View source for Isocarpha ← Isocarpha 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=Isocarpha |accepted_authority=R. Brown |publications={{Treatment/Publication |title=Trans. Linn. Soc. London |place=12: 110. 1817 |year=1817 }} |common_names=Pearlhead |basionyms= |synonyms= |hierarchy=Asteraceae;Asteraceae tribe Eupatorieae;Isocarpha |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Eupatorieae]]</div><div class="higher-taxon"><small>genus</small>[[Isocarpha]]</div></div> |etymology=Greek iso -, same, and carphos, small dry body, evidently alluding to uniform receptacular paleae |volume=Volume 21 |mention_page=page 460 |treatment_page=page 490 }}<!-- --><span class="statement" id="st-d0_s0" data-properties="whole-organism some measurement;whole-organism duration;whole_organism some measurement;whole_organism growth form"><b>Perennials </b>or subshrubs [annuals], 10–150 cm.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem growth form or orientation"><b>Stems </b>usually erect, sometimes basally decumbent [creeping].</span> <span class="statement" id="st-d0_s2" data-properties=""><b>Leaves </b>cauline;</span> <span class="statement" id="st-d0_s3" data-properties="">mostly opposite (distal sometimes alternate) [alternate];</span> <span class="statement" id="st-d0_s4" data-properties="leaf position;leaf arrangement;leaf architecture;leaf architecture">petiolate or sessile;</span> <span class="statement" id="st-d0_s5" data-properties="blade architecture;blade arrangement or shape;blade arrangement or shape;margin architecture or shape;margin architecture or shape;face pubescence;face architecture;face arrangement or shape">blades ± 3-nerved, elliptic to narrowly lance-elliptic [ovate or lanceolate to linear], margins entire or serrulate [dentate], faces glabrate to weakly hirsutulous or pilosulous, glanddotted.</span> <span class="statement" id="st-d0_s6" data-properties="head architecture or shape;head arrangement;head arrangement;array arrangement or density;array architecture"><b>Heads </b>discoid, borne singly or in tight, corymbiform to subcapitate [paniculiform] arrays.</span> <span class="statement" id="st-d0_s7" data-properties="involucre shape;involucre diameter"><b>Involucres </b>± obconic, 4–6 mm diam.</span> <span class="statement" id="st-d0_s8" data-properties="phyllary duration;phyllary quantity;phyllary architecture;phyllary shape;phyllary variability;series quantity"><b>Phyllaries </b>persistent, 10–15+ in 2+ series, [1–] 2–3 [–6] -nerved, ovate or elliptic to lanceolate or linear, ± equal.</span> <span class="statement" id="st-d0_s9" data-properties="receptacle shape;receptacle architecture"><b>Receptacles </b>conic to columnar, paleate (paleae similar to inner phyllaries).</span> <span class="statement" id="st-d0_s10" data-properties="floret quantity"><b>Florets </b>60–200+;</span> <span class="statement" id="st-d0_s11" data-properties="corolla coloration;corolla coloration;lobe quantity;lobe shape">corollas white or pinkish, throats funnelform (lengths ca. 2 times diams.) [cylindric or campanulate], lobes 5, ± deltate;</span> <span class="statement" id="st-d0_s12" data-properties="base size;base pubescence;branch shape">styles: bases enlarged, glabrous [papillose], branches filiform.</span> <span class="statement" id="st-d0_s13" data-properties="cypsela shape;cypsela architecture or shape;cypsela pubescence"><b>Cypselae </b>prismatic, 5-ribbed, glabrous [pubescent];</span> <span class="statement" id="st-d0_s14" data-properties="">pappi 0.</span> <span class="statement" id="st-d0_s15" data-properties="pappus presence;x chromosome quantity">x = 10.</span><!-- -->{{Treatment/Body |distribution=s;c United States;Mexico;West Indies;Central America;South America |discussion=<p>Species 5 (1 in the flora).</p> |tables= |references={{Treatment/Reference |id=keil1981a |text=Keil, D. J. and T. F. Stuessy. 1981. Systematics of Isocarpha (Compositae: Eupatorieae). Syst. Bot. 6: 258–287. }} }}<!-- --><!-- -->{{#Taxon: name=Isocarpha |author=Guy L. Nesom |authority=R. Brown |rank=genus |parent rank=tribe |synonyms= |basionyms= |family=Asteraceae |distribution=s;c United States;Mexico;West Indies;Central America;South America |reference=keil1981a |publication title=Trans. Linn. Soc. London |publication year=1817 |special status= |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21_1234.xml |tribe=Asteraceae tribe Eupatorieae |genus=Isocarpha |array architecture=corymbiform;subcapitate |array arrangement or density=tight |base pubescence=glabrous |base size=enlarged |blade architecture=3-nerved |blade arrangement or shape=lance-elliptic;elliptic to narrowly |branch shape=filiform |corolla coloration=pinkish;white |cypsela architecture or shape=5-ribbed |cypsela pubescence=glabrous |cypsela shape=prismatic |face architecture=3-nerved |face arrangement or shape=elliptic to narrowly |face pubescence=glabrate;weakly hirsutulous or pilosulous |floret quantity=60;200 |head architecture or shape=discoid |head arrangement=in tight , corymbiform to subcapitate arrays;singly |involucre diameter=4mm;6mm |involucre shape=obconic |leaf architecture=sessile;petiolate |leaf arrangement=opposite |leaf position=cauline |lobe quantity=5 |lobe shape=deltate |margin architecture or shape=serrulate;entire |pappus presence=absent |phyllary architecture=[1-]2-3[-6]-nerved |phyllary duration=persistent |phyllary quantity=10;15 |phyllary shape=elliptic;lanceolate or linear |phyllary variability=equal |receptacle architecture=paleate |receptacle shape=conic;columnar |stem growth form or orientation=decumbent |stem orientation=erect |whole-organism duration=perennial |whole-organism some measurement=10cm;150cm |whole_organism growth form=subshrub |whole_organism some measurement=10cm;150cm |x chromosome quantity=10 }}<!-- -->[[Category:Treatment]][[Category:Asteraceae tribe Eupatorieae]] 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) Template:Treatment/Reference (view source) Return to Isocarpha.