View source for Micromitrium megalosporum

{{Treatment/ID
|accepted_name=Micromitrium megalosporum
|accepted_authority=Austin
|publications={{Treatment/Publication
|title=Musci Appalach.,
|place=11. 1870,
}}
|basionyms={{Treatment/ID/Basionym
|name=Ephemerum megalosporum
|authority=(Austin) E. S. Salmon
|rank=species
|publication_title=J. Linn. Soc., Bot.
|publication_place=34: 166. 1899
}}
|synonyms={{Treatment/ID/Synonym
|name=Nanomitrium megalosporum
|authority=(Austin) E. Britton
|rank=species
}}
|hierarchy=Ephemeraceae;Micromitrium;Micromitrium megalosporum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Ephemeraceae]]</div><div class="higher-taxon"><small>genus</small>[[Micromitrium]]</div><div class="higher-taxon"><small>species</small>[[Micromitrium megalosporum]]</div></div>
|volume=Volume 27
|mention_page=page 647, 648
|treatment_page=page 649
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism arrangement;whole_organism growth form;whole_organism coloration;whole_organism growth form;protonema count or density"><b>Plants </b>scattered or gregarious in usually sparse protonemata, yellow-green to orangebrown.</span> <span class="statement" id="st-d0_s1" data-properties="stem some measurement"><b>Stems </b>less than 0.2 mm.</span> <span class="statement" id="st-d0_s2" data-properties="leaf orientation;leaf orientation;leaf shape;leaf architecture or fixation;leaf shape;leaf length;leaf width"><b>Leaves </b>erect or spreading, broadly ovatelanceolate and somewhat clasping at base, acuminate, 0.5–1.1 × 0.14–0.43 mm, margins usually ± incurved beyond the middle, entire proximally and distally entire to serrulate.</span> <span class="statement" id="st-d0_s3" data-properties="margin orientation;margin architecture or shape;margin architecture or shape;margin reproduction;margin reproduction"><b>Sexual </b>condition synoicous.</span> <span class="statement" id="st-d0_s4" data-properties="capsule dehiscence;capsule dehiscence;capsule coloration;capsule shape;capsule shape;capsule shape;ring position or shape;cell variability;apiculu height or length or size;apiculu width"><b>Capsule </b>cleistocarpous or rarely dehiscing by a ring of differentiated cells distal to the equator, orangebrown, globose or slightly flattened, rarely broadly ovoid, with a short, broad apiculus;</span> <span class="statement" id="st-d0_s5" data-properties="layer quantity;stomate presence">exothecial cells in 2 layers, stomates confined to distal half, sometimes absent.</span> <span class="statement" id="st-d0_s6" data-properties="spore quantity;spore shapes;proximal face shape;proximal face length;proximal face width;proximal face coloration"><b>Spores </b>fewer than 100, various shapes, proximal face only rarely concave, 55–83 × 37–67 µm, orangebrown.</span><!--

-->{{Treatment/Body
|phenology=Capsules mature summer–winter, with some capsules persisting through spring with leaves intact or eroded.
|habitat=In sun or partial shade, unfertilized bare soil, sparsely vegetated turf
|elevation=low to moderate elevations (0-700 m)
|distribution=Ark.;Conn.;Fla.;Ga.;La.;Maine;Md.;Mich.;Miss.;Mo.;N.J.;N.C.;Pa.;Wis.;West Indies (Cuba);e Asia (Japan);Africa (Cameroon)
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Micromitrium megalosporum
|authority=Austin
|rank=species
|parent rank=genus
|synonyms=Nanomitrium megalosporum
|basionyms=Ephemerum megalosporum
|family=Ephemeraceae
|phenology=Capsules mature summer–winter, with some capsules persisting through spring with leaves intact or eroded.
|habitat=In sun or partial shade, unfertilized bare soil, sparsely vegetated turf
|elevation=low to moderate elevations (0-700 m)
|distribution=Ark.;Conn.;Fla.;Ga.;La.;Maine;Md.;Mich.;Miss.;Mo.;N.J.;N.C.;Pa.;Wis.;West Indies (Cuba);e Asia (Japan);Africa (Cameroon)
|reference=None
|publication title=Musci Appalach.,
|publication year=
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V27/V27_956.xml
|genus=Micromitrium
|species=Micromitrium megalosporum
|apiculu height or length or size=short
|apiculu width=broad
|capsule coloration=orangebrown
|capsule dehiscence=dehiscing;cleistocarpous
|capsule shape=ovoid;flattened;globose
|cell variability=differentiated
|layer quantity=2
|leaf architecture or fixation=clasping
|leaf length=0.5mm;1.1mm
|leaf orientation=spreading;erect
|leaf shape=acuminate;ovatelanceolate
|leaf width=0.14mm;0.43mm
|margin architecture or shape=distally entire;serrulate
|margin orientation=incurved
|margin reproduction=synoicous;sexual
|protonema count or density=sparse
|proximal face coloration=orangebrown
|proximal face length=55um;83um
|proximal face shape=concave
|proximal face width=37um;67um
|ring position or shape=distal
|spore quantity=0;100
|spore shapes=various
|stem some measurement=0mm;0.2mm
|stomate presence=absent
|whole_organism arrangement=scattered
|whole_organism coloration=yellow-green;orangebrown
|whole_organism growth form=plant;gregarious
}}<!--

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