View source for Stereophyllaceae

{{Treatment/ID
|accepted_name=Stereophyllaceae
|accepted_authority=W. R. Buck & Ireland
|publications=
|basionyms=
|synonyms=
|hierarchy=Stereophyllaceae
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Stereophyllaceae]]</div></div>
|volume=Volume 28
|mention_page=page 473
|treatment_page=page 469
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>medium-sized [to moderately large], in thin to dense, flat mats, often glossy. <b>Stems</b> creeping, simple or sparingly and irregularly branched, complanate-foliate to julaceous; cortical cells small, walls thick; pseudoparaphyllia filamentous [sometimes foliose]; rhizoids in clusters below leaf insertion on abaxial stem surface, smooth [or papillose]; axillary hair basal cell 1, brown, apical cells 3–6, hyaline. <b>Leaves</b> erect to wide-spreading, usually imbricate when dry, lanceolate to ovate, symmetric or rarely asymmetric, flat to somewhat concave; base not decurrent; margins plane or incurved, entire to serrulate distally; apex obtuse to long-acuminate; costa single, 1/3–3/4 leaf length, or rarely ecostate; alar cells differentiated, quadrate, rectangular, or oblate, collenchymatous, regions usually large, often unequally distributed on either side of costa, always covering adaxial costa surface; distal laminal cells linear to rhomboidal, smooth, rarely 1-papillose over lumina or prorulose at distal ends on abaxial surface, walls thin or thick, not porose. <b>Specialized</b> asexual reproduction unknown. <b>Sexual</b> condition autoicous [rarely dioicous], often producing sporophytes; perigonia scattered along stem, leaves ovate. <b>Seta</b> single, long, straight to somewhat flexuose, smooth. <b>Capsule</b> cernuous or erect, straight or slightly curved, contracted below mouth when dry, smooth; exothecial cell walls thin or thick; annulus differentiated and deciduous, or undifferentiated; operculum conic to short-rostrate; peristome double; exostome teeth bordered, external surface cross striolate proximally, papillose distally, internal surface ± projecting; endostome basal membrane high or low, segments keeled, perforate, shorter than or almost as long as exostome teeth, cilia present or absent. <b>Calyptra</b> cucullate, smooth, naked. <b>Spores</b> spheric to ovoid, minutely papillose.</span><!--

-->{{Treatment/Body
|distribution=s United States;Mexico;West Indies;Central America;South America;Asia;Africa;Pacific Islands;Australia.
|discussion=<p>Genera 8, species ca. 28 (3 genera, 3 species in the flora).</p><!--
--><p>There are two subfamilies recognized for Stereophyllaceae. Plants of subfam. Stereophylloideae M. Fleischer have similar stem and branch leaves; strong costae to 1/3–3/4 leaf length on all leaves; cernuous or erect capsules; exothecial cells not or scarcely collenchymatous; and spores 9–27 µm. Plants of subfam. Pilosioideae W. R. Buck & Ireland have differentiated stem and branch leaves; weak costae, rarely to 1/3 leaf length, only on lateral leaves; cernuous capsules; exothecial cells collenchymatous; and spores 7–9 µm.</p>
|tables=
|references={{Treatment/Reference
|id=buck1985a
|text=Buck, W. R. and R. R. Ireland. 1985. A reclassification of the Plagiotheciaceae. Nova Hedwigia 41: 89–125.
}}{{Treatment/Reference
|id=grout1945a
|text=Grout, A. J. 1945. A revision of the North American species of Stereophyllum and Pilosium, with descriptions of some South American species. Bryologist 48: 60–70.
}}{{Treatment/Reference
|id=ireland1994d
|text=Ireland, R. R. and W. R. Buck. 1994. Stereophyllaceae. In: Organization for Flora Neotropica. 1968+. Flora Neotropica. 109+ nos. New York. No. 65.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Stem and branch leaves differentiated; costae rarely to 1/3 leaf length, only on lateral leaves; capsules cernuous; exothecial cell walls collenchymatous; spores 7-9 µm.
|[[Pilosium|Pilosium]]
|-id=key-0-1
|1
|Stem and branch leaves similar; costae 1/3 -3/4 leaf length, on all leaves; capsules cernuous or erect; exothecial cell walls thin; spores 12-27 µm
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Leaf apices abruptly acute to obtuse; distal laminal cells quadrate to rhomboidal, 1-papillose over lumina or sometimes smooth.
|[[Stereophyllum|Stereophyllum]]
|-id=key-0-2
|2
|Leaf apices acuminate, rarely acute or obtuse; distal laminal cells broadly fusiform, smooth or occasionally prorulose on abaxial surface.
|[[Entodontopsis|Entodontopsis]]
|}
</div></div><!--

-->{{#Taxon:
name=Stereophyllaceae
|author=William R. Buck;Robert R. Ireland Jr.
|authority=W. R. Buck & Ireland
|rank=family
|parent rank=
|synonyms=
|basionyms=
|family=Stereophyllaceae
|illustrator=Patricia M. Eckel
|distribution=s United States;Mexico;West Indies;Central America;South America;Asia;Africa;Pacific Islands;Australia.
|reference=buck1985a;grout1945a;ireland1994d
|publication title=
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V28/V28_732.xml
}}<!--

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