View source for Lagascea

{{Treatment/ID
|accepted_name=Lagascea
|accepted_authority=Cavanilles
|publications={{Treatment/Publication
|title=Anales Ci. Nat.
|place=6: 331. 1803
|year=1803
}}
|common_names=Doll’s-head;acuate;silk-leaf;velvet-bush
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Helianthinae;Lagascea
|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 Helianthinae]]</div><div class="higher-taxon"><small>genus</small>[[Lagascea]]</div></div>
|etymology=For Mariano Lagasca y Segura, Spanish botanist at the Madrid Botanical Garden
|volume=Volume 21
|mention_page=page 135
|treatment_page=page 136
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism atypical some measurement;whole_organism some measurement;whole_organism growth form"><b>Shrubs </b>[annuals, perennials], to 50–100 [–300] cm.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem architecture"><b>Stems </b>erect [ascending to decumbent], branched from bases or ± throughout.</span> <span class="statement" id="st-d0_s2" data-properties=""><b>Leaves </b>cauline;</span> <span class="statement" id="st-d0_s3" data-properties="">opposite;</span> <span class="statement" id="st-d0_s4" data-properties="leaf position;leaf arrangement;leaf architecture">petiolate [sessile];</span> <span class="statement" id="st-d0_s5" data-properties="blade architecture;blade shape;base shape;margin architecture or shape;face pubescence;face pubescence">blades 3-nerved, lanceovate to ovate [lanceolate to oblanceolate], bases broadly cuneate [to subauriculate], margins ± serrate, faces usually sericeous to strigose or glabrate, often stipitate-glandular.</span> <span class="statement" id="st-d0_s6" data-properties="head architecture or shape;glomerule shape;head atypical quantity;head quantity;head architecture;glomerule arrangement;glomerule arrangement"><b>Heads </b>discoid, borne in headlike glomerules (of [8–] 30–50+, 1 (–2) [–8] -flowered heads, glomerules borne singly or in ± corymbiform [racemiform] arrays).</span> <span class="statement" id="st-d0_s7" data-properties=""><b>Involucres </b>cylindric, 1–2 mm diam.</span> <span class="statement" id="st-d0_s8" data-properties="involucre shape;involucre diameter">(glomerules of heads usually subtended by leaves or ± foliaceous bracts).</span> <span class="statement" id="st-d0_s9" data-properties="phyllary duration;phyllary atypical quantity;phyllary quantity;series quantity"><b>Phyllaries </b>persistent, 4–5 [–8+] in ± 1 series (linear-attenuate, proximally connate, often 1 or more with 1 [–3+] glands in abaxial face).</span> <span class="statement" id="st-d0_s10" data-properties="receptacle shape;receptacle architecture"><b>Receptacles </b>convex (often hirtellous), rarely paleate (paleae linear).</span> <span class="statement" id="st-d0_s11" data-properties="ray-floret presence"><b>Ray-</b>florets 0.</span> <span class="statement" id="st-d0_s12" data-properties="disc-floret atypical quantity;disc-floret quantity;disc-floret reproduction;disc-floret reproduction"><b>Disc-</b>florets 1 (–2) [–8], bisexual, fertile;</span> <span class="statement" id="st-d0_s13" data-properties="corolla coloration;tube height or length or size;throat shape;lobe quantity;lobe shape">corollas yellow [white, pink, or red], tubes shorter than cylindric to campanulate throats, lobes 5, lance-linear to lanceovate [rounded-deltate] (often hairy).</span> <span class="statement" id="st-d0_s14" data-properties="cypsela shape"><b>Cypselae </b>(brown to black) narrowly cylindric to obovoid or clavate (faces glabrous or pilosulous, minutely grooved);</span> <span class="statement" id="st-d0_s15" data-properties="">pappi ± coroniform.</span> <span class="statement" id="st-d0_s16" data-properties="pappus shape;x chromosome quantity">x = 17.</span><!--

-->{{Treatment/Body
|distribution=sw United States;Mexico;Central America (to Nicaragua);in West Indies;South America;Asia (India);Asia (Java);Asia (Sri Lanka);Asia (Thailand);Africa;Pacific Islands (Hawaii)
|discussion=<p>Species 8 (1 in the flora).</p><!--
--><p>Lagascea mollis Cavanilles, now a nearly pantropical weed, was collected at Apalachicola, Franklin County, Florida (Chapman, n.d., presumably ca. 1860), evidently from an ephemeral population, probably from ballast.</p>
|tables=
|references={{Treatment/Reference
|id=harris1994a
|text=Harris, E. M. 1994. Developmental evidence for the derivation of syncephalia in Lagascea (Heliantheae; Asteraceae). Amer. J. Bot. 81: 1139–1148.
}}{{Treatment/Reference
|id=stuessy1976a
|text=Stuessy, T. F. 1976. A systematic review of the subtribe Lagasceinae (Compositae, Heliantheae). Amer. J. Bot. 63: 1289–1294.
}}{{Treatment/Reference
|id=stuessy1978a
|text=Stuessy, T. F. 1978. Revision of Lagascea (Compositae, Heliantheae). Fieldiana, Bot. 38: 75–133.
}}
}}<!--

--><!--

-->{{#Taxon:
name=Lagascea
|author=Elizabeth M. Harris
|authority=Cavanilles
|rank=genus
|parent rank=subtribe
|synonyms=
|basionyms=
|family=Asteraceae
|illustrator=Barbara Alongi
|illustration copyright=Flora of North America Association
|distribution=sw United States;Mexico;Central America (to Nicaragua);in West Indies;South America;Asia (India);Asia (Java);Asia (Sri Lanka);Asia (Thailand);Africa;Pacific Islands (Hawaii)
|reference=harris1994a;stuessy1976a;stuessy1978a
|publication title=Anales Ci. Nat.
|publication year=1803
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21_330.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Helianthinae
|genus=Lagascea
|base shape=cuneate
|blade architecture=3-nerved
|blade shape=lanceovate;ovate
|corolla coloration=yellow
|cypsela shape=narrowly cylindric;obovoid or clavate
|disc-floret atypical quantity=1;2
|disc-floret quantity=1
|disc-floret reproduction=fertile;bisexual
|face pubescence=stipitate-glandular;usually sericeous;strigose or glabrate
|glomerule arrangement=in more or less corymbiform arrays;singly
|glomerule shape=headlike
|head architecture=1(-2)[-8]-flowered
|head architecture or shape=discoid
|head atypical quantity=8;30
|head quantity=30;50
|involucre diameter=1mm;2mm
|involucre shape=cylindric
|leaf architecture=petiolate
|leaf arrangement=opposite
|leaf position=cauline
|lobe quantity=5
|lobe shape=lance-linear;lanceovate
|margin architecture or shape=serrate
|pappus shape=coroniform
|phyllary atypical quantity=5;8
|phyllary duration=persistent
|phyllary quantity=4;5
|ray-floret presence=absent
|receptacle architecture=paleate
|receptacle shape=convex
|series quantity=1
|stem architecture=branched
|stem orientation=erect
|throat shape=cylindric;campanulate
|tube height or length or size=shorter
|whole_organism atypical some measurement=100cm;300cm
|whole_organism growth form=shrub
|whole_organism some measurement=50cm;100cm
|x chromosome quantity=17
}}<!--

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