View source for Trixis ← Trixis 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=Trixis |accepted_authority=P. Browne |publications={{Treatment/Publication |title=Civ. Nat. Hist. Jamaica, |place=312, plate 33, fig. 1. 1756 |year=1756 }} |common_names=Threefold |basionyms= |synonyms= |hierarchy=Asteraceae;Asteraceae tribe Mutisieae;Trixis |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Mutisieae]]</div><div class="higher-taxon"><small>genus</small>[[Trixis]]</div></div> |etymology=Greek trixos, 3-fold, describing the 3-cleft corolla |volume=Volume 19 |mention_page=page 12, 14, 59, 70, 71, 73, 76 |treatment_page=page 75 }}<!-- --><span class="statement" id="st-d0_s0" data-properties="whole_organism some measurement;whole_organism growth form"><b>Shrubs </b>[herbs], 20–300+ cm (often rhizomatous, stems hairy, hairs gland-tipped and glandless).</span> <span class="statement" id="st-d0_s1" data-properties=""><b>Leaves </b>cauline;</span> <span class="statement" id="st-d0_s2" data-properties="leaf position;leaf architecture;leaf architecture">sessile or petiolate;</span> <span class="statement" id="st-d0_s3" data-properties="blade shape;blade shape;blade shape;blade shape;blade shape;blade shape;base shape;margin architecture or shape;margin architecture or shape;face architecture or function or pubescence;face pubescence">blades elliptic, lanceolate, linear, or linear-lanceolate, bases cuneate, margins dentate or entire, faces (at least abaxial) usually glandular and ± strigose.</span> <span class="statement" id="st-d0_s4" data-properties="head architecture or arrangement;head arrangement;head arrangement;array architecture;array architecture"><b>Heads </b>quasi-radiate (see florets), borne singly or in corymbiform or paniculiform arrays.</span> <span class="statement" id="st-d0_s5" data-properties="involucre shape;involucre some measurement"><b>Involucres </b>± cylindric, 12–15 mm (subtended by calyculi of 3–7 spreading or ascending bractlets).</span> <span class="statement" id="st-d0_s6" data-properties="phyllary arrangement or course or shape;series quantity;apex shape"><b>Phyllaries </b>(reflexed in fruit) in 1–2 series, linear (± keeled), apices acute.</span> <span class="statement" id="st-d0_s7" data-properties="receptacle prominence or shape;receptacle architecture or pubescence or relief;receptacle pubescence;receptacle architecture"><b>Receptacles </b>flat, smooth, hairy, epaleate.</span> <span class="statement" id="st-d0_s8" data-properties="floret atypical quantity;floret quantity;floret reproduction;floret reproduction"><b>Florets </b>4–25 [–60], bisexual, fertile;</span> <span class="statement" id="st-d0_s9" data-properties="corolla coloration;corolla architecture">corollas yellow (aging white), zygomorphic (2-lipped; outer lip liguliform, lobes 3, lance-deltate, inner lip smaller, lobes ± filiform, recurved);</span> <span class="statement" id="st-d0_s10" data-properties="basal appendage architecture or shape;apical appendage shape;apical appendage shape">anther basal appendages entire, apical appendages oblong, acute;</span> <span class="statement" id="st-d0_s11" data-properties="style-branch height or length or size;apex shape">style-branches relatively short, apices truncate-penicillate.</span> <span class="statement" id="st-d0_s12" data-properties="cypsela shape;cypsela architecture or shape;rib quantity;face pubescence"><b>Cypselae </b>subcylindric to fusiform, often ± beaked, ribs 5, faces glandular-hairy;</span> <span class="statement" id="st-d0_s13" data-properties="bristle quantity;bristle reflectance;bristle coloration;bristle architecture or shape">pappi of 60–80+ dull white [tawny], finely barbed bristles.</span> <span class="statement" id="st-d0_s14" data-properties="x chromosome quantity">x = 9.</span><!-- -->{{Treatment/Body |distribution=North America;Mexico;West Indies;Central America;South America |discussion=<p>Species ca. 65 (2 in the flora).</p> |tables= |references={{Treatment/Reference |id=anderson1972a |text=Anderson, C. E. 1972. A monograph of the Mexican and Central American species of Trixis (Compositae). Mem. New York Bot. Gard. 22(3): 1–68. }} }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Leaves usually ascending, almost parallel with stems, stomates on both faces, induments: abaxial faces glandular and sparsely strigose (sometimes only on veins), adaxial faces glandular and strigose to pilose; papilla-like double hairs of cypselae producing mucilage when wetted |[[Trixis californica|Trixis californica]] |-id=key-0-1 |1 |Leaves usually spreading, stomates on abaxial faces, induments: margins and, sometimes, abaxial midveins with glandless and glandular hairs, otherwise glabrous; papilla-like double hairs of cypselae not producing mucilage when wetted |[[Trixis inula|Trixis inula]] |} </div></div><!-- -->{{#Taxon: name=Trixis |author=David J. Keil |authority=P. Browne |rank=genus |parent rank=tribe |synonyms= |basionyms= |family=Asteraceae |distribution=North America;Mexico;West Indies;Central America;South America |reference=anderson1972a |publication title=Civ. Nat. Hist. Jamaica, |publication year=1756 |special status= |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V19_11.xml |tribe=Asteraceae tribe Mutisieae |genus=Trixis |apex shape=truncate-penicillate;acute |apical appendage shape=acute;oblong |array architecture=paniculiform;corymbiform |basal appendage architecture or shape=entire |base shape=cuneate |blade shape=linear-lanceolate;linear;linear-lanceolate;linear;lanceolate;elliptic |bristle architecture or shape=barbed |bristle coloration=white |bristle quantity=60;80 |bristle reflectance=dull |corolla architecture=zygomorphic |corolla coloration=yellow |cypsela architecture or shape=beaked |cypsela shape=subcylindric;fusiform |face architecture or function or pubescence=glandular |face pubescence=glandular-hairy;strigose |floret atypical quantity=25;60 |floret quantity=4;25 |floret reproduction=fertile;bisexual |head architecture or arrangement=quasi-radiate |head arrangement=in corymbiform or paniculiform arrays;singly |involucre shape=cylindric |involucre some measurement=12mm;15mm |leaf architecture=petiolate;sessile |leaf position=cauline |margin architecture or shape=entire;dentate |phyllary arrangement or course or shape=linear |receptacle architecture=epaleate |receptacle architecture or pubescence or relief=smooth |receptacle prominence or shape=flat |receptacle pubescence=hairy |rib quantity=5 |series quantity=1;2 |style-branch height or length or size=short |whole_organism growth form=shrub |whole_organism some measurement=20cm;300cm |x chromosome quantity=9 }}<!-- -->[[Category:Treatment]][[Category:Asteraceae tribe Mutisieae]] 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 Trixis.