View source for Diphyscium

{{Treatment/ID
|accepted_name=Diphyscium
|accepted_authority=D. Mohr
|publications={{Treatment/Publication
|title=Observ. Bot.,
|place=34. 1803 ,
}}
|basionyms=
|synonyms=
|hierarchy=Diphysciaceae;Diphyscium
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Diphysciaceae]]</div><div class="higher-taxon"><small>genus</small>[[Diphyscium]]</div></div>
|etymology=Greek di-, two, and physkion, little gut, alluding to double bladder of spore sac and capsule wall
|volume=Volume 27
|mention_page=page 162
|treatment_page=page 163
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>gregarious, forming compact short turf. <b>Leaves</b> lingulate, costate, 1–2-stratose, distal cells chlorophyllose, quadrate to isodiametric, thick-walled and papillose or mammillose or smooth, proximal cells rectangular, hyaline, smooth. <b>Perigonial</b> leaves similar to vegetative leaves, except that interior are reduced and enclose paraphyses, axillary hairs, elongate antheridia. <b>Perichaetial</b> leaves long-awned with awn smooth or spinulose, awn often longer than lamina, with laminal apex lacerate and ciliate, when without sporangium strongly imbricate and penicellate, enclosing paraphyses, axillary hairs, few archegonia. <b>Calyptra</b> conic, barely covering operculum.</span><!--

-->{{Treatment/Body
|distribution=North America;Mexico;West Indies;Central America;s South America;Europe;Asia;Atlantic Islands (Azores;Madeira);Pacific Islands;Australia.
|discussion=<p>Species 12 (2 in the flora).</p><!--
--><p><i>Diphyscium</i> is the most widespread genus in the family and is mainly temperate to subtropical. It is sufficiently distinctive and unlikely to be confused with any other genus in North America if perichaetia or sporophytes are present. Vegetative material is superficially similar to that of the <i>Pottiaceae</i>, especially in leaf form and papillosity. Fortunately, perichaetia and sporophytes are frequent in the eastern range of the genus, while turf firmly cemented by rhizoids is a trait not shared by <i>Pottiaceae</i> in the same range.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Vegetative leaves blunt, leaf cells mammillose or papillose; awn of perichaetial leaves spinulose; soil
|[[Diphyscium foliosum|Diphyscium foliosum]]
|-id=key-0-1
|1
|Vegetative leaves acute, leaf cells smooth; awn of perichaetial leaves smooth; rock.
|[[Diphyscium mucronifolium|Diphyscium mucronifolium]]
|}
</div></div><!--

-->{{#Taxon:
name=Diphyscium
|author=
|authority=D. Mohr
|rank=genus
|parent rank=family
|synonyms=
|basionyms=
|family=Diphysciaceae
|distribution=North America;Mexico;West Indies;Central America;s South America;Europe;Asia;Atlantic Islands (Azores;Madeira);Pacific Islands;Australia.
|reference=None
|publication title=Observ. Bot.,
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V27/V27_204.xml
|genus=Diphyscium
}}<!--

-->[[Category:Treatment]][[Category:Diphysciaceae]]