View source for Micropsis

{{Treatment/ID
|accepted_name=Micropsis
|accepted_authority=de Candolle in A. P. de Candolle and A. L. P. P. de Candolle
|publications={{Treatment/Publication
|title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr.
|place=5: 459. 1836
|year=1836
}}
|common_names=Straitjackets
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Gnaphalieae;Micropsis
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Gnaphalieae]]</div><div class="higher-taxon"><small>genus</small>[[Micropsis]]</div></div>
|etymology=Generic name Micropus and Greek - opsis, resembling
|volume=Volume 19
|mention_page=page 26, 385, 388, 457, 464
|treatment_page=page 463
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole-organism some measurement;whole-organism duration"><b>Annuals,</b> 1–10 cm.</span> <span class="statement" id="st-d0_s1" data-properties="stem quantity;stem orientation;stem quantity;stem orientation"><b>Stems </b>1, ± erect, or 2–7, ascending to erect [decumbent].</span> <span class="statement" id="st-d0_s2" data-properties="leaf position"><b>Leaves </b>mostly cauline;</span> <span class="statement" id="st-d0_s3" data-properties="leaf arrangement">alternate;</span> <span class="statement" id="st-d0_s4" data-properties="blade shape">blades oblanceolate to spatulate [± linear].</span> <span class="statement" id="st-d0_s5" data-properties="pair arrangement;second-order glomerule density;second-order glomerule architecture"><b>Heads </b>borne singly or in pairs in dense [loose] spiciform [axillary] arrays or second-order glomerules.</span> <span class="statement" id="st-d0_s6" data-properties="involucre presence;involucre prominence"><b>Involucres </b>0 or inconspicuous.</span> <span class="statement" id="st-d0_s7" data-properties="phyllary presence;phyllary prominence;phyllary quantity;phyllary size"><b>Phyllaries </b>0, vestigial, or 1–5, unequal (similar to paleae).</span> <span class="statement" id="st-d0_s8" data-properties="receptacle shape;receptacle pubescence"><b>Receptacles </b>flat to pulvinate (heights 0–0.3 times diams.), glabrous.</span> <span class="statement" id="st-d0_s9" data-properties="palea architecture;palea duration;palea orientation;palea orientation;palea coloration"><b>Pistillate </b>paleae persistent, ± erect or incurved, yellowish to brownish;</span> <span class="statement" id="st-d0_s10" data-properties="body shape;body architecture;nerve quantity">bodies with 5+ nerves (nerves ± parallel, ± prominent), obovate to oblanceolate, open most of lengths (not enclosing florets);</span> <span class="statement" id="st-d0_s11" data-properties="wing orientation">wings incurved.</span> <span class="statement" id="st-d0_s12" data-properties="palea reproduction;palea duration;palea life cycle;palea quantity;palea orientation;palea height or length or size;palea variability;palea architecture"><b>Bisexual </b>paleae persistent or tardily falling, 2–7, erect (somewhat enlarged) in fruit, shorter than or equal to pistillate paleae;</span> <span class="statement" id="st-d0_s13" data-properties="body shape">bodies broadly lanceoloid to oblanceoloid (saccate [involute], each enclosing a floret, apices 2–3-fid [entire or erose]).</span> <span class="statement" id="st-d0_s14" data-properties="floret architecture;floret atypical quantity;floret quantity"><b>Pistillate </b>florets [2–8] 15–30.</span> <span class="statement" id="st-d0_s15" data-properties="floret architecture;floret presence"><b>Functionally </b>staminate florets 0.</span> <span class="statement" id="st-d0_s16" data-properties="floret reproduction;floret quantity"><b>Bisexual </b>florets 2–7;</span> <span class="statement" id="st-d0_s17" data-properties="corolla lobe atypical quantity;corolla lobe quantity;corolla lobe variability">corolla lobes 4 [–5], equal.</span> <span class="statement" id="st-d0_s18" data-properties="cypsela coloration;cypsela growth form;cypsela shape;cypsela shape;cypsela shape;cypsela orientation;cypsela shape;face pubescence"><b>Cypselae </b>± brownish, dimorphic: pistillate obcompressed, ellipsoid to obovoid (somewhat angular), incurved, not gibbous, faces densely strigose;</span> <span class="statement" id="st-d0_s19" data-properties="cypsela coloration;cypsela growth form;cypsela reproduction;cypsela shape;cypsela course;face pubescence">bisexual terete, straight, faces sparsely strigose [glabrescent];</span> <span class="statement" id="st-d0_s20" data-properties="cypsela coloration;cypsela growth form;corolla scar position">corolla scars apical;</span> <span class="statement" id="st-d0_s21" data-properties="cypsela coloration;cypsela growth form;pappus presence">pappi 0 (simulated by hairs of cypselae) [coroniform].</span><!--

