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>Lescuraea is found mostly in montane to arctic-alpine regions. The four genera Lescuraea, Pseudoleskea, 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, Lescuraea has generally included as synonyms both Pseudoleskea and Ptychodium; most European workers recognize the latter genus. Also, Rigodiadelphus is related to these three genera, and is probably closest to Pseudoleskea. If Rigodiadelphus is accepted, then it makes sense to segregate Pseudoleskea as well. Otherwise this would make Lescuraea in the broad sense paraphyletic. Lescuraea is here treated in the strict sense, excluding Pseudoleskea, 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.
}}
}}<!--

--><!--

-->{{#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/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V28/V28_541.xml
|genus=Lescuraea
}}<!--

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