=many
|paraphyllium texture=filamentous
|region size=large
|segment length=shorter
|spore some measurement=10um;20um
|stem architecture or shape=julaceous
|wall relief=not pitted;not pitted
|wall size=incrassate
|wall texture=firm
|whole_organism coloration=black-green;orange-green;black-green;orange-green;yellow-green;green
|whole_organism growth form=plant
|whole_organism size=medium-sized;large
}}<!--

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