View source for Lescuraea

{{Treatment/ID
|accepted_name=Lescuraea
|accepted_authority=Schimper in P. Bruch and W. P. Schimper
|publications={{Treatment/Publication
|title=in P. Bruch and W. P. Schimper, Bryol. Europ.
|place=5: 101, plate 459. 1851
|year=1851
}}
|basionyms=
|synonyms=
|hierarchy=Leskeaceae;Lescuraea
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Leskeaceae]]</div><div class="higher-taxon"><small>genus</small>[[Lescuraea]]</div></div>
|etymology=For Charles Léo Lesquereux, 1806 – 1889, Swiss-American bryologist and paleontol o gist
|volume=Volume 28
|mention_page=page 341, 356, 648, 652
|treatment_page=page 348
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>small to medium-sized, in thin mats, yellow-green, gold-green, or green. <b>Stems</b> irregularly branched; paraphyllia many on branches, few on stems, filamentous to foliose, cells smooth or prorulose; rhizoids in clusters arising from base of stem leaves. <b>Stem</b> and branch leaves similar. <b>Stem</b> leaves appressed to julaceous when dry, erect-spreading when moist, ovate-lanceolate to lanceolate, strongly plicate proximally; margins recurved proximally, serrate distally, limbidium absent; apex abruptly to gradually acuminate, hair-point absent; costa single, 2/3 leaf length to subpercurrent, opaque, not sinuate; alar cells quadrate to short-rectangular; proximal laminal cells elongate, linear-fusiform, more than 3:1, walls somewhat pitted; medial cells linear-fusiform, 4–8:1, smooth or occasionally prorulose, walls thin. <b>Specialized</b> asexual reproduction absent. <b>Sexual</b> condition dioicous; perichaetial leaves pale translucent, squarrose when moist, longer, apex more acuminate, costa short. <b>Seta</b> 0.4–1.6 cm. <b>Capsule</b> erect, ovate to cylindric, symmetric; annulus absent; operculum conic; peristome strongly reduced; exostome teeth lanceolate or linear-lanceolate, papillose; endostome basal membrane low, segments slenderly lanceolate to filiform, cilia absent. <b>Spores</b> 14–22 µm, coarsely papillose.</span><!--

-->{{Treatment/Body
|distribution=North America;Eurasia.
|discussion=<p>Species 4 (1 in the flora).</p><!--
--><p><i>Lescuraea</i> is found mostly in montane to arctic-alpine regions. The four genera <i>Lescuraea</i>, <i>Pseudoleskea</i>, Ptychodium Schimper, and Rigodiadelphus Dixon form the core group of the family Pseudoleskeaceae Schimper, but the relationships among them have not been worked out. In the broad sense, <i>Lescuraea</i> has generally included as synonyms both <i>Pseudoleskea</i> and Ptychodium; most European workers recognize the latter genus. Also, Rigodiadelphus is related to these three genera, and is probably closest to <i>Pseudoleskea</i>. If Rigodiadelphus is accepted, then it makes sense to segregate <i>Pseudoleskea</i> as well. Otherwise this would make <i>Lescuraea</i> in the broad sense paraphyletic. <i>Lescuraea</i> is here treated in the strict sense, excluding <i>Pseudoleskea</i>, based on numerous differences in leaf and capsule characters. J. R. Rohrer (1986) provided a useful comparison of differences among the genera.</p>
|tables=
|references={{Treatment/Reference
|id=krieger2002a
|text=Krieger, M. U. 2002. Revision of Lescuraea for North America. M.Sc. thesis. University of Alberta.
}}{{Treatment/Reference
|id=lawton1957a
|text=Lawton, E. 1957. A revision of the genus Lescuraea in Europe and North America. Bull. Torrey Bot. Club 84: 281–307.
}}
}}<!--

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-->{{#Taxon:
name=Lescuraea
|author=John R. Spence
|authority=Schimper in P. Bruch and W. P. Schimper
|rank=genus
|parent rank=family
|synonyms=
|basionyms=
|family=Leskeaceae
|distribution=North America;Eurasia.
|reference=krieger2002a;lawton1957a
|publication title=in P. Bruch and W. P. Schimper, Bryol. Europ.
|publication year=1851
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V28/V28_541.xml
|genus=Lescuraea
}}<!--

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