View source for Leskea ← Leskea You do not have permission to edit this page, for the following reason: The action you have requested is limited to users in the group: Users. You can view and copy the source of this page. {{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>Leskea 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/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V28/V28_543.xml |genus=Leskea }}<!-- -->[[Category:Treatment]][[Category:Leskeaceae]] Templates used on this page: Template:Leskeaceae (view source) Template:Treatment/AuthorLink (view source) Template:Treatment/Body (view source) Template:Treatment/Body/Maps (view source) Template:Treatment/ID (view source) Template:Treatment/Publication (view source) Return to Leskea.