View source for Leskea

{{Treatment/ID
|accepted_name=Leskea
|accepted_authority=Hedwig
|publications={{Treatment/Publication
|title=Sp. Musc. Frond.,
|place=211, plates 49 – 58, plate 59, figs. 1 – 5. 1801
|year=1801
}}
|basionyms=
|synonyms=
|hierarchy=Leskeaceae;Leskea
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Leskeaceae]]</div><div class="higher-taxon"><small>genus</small>[[Leskea]]</div></div>
|etymology=For Nathanael Gottfried Leske, 1751 – 1786, botanist of Lei p zig
|volume=Volume 28
|mention_page=page 341, 342, 350, 379, 434, 475, 648
|treatment_page=page 349
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>small, in mats, pale green, dark green, or brownish. <b>Stems</b> freely branched to subpinnate; paraphyllia few, linear-lanceolate, cells smooth; sparsely radiculose. <b>Stem</b> and branch leaves similar or differentiated. <b>Stem</b> leaves erect or somewhat recurved when dry, erect-spreading when moist, oblong-ovate or ovate-lanceolate, plicate on one side, 2-plicate, or plane; margins plane or ± recurved proximally, entire to subserrulate distally, limbidium absent; apex acute, acuminate, or obtuse, hair-point absent; costa single, subpercurrent or ending before apex, opaque, often flexuose-curved distally; alar cells weakly differentiated, subquadrate; medial and distal laminal cells irregularly quadrate-hexagonal, ± 1-papillose on abaxial or both surfaces, walls thick; apical cells ± quadrate except at very tip. <b>Specialized</b> asexual reproduction absent. <b>Sexual</b> condition autoicous; perichaetial leaves pale brown, erect, elongate, apex acuminate. <b>Seta</b> 0.4–1.2 cm. <b>Capsule</b> erect, cylindric to oblong-cylindric, symmetric to distinctly curved; annulus narrow or absent; operculum conic; peristome reduced; exostome teeth linear-lanceolate, usually cross striolate near base, sometimes densely papillose throughout; endostome basal membrane low, segments long-linear, cilia absent or rudimentary. <b>Spores</b> 9–18 µm, smooth to very finely papillose.</span><!--

-->{{Treatment/Body
|distribution=North America;Central America;South America;Europe;Asia;Africa.
|discussion=<p>Species 24 (4 in the flora).</p><!--
--><p><i>Leskea</i> occurs in terrestrial habitats in temperate, subtropical, and tropical regions. The leaves are somewhat asymmetric with proximal laminal cells somewhat longer than the more distal cells, which are obscure; the exostome teeth are incurved when dry; and the endostome is erect, pale, and papillose.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Branch leaves 0.2-0.5 mm; distal laminal cells 4-7 µm.
|[[Leskea australis|Leskea australis]]
|-id=key-0-1
|1
|Branch leaves 0.4-0.8 mm; distal laminal cells 6-11 µm
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Stem and branch leaves differentiated, stem leaves longer than broad; apices ± obliquely acuminate and subsecund; branches somewhat curved at apices; capsules subcylindric, curved.
|[[Leskea polycarpa|Leskea polycarpa]]
|-id=key-0-2
|2
|Stem and branch leaves similar, not much longer than broad; apices not oblique or subsecund; branches not curved at apices; capsules oblong-cylindric, straight or slightly curved
|[[#key-0-3| > 3]]
|-id=key-0-3
|3
|Branches ± tightly foliate; leaf apices acute or sometimes narrowly blunt; leaves ± 2-plicate; margins irregularly revolute proximally, especially when dry; endostome segments as long as exostome teeth; operculum ± pointed.
|[[Leskea gracilescens|Leskea gracilescens]]
|-id=key-0-3
|3
|Branches loosely foliate; leaf apices rounded-obtuse to sometimes acute or acuminate; leaves not plicate (stem leaves occasionally slightly plicate); margins not revolute; endostome segments less than 1/3 exostome teeth length; operculum blunt.
|[[Leskea obscura|Leskea obscura]]
|}
</div></div><!--

-->{{#Taxon:
name=Leskea
|author=Paul L. Redfearn Jr.
|authority=Hedwig
|rank=genus
|parent rank=family
|synonyms=
|basionyms=
|family=Leskeaceae
|distribution=North America;Central America;South America;Europe;Asia;Africa.
|reference=None
|publication title=Sp. Musc. Frond.,
|publication year=1801
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V28/V28_543.xml
|genus=Leskea
}}<!--

-->[[Category:Treatment]][[Category:Leskeaceae]]