View source for Chenia

{{Treatment/ID
|accepted_name=Chenia
|accepted_authority=R. H. Zander
|publications={{Treatment/Publication
|title=Phytologia
|place=65: 424. 1989 ,
}}
|basionyms={{Treatment/ID/Basionym
|name=Phascum sect. Leptophascum
|authority=Müller Hal.
|rank=section
|publication_title=Flora
|publication_place=71: 7. 1888
}}
|synonyms={{Treatment/ID/Synonym
|name=Phascum subg. Leptophascum
|authority=(Müller Hal.) G. Roth
|rank=subgenus
}}
|hierarchy=Pottiaceae;Pottiaceae subfam. Pottioideae;Chenia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Pottiaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Pottiaceae subfam. Pottioideae]]</div><div class="higher-taxon"><small>genus</small>[[Chenia]]</div></div>
|etymology=For Chen Pan Chieh, 1907–1970, Chinese bryologist
|volume=Volume 27
|mention_page=page 480, 631
|treatment_page=page 633
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>forming a low turf, green distally, brownish proximally. <b>Stems</b> short to elongate, to 3 mm; hyalodermis absent, sclerodermis present, central strand weak to strong; axillary hairs small, of 3–4 cells, proximal cell firm-walled. <b>Leaves</b> appressed and contorted when dry, spreading when moist; ligulate to elliptic, adaxial surface occasionally grooved along costa, plane or broadly channeled across leaf. 1.5–2.5 mm; base rectangular or not differentiated in shape; margins distally plane, weakly recurved or plane basally, irregularly denticulate distally with sharp, mid cell projections ending in a simple papilla, marginal cells often smaller; apex rounded to broadly acute, occasionally sharply apiculate; costa weak, ending several (6–9) cells before the apex or percurrent, lamina inserted adaxially to laterally, adaxial cells short-rectangular, narrower than laminal cells, in 2 rows, abaxial cells short-rectangular; transverse section rounded to elliptic, adaxial epidermis present, adaxial stereid band absent, guide cells 2 in 1 layers, hydroid strand present, small to large, abaxial stereid band very weak or occasionally absent, rounded in sectional shape, abaxial epidermis present; proximal cells differentiated across the leaf base except for one or more rows of marginal cells, rectangular; distal medial cells large, (15–)20–25(–30) µm wide, 1:1, bulging-hexagonal, 1-stratose; papillae absent (distal marginal teeth may be interpreted as sharp papillae), cell walls thin, weakly trigonous, convex on both sides. <b>Specialized</b> asexual reproduction by brood bodies that are sometimes present on rhizoids in soil. <b>Sexual</b> condition dioicous. [Seta ca. 1.2 cm. <b>Capsule</b> stegocarpous or cleistocarpous; theca ovate; annulus of 2–3 layers of strongly vesiculose cells, persistent; peristome teeth when present 16, filamentous, somewhat anastomosing, straight or weakly twisted counterclockwise. <b>Calyptra</b> cucullate. <b>Spores</b> ca. 10 µm.] KOH laminal color reaction red.</span><!--

-->{{Treatment/Body
|distribution=North America;Mexico;South America;Europe;e Asia;Australia.
|discussion=<p>Species 3 (1 in the flora).</p><!--
--><p><i>Chenia</i> includes both cleistocarpous and peristomate taxa. The diagnostic characters are leaves ligulate to spathulate, sharply crenulate to irregularly dentate above with sharp mid-marginal wall projections, often sharply apiculate by a distinctive thick-walled cell or cells, distal laminal cells large, weakly trigonous, epapillose, and red in KOH solution.</p>
|tables=
|references={{Treatment/Reference
|id=neumann1972a
|text=Neumann, A. J. 1972. Observations on the morphology and biology of the moss Tortula vectensis E. Warb. & Crundw. in Louisiana. Bryologist 75: 580–583.
}}{{Treatment/Reference
|id=reese1967a
|text=Reese, W. D. 1967. The discovery of Tortula vectensis in North America. Bryologist 70: 112–114.
}}
}}<!--

--><!--

-->{{#Taxon:
name=Chenia
|author=Richard H. Zander
|authority=R. H. Zander
|rank=genus
|parent rank=subfamily
|synonyms=Phascum subg. Leptophascum
|basionyms=Phascum sect. Leptophascum
|family=Pottiaceae
|distribution=North America;Mexico;South America;Europe;e Asia;Australia.
|reference=neumann1972a;reese1967a
|publication title=Phytologia
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V27/V27_932.xml
|subfamily=Pottiaceae subfam. Pottioideae
|genus=Chenia
}}<!--

-->[[Category:Treatment]][[Category:Pottiaceae subfam. Pottioideae]]