View source for Bryum chryseum

{{Treatment/ID
|accepted_name=Bryum chryseum
|accepted_authority=Mitten
|publications={{Treatment/Publication
|title=J. Linn. Soc., Bot.
|place=12: 304. 1869
|year=1869
}}
|special_status={{Treatment/ID/Special_status
|code=F
|label=Selected by author to be illustrated
}}
|basionyms=
|synonyms=
|hierarchy=Bryaceae;Bryum;Bryum chryseum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Bryaceae]]</div><div class="higher-taxon"><small>genus</small>[[Bryum]]</div><div class="higher-taxon"><small>species</small>[[Bryum chryseum]]</div></div>
|volume=Volume 28
|mention_page=page 125
|treatment_page=page 127
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>gregarious or in dense mats, shiny golden yellow to yellow-green, rarely pale green. <b>Stems</b> 0.5–1 cm, weakly julaceous. <b>Leaves</b> erect when moist, triangular to ovate, concave, 0.5–1 mm; base concolorous; margins rarely recurved proximally or plane distally; apex acuminate to acute, not cucullate, not hyaline; costa long-excurrent, awn slender, pigmented; proximal laminal cells quadrate or short-rectangular, 12–18 µm wide, 1–2:1; distal cells elongate-hexagonal to vermicular, (50–)60–90 × 8–12 µm, (4–)6–8:1, walls thin to somewhat firm, not strongly incrassate. <b>Specialized</b> asexual reproduction absent. <b>Seta</b> red, 1–2 cm. [Capsule brown, clavate to pyriform, 3–4 mm; hypophysis slender, not differentiated. <b>Spores</b> (8–)10–15 µm].</span><!--

-->{{Treatment/Body
|habitat=Soil, Mediterranean and other seasonally dry climates
|elevation=moderate elevations (200-800 m)
|distribution=Calif.;Mexico;Central America;South America (Bolivia;Chile;Colombia;Peru).
|discussion=<p><i>Bryum chryseum</i> was found in California in Fresno, Madera, and Mendocino counties in native plant communities by D. Toren and K. Heise (2009). <i>Bryum chryseum</i> is characteristic of seasonally dry climates from Mexico to Chile. The small plant size, golden color, and triangular leaves with strong excurrent costae are diagnostic. The species is superficially very similar to <i>B. lanatum</i>, but lacks the hyaline lamina and hoary white color of that species. Depauperate material from Arizona with somewhat hyaline awns collected by N. G. Miller from calcareous sandy soil near Wilcox may belong to this species rather than to the gametophytically similar <i>Leptostomopsis nivea</i>. The latter differs from <i>B. chryseum</i> in hyaline awns, serrate distal leaf margins, and numerous extremely incrassate and vermicular distal laminal cells. <i>Bryum chryseum</i> has red rhizoids in clusters on the proximal stems, recurved costal awns when dry, exostomes sometimes reduced, and sometimes short or absent cilia. The sporophyte information here is from Mexican material.</p>
|tables=
|references=
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-->{{#Taxon:
name=Bryum chryseum
|author=
|authority=Mitten
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Bryaceae
|habitat=Soil, Mediterranean and other seasonally dry climates
|elevation=moderate elevations (200-800 m)
|distribution=Calif.;Mexico;Central America;South America (Bolivia;Chile;Colombia;Peru).
|reference=None
|publication title=J. Linn. Soc., Bot.
|publication year=1869
|special status=Selected by author to be illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V28/V28_198.xml
|genus=Bryum
|species=Bryum chryseum
}}<!--

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