View source for Stewartia ← Stewartia 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=Stewartia |accepted_authority=I. Lawson in C. Linnaeus |publications={{Treatment/Publication |title=Sp. Pl. |place=2: 698. 1753 |year=1753 }}, {{Treatment/Publication |title=Gen. Pl. ed. |place=5, 311. 1754 , }} |basionyms= |synonyms={{Treatment/ID/Synonym |name=Hartia |authority=Dunn |rank=genus }} |hierarchy=Theaceae;Stewartia |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Theaceae]]</div><div class="higher-taxon"><small>genus</small>[[Stewartia]]</div></div> |etymology=For John Stuart, 1713–1792, Third Earl of Bute |volume=Volume 8 |mention_page=page 322, 323, 324 |treatment_page=page 326 }}<!-- --><span class="statement" id="st-d0_s0" data-properties="whole_organism atypical some measurement;whole_organism some measurement;whole_organism growth form;whole_organism atypical some measurement;whole_organism some measurement;whole_organism growth form"><b>Shrubs </b>or trees, 3–6 [–20] m.</span> <span class="statement" id="st-d0_s1" data-properties="stem quantity"><b>Stems </b>usually 1;</span> <span class="statement" id="st-d0_s2" data-properties="bark width;bark relief;bark relief">bark thin, closely fissured or exfoliating.</span> <span class="statement" id="st-d0_s3" data-properties="leaf duration"><b>Leaves </b>deciduous [persistent];</span> <span class="statement" id="st-d0_s4" data-properties="petiole fusion;petiole architecture">petiole distinct from blade, winged;</span> <span class="statement" id="st-d0_s5" data-properties="blade shape;blade pubescence or texture;base shape;margin architecture or relief;margin architecture or shape;apex shape;vein prominence;vein atypical quantity;vein quantity;midrib prominence">blade ovate to elliptic, chartaceous [coriaceous], base cuneate to attenuate or rounded, margins erose or serrulate, apex acute to acuminate, veins conspicuous, 5–8 [–12] pairs, midrib elevated abaxially.</span> <span class="statement" id="st-d0_s6" data-properties="inflorescence bract duration;inflorescence bract quantity;inflorescence bract position"><b>Inflorescence </b>bracts usually persistent, 1–2, immediately proximal to calyx.</span> <span class="statement" id="st-d0_s7" data-properties="pedicel shape;pedicel atypical some measurement;pedicel some measurement"><b>Pedicels </b>terete, 0.2–0.7 [–4] cm.</span> <span class="statement" id="st-d0_s8" data-properties="flower diameter;flower diameter;flower diameter"><b>Flowers </b>[2–] (5–) 6–10 (–12) cm diam.;</span> <span class="statement" id="st-d0_s9" data-properties="sepal duration;sepal quantity;sepal fusion;sepal shape;sepal architecture or shape;sepal width;sepal texture;margin architecture or pubescence or shape;apex shape;apex pubescence">sepals persistent, 5, connate proximally, concave, leaflike, thick and becoming lignified proximally, margins ciliate, apex acute, sericeous;</span> <span class="statement" id="st-d0_s10" data-properties="petal atypical quantity;petal quantity;petal fusion;petal coloration;petal coloration;petal size;base pubescence;base size;margin shape;margin architecture or relief;outermost petal course;abaxial surface pubescence;abaxial surface pubescence">petals 5 (–8), connate proximally, white or creamy white, unequal, base pubescent and constricted, margins crenulate to erose, outermost petal slightly curved, abaxial surface silky or pubescent;</span> <span class="statement" id="st-d0_s11" data-properties="stamen atypical quantity;stamen atypical quantity;stamen quantity;stamen fusion">stamens (50–) 75–125 (–150), connate basally;</span> <span class="statement" id="st-d0_s12" data-properties="pistil architecture">pistil (4–) 5 (–6) -carpellate;</span> <span class="statement" id="st-d0_s13" data-properties="ovule quantity">ovules 2–4 per locule;</span> <span class="statement" id="st-d0_s14" data-properties="style quantity;style quantity">styles 1 or 5;</span> <span class="statement" id="st-d0_s15" data-properties="stigma shape;stigma shape">stigmas [4–] 5 [–6] -lobed or unlobed.</span> <span class="statement" id="st-d0_s16" data-properties="capsule coloration;capsule shape;base shape;apex shape;apex dehiscence"><b>Capsules </b>brown, conic, base rounded, apex acute, dehiscence loculicidal;</span> <span class="statement" id="st-d0_s17" data-properties="columella presence">columella absent.</span> <span class="statement" id="st-d0_s18" data-properties="seed atypical quantity;seed quantity;seed coloration;seed coloration;seed shape;seed shape;seed shape;seed shape;seed shape;seed architecture or shape;seed architecture or pubescence or relief"><b>Seeds </b>2 (–4), brown or reddish-brown, angular, lenticular, or planoconvex, asymmetric, smooth, marginal wing present or absent.</span> <span class="statement" id="st-d0_s19" data-properties="marginal wing presence;marginal wing presence;x chromosome quantity;x chromosome atypical quantity">x = 15 (18).</span><!-- -->{{Treatment/Body |distribution=c;e United States;Asia |discussion=<p>Species ca. 20 (2 in the flora).</p><!-- --><p>Both species of Stewartia in the flora area are uncommon; they are protected in most of the states in which they occur, but not federally. They overlap only in relatively small portions of their ranges: the Virginia Coastal Plain (unusual for S. ovata) and in Alabama. They usually occur at different elevations and habitats.</p><!-- --><p>Most species of Stewartia are distributed in Asia (China, Japan, Korea). The North American species are deciduous but are more closely related to the persistent-leaved Asian taxa than to the deciduous ones. The persistent-leaved taxa are sometimes treated under the genus Hartia, recognition of which is not supported by DNA sequence analyses (L. M. Prince 2002; Xiang Q. Y. et al. 2004).</p> |tables= |references= }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Winter bud scales 2, terminal bud exposed; petiole wings 0.1-1 mm wide; primary leaf veins in 7-8 pairs; inflorescence bracts 2, 2-4 mm; anthers bluish; styles 1; seeds lustrous. |[[Stewartia malacodendron|Stewartia malacodendron]] |-id=key-0-1 |1 |Winter bud scales 1, terminal bud hidden; petiole wings 1-2 mm wide; primary leaf veins in 5-7 pairs; inflorescence bracts 1, 10-15 mm; anthers yellow; styles 5; seeds dull. |[[Stewartia ovata|Stewartia ovata]] |} </div></div><!-- -->{{#Taxon: name=Stewartia |authority=I. Lawson in C. Linnaeus |rank=genus |parent rank=family |synonyