View source for Dicoria ← Dicoria You do not have permission to edit this page, for the following reason: The action you have requested is limited to users in the group: Users. You can view and copy the source of this page. {{Treatment/ID |accepted_name=Dicoria |accepted_authority=Torrey & A. Gray in W. H. Emory |publications={{Treatment/Publication |title=in W. H. Emory, Rep. U.S. Mex. Bound. |place=2(1): 86, plate 30. 1859 |year=1859 }} |basionyms= |synonyms= |hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Ambrosiinae;Dicoria |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Heliantheae]]</div><div class="higher-taxon"><small>subtribe</small>[[Asteraceae (tribe Heliantheae) subtribe Ambrosiinae]]</div><div class="higher-taxon"><small>genus</small>[[Dicoria]]</div></div> |etymology=Greek di, two, and koris, bug, alluding to the two, “buglike” cypselae of the original species |volume=Volume 21 |mention_page=page 8, 9 |treatment_page=page 24 }}<!-- --><span class="statement" id="st-d0_s0" data-properties="whole-organism duration;whole-organism some measurement;whole-organism duration;whole_organism growth form"><b>Annuals,</b> perennials, or subshrubs [shrubs], 10–90+ cm.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem architecture"><b>Stems </b>erect, virgately to divaricately branched.</span> <span class="statement" id="st-d0_s2" data-properties=""><b>Leaves </b>cauline;</span> <span class="statement" id="st-d0_s3" data-properties="">proximally opposite (first 2–10+ pairs in early growth, Feb–Apr), otherwise alternate;</span> <span class="statement" id="st-d0_s4" data-properties="leaf position;leaf arrangement;leaf arrangement;leaf architecture">petiolate;</span> <span class="statement" id="st-d0_s5" data-properties="blade shape;margin shape;margin shape;face pubescence;hair relief;hair orientation">blades (3-nerved) lance-linear to lanceolate (proximal) or ± deltate or ovate to elliptic or lanceolate (distal), margins entire or toothed, faces sericeous to strigillose, sometimes with coarser, erect hairs, usually glanddotted as well.</span> <span class="statement" id="st-d0_s6" data-properties="head architecture or shape;head architecture or shape;array architecture"><b>Heads </b>disciform or discoid (then functionally staminate), in (mostly ebracteate) racemiform to paniculiform arrays [borne singly or loosely aggregated in 2s or 3s].</span> <span class="statement" id="st-d0_s7" data-properties="involucre shape;involucre diameter"><b>Involucres </b>± cupshaped to saucer-shaped, 3–5+ mm diam.</span> <span class="statement" id="st-d0_s8" data-properties="phyllary duration;phyllary life cycle;phyllary fusion;outer phyllary atypical quantity;outer phyllary atypical quantity;outer phyllary quantity;outer phyllary growth form or texture;series quantity;inner phyllary quantity;inner phyllary texture"><b>Phyllaries </b>persistent (outer) or tardily falling, distinct, outer (4–) 5 (–7) in 1 series, ± herbaceous, inner 0–4 (each subtending a pistillate floret), scarious to membranous (accrescent, ultimately ovate to elliptic in fruit).</span> <span class="statement" id="st-d0_s9" data-properties="receptacle shape"><b>Receptacles </b>convex;</span> <span class="statement" id="st-d0_s10" data-properties="palea shape;palea texture;palea pubescence;palea quantity">paleae cuneiform to linear, membranous, ± villous to hispid distally, sometimes wanting.</span> <span class="statement" id="st-d0_s11" data-properties="floret architecture;floret atypical quantity;floret quantity"><b>Pistillate </b>florets (0–) 1–4;</span> <span class="statement" id="st-d0_s12" data-properties="corolla presence">corollas 0.</span> <span class="statement" id="st-d0_s13" data-properties="floret architecture;floret quantity"><b>Functionally </b>staminate florets 5–15+;</span> <span class="statement" id="st-d0_s14" data-properties="corolla coloration;lobe quantity;lobe orientation;lobe orientation;lobe orientation;lobe orientation;lobe orientation">corollas whitish, funnelform, lobes 5, erect, reflexed, or incurved (anthers distinct or weakly coherent).</span> <span class="statement" id="st-d0_s15" data-properties="cypsela shape;cypsela shape;cypsela shape;margin architecture;margin shape;face architecture or pubescence or relief;face pubescence or relief"><b>Cypselae </b>strongly obcompressed, often slightly cucullate, ± obovate to elliptic, margins corky-winged, irregularly toothed, faces smooth or warty, sometimes glanddotted;</span> <span class="statement" id="st-d0_s16" data-properties="">pappi 0 (cypselae often each with apical tuft of white hairs).</span> <span class="statement" id="st-d0_s17" data-properties="pappus presence;x chromosome quantity">x = 18.</span><!-- -->{{Treatment/Body |distribution=w North America;nw Mexico |discussion=<p>Species 2 (1 in the flora).</p><!-- --><p>Traits that have been used to distinguish species and/or infraspecific taxa of dicorias in the flora (presence/absence of erect hairs on stems, shape, size, and toothing of distal leaves, size of cypselae, and relative development of inner phyllaries; A. Cronquist 1994) vary and combine so capriciously that I find no justification for recognition of more than a single, polymorphic species in the flora area.</p> |tables= |references= }}<!-- --><!-- -->{{#Taxon: name=Dicoria |author=John L. Strother |authority=Torrey & A. Gray in W. H. Emory |rank=genus |parent rank=subtribe |synonyms= |basionyms= |family=Asteraceae |illustrator=Marjorie C. Leggitt |illustration copyright=Flora of North America Association |distribution=w North America;nw Mexico |reference=None |publication title=in W. H. Emory, Rep. U.S. Mex. Bound. |publication year=1859 |special status= |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21_39.xml |tribe=Asteraceae tribe Heliantheae |subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae |genus=Dicoria |array architecture=racemiform;paniculiform |blade shape=lance-linear;lanceolate or more or less deltate or ovate |corolla coloration=whitish |corolla presence=absent |cypsela shape=less obovate;elliptic |face architecture or pubescence or relief=smooth |face pubescence=sericeous;strigillose |face pubescence or relief=warty |floret architecture=staminate;pistillate |floret atypical quantity=0;1 |floret quantity=5;15 |hair orientation=erect |hair relief=coarser |head architecture or shape=discoid;disciform |inner phyllary quantity=0;4 |inner phyllary texture=scarious;membranous |involucre diameter=3mm;5mm |involucre shape=less cupshaped;saucer-shaped |leaf architecture=petiolate |leaf arrangement=alternate;opposite |leaf position=cauline |lobe orientation=incurved;reflexed;incurved;reflexed;erect |lobe quantity=5 |margin architecture=corky-winged |margin shape=toothed;toothed;entire |outer phyllary atypical quantity=5;7 |outer phyllary growth form or texture=herbaceous |outer phyllary quantity=5 |palea pubescence=less villous;hispid |palea quantity=wanting |palea shape=cuneiform;linear |palea texture=membranous |pappus presence=absent |phyllary duration=persistent |phyllary fusion=distinct |phyllary life cycle=falling |receptacle shape=convex |series quantity=1 |stem architecture=branched |stem orientation=erect |whole-organism duration=perennial;annual |whole-organism some measurement=10cm;90cm |whole_organism growth form=subshrub |x chromosome quantity=18 }}<!-- -->[[Category:Treatment]][[Category:Asteraceae (tribe Heliantheae) subtribe Ambrosiinae]] Templates used on this page: Template:Asteraceae (view source) Template:Treatment/AuthorLink (view source) Template:Treatment/Body (view source) Template:Treatment/Body/Maps (view source) Template:Treatment/ID (view source) Template:Treatment/Publication (view source) Return to Dicoria.