View source for Macrocoma

{{Treatment/ID
|accepted_name=Macrocoma
|accepted_authority=(Hornschuch ex Müller Hal.) Grout
|publications={{Treatment/Publication
|title=Bryologist
|place=47: 4. 1944
|year=1944
}}
|basionyms={{Treatment/ID/Basionym
|name=Macromitrium sect. Macrocoma
|authority=Hornschuch ex Müller Hal.
|rank=section
|publication_title=Bot. Zeitung (Berlin)
|publication_place=3: 522. 1845
}}
|synonyms=
|hierarchy=Orthotrichaceae;Macrocoma
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Orthotrichaceae]]</div><div class="higher-taxon"><small>genus</small>[[Macrocoma]]</div></div>
|etymology=Greek macros, long, and kome, hair, alluding to long hairs on calyptrae of some species
|volume=Volume 28
|mention_page=page 38, 653
|treatment_page=page 43
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism size;whole_organism growth form"><b>Plants </b>small, in mats.</span> <span class="statement" id="st-d0_s1" data-properties="stem growth form or orientation;branch orientation"><b>Stems </b>creeping, branches ascending.</span> <span class="statement" id="st-d0_s2" data-properties="leaf fixation or orientation;leaf arrangement or shape;leaf orientation;leaf shape;leaf relief"><b>Leaves </b>closely erect-appressed, not contorted when dry, erect-spreading when moist, lanceolate to ovatelanceolate, not rugose;</span> <span class="statement" id="st-d0_s3" data-properties="margin architecture or shape">margins entire;</span> <span class="statement" id="st-d0_s4" data-properties="apex shape">apex acute to narrowly obtuse [bluntly acuminate];</span> <span class="statement" id="st-d0_s5" data-properties="costa architecture">costa percurrent;</span> <span class="statement" id="st-d0_s6" data-properties="basal laminal cell shape">basal laminal cells rounded to elliptic;</span> <span class="statement" id="st-d0_s7" data-properties="distal cell shape;distal cell some measurement;distal cell architecture or pubescence or relief;row orientation">distal cells roundedquadrate, 7–12 µm, in vertical rows, smooth [papillose only over lumina];</span> <span class="statement" id="st-d0_s8" data-properties="">marginal cells not distinct from basal.</span> <span class="statement" id="st-d0_s9" data-properties="marginal cell fusion;marginal cell reproduction"><b>Sexual </b>condition gonioautoicous;</span> <span class="statement" id="st-d0_s10" data-properties="perichaetial leaf length or size">perichaetial leaves longer than branch leaves.</span> <span class="statement" id="st-d0_s11" data-properties="seta some measurement"><b>Seta </b>4–6.5 mm.</span> <span class="statement" id="st-d0_s12" data-properties="capsule position;capsule shape;capsule architecture or arrangement or shape or vernation;capsule size"><b>Capsule </b>exserted, oblong-cylindric to fusiform, ± plicate distally or not, not constricted below mouth;</span> <span class="statement" id="st-d0_s13" data-properties="stoma position">stomata superficial;</span> <span class="statement" id="st-d0_s14" data-properties="exostome peristome quantity">peristome single, of exostome or endostome;</span> <span class="statement" id="st-d0_s15" data-properties="">exostome teeth 16 blunt, short, papillose;</span> <span class="statement" id="st-d0_s16" data-properties="exostome tooth quantity;exostome tooth shape;exostome tooth height or length or size;exostome tooth relief;basal membrane position;basal membrane relief">or endostome basal membrane low, papillose.</span> <span class="statement" id="st-d0_s17" data-properties="calyptra shape;calyptra length or size;calyptra shape;basal lobe quantity;basal lobe architecture or pubescence or relief;basal lobe pubescence;basal lobe architecture or arrangement or shape or vernation"><b>Calyptra </b>mitrate, long elliptic-conic, basal lobes many, smooth, ± hairy, obscurely plicate, covering capsule.</span> <span class="statement" id="st-d0_s18" data-properties="spore architecture"><b>Spores </b>isosporous, unicellular.</span><!--

-->{{Treatment/Body
|distribution=se United States;Mexico;West Indies;Central America;South America;Asia;Africa;Indian Ocean Islands (Madagascar);Pacific Islands (Hawaii);Pacific Islands (New Zealand);Australia
|discussion=<p>Species 11 (1 in the flora).</p><!--
--><p>Characters of Macrocoma include the rounded basal laminal cells, slender, irregularly branched stems, leaves erect-appressed when dry, cylindric capsules, peristome often reduced, and calyptra long conic-elliptic. There are often rhizoids present on the abaxial costa surface.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Macrocoma
|authority=(Hornschuch ex Müller Hal.) Grout
|rank=genus
|parent rank=family
|synonyms=
|basionyms=Macromitrium sect. Macrocoma
|family=Orthotrichaceae
|distribution=se United States;Mexico;West Indies;Central America;South America;Asia;Africa;Indian Ocean Islands (Madagascar);Pacific Islands (Hawaii);Pacific Islands (New Zealand);Australia
|reference=None
|publication title=Bryologist
|publication year=1944
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V28/V28_51.xml
|genus=Macrocoma
|apex shape=acute;narrowly obtuse
|basal laminal cell shape=rounded;elliptic
|basal lobe architecture or arrangement or shape or vernation=plicate
|basal lobe architecture or pubescence or relief=smooth
|basal lobe pubescence=hairy
|basal lobe quantity=many
|basal membrane position=low
|basal membrane relief=papillose
|branch orientation=ascending
|calyptra length or size=long
|calyptra shape=elliptic-conic;mitrate
|capsule architecture or arrangement or shape or vernation=plicate
|capsule position=exserted
|capsule shape=oblong-cylindric;fusiform
|capsule size=not constricted
|costa architecture=percurrent
|distal cell architecture or pubescence or relief=smooth
|distal cell shape=roundedquadrate
|distal cell some measurement=7um;12um
|exostome peristome quantity=single
|exostome tooth height or length or size=short
|exostome tooth quantity=16
|exostome tooth relief=papillose
|exostome tooth shape=blunt
|leaf arrangement or shape=contorted
|leaf fixation or orientation=erect-appressed
|leaf orientation=erect-spreading
|leaf relief=not rugose
|leaf shape=lanceolate;ovatelanceolate
|margin architecture or shape=entire
|marginal cell fusion=not distinct
|marginal cell reproduction=sexual
|perichaetial leaf length or size=longer
|row orientation=vertical
|seta some measurement=4mm;6.5mm
|spore architecture=unicellular
|stem growth form or orientation=creeping
|stoma position=superficial
|whole_organism growth form=plant
|whole_organism size=small
}}<!--

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