-->{{Treatment/Body
|distribution=(possibly native) in s-c United States;s South America
|discussion=<p>Species 5 (1 in the flora.</p><!--
--><p>See discussion of Filagininae following the tribal description (p. 385).</p><!--
--><p>Micropsis species occur in moist or dry, often sandy or alkaline habitats of Mediterranean to humid temperate climates. Other than a recently discovered population in the flora area, Micropsis is known only from temperate South America. It appears to be monophyletic, with ancestors possibly near Evax or Stuartina Sonder (J. D. Morefield 1992). Micropsis is most easily recognized by bisexual paleae enlarged, ± saccate, usually apically lacerate, often distally gibbous, resembling straitjackets tightly enveloping their florets and cypselae, and pistillate cypselae densely strigose (known in other Filagininae only in Old World Evax and relatives).</p>
|tables=
|references={{Treatment/Reference
|id=beauverd1913b
|text=Beauverd, G. 1913b. Contribution à l’étude des Composées, suite VIII. IV. Le genre Micropsis DC. (emend. Beauverd). Bull. Soc. Bot. Genève, sér. 2, 5: 221–228.
}}
}}<!--

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-->{{#Taxon:
name=Micropsis
|author=James D. Morefield
|authority=de Candolle in A. P. de Candolle and A. L. P. P. de Candolle
|rank=genus
|parent rank=tribe
|synonyms=
|basionyms=
|family=Asteraceae
|illustrator=Linny Heagy
|illustration copyright=Flora of North America Association
|distribution=(possibly native) in s-c United States;s South America
|reference=beauverd1913b
|publication title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr.
|publication year=1836
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V19_774.xml
|tribe=Asteraceae tribe Gnaphalieae
|genus=Micropsis
|blade shape=oblanceolate;spatulate
|body architecture=open
|body shape=broadly lanceoloid;oblanceoloid
|corolla lobe atypical quantity=4;5
|corolla lobe quantity=4
|corolla lobe variability=equal
|corolla scar position=apical
|cypsela coloration=brownish;brownish;brownish;brownish
|cypsela course=straight
|cypsela growth form=dimorphic;dimorphic;dimorphic;dimorphic
|cypsela orientation=incurved
|cypsela reproduction=bisexual
|cypsela shape=terete;not gibbous;ellipsoid;obovoid
|face pubescence=strigose;strigose
|floret architecture=staminate;pistillate
|floret atypical quantity=2;8
|floret presence=absent
|floret quantity=2;7
|floret reproduction=bisexual
|involucre presence=absent
|involucre prominence=inconspicuous
|leaf arrangement=alternate
|leaf position=cauline
|pair arrangement=singly
|palea architecture=pistillate;pistillate
|palea coloration=yellowish;brownish
|palea duration=persistent;persistent
|palea height or length or size=shorter
|palea life cycle=falling
|palea orientation=erect;incurved;erect
|palea quantity=2;7
|palea reproduction=bisexual
|palea variability=equal
|pappus presence=absent
|phyllary presence=absent
|phyllary prominence=vestigial
|phyllary quantity=1;5
|phyllary size=unequal
|receptacle pubescence=glabrous
|receptacle shape=flat;pulvinate
|second-order glomerule architecture=spiciform
|second-order glomerule density=dense
|stem orientation=ascending;erect
|stem quantity=2;7
|whole-organism duration=annual
|whole-organism some measurement=1cm;10cm
|wing orientation=incurved
}}<!--

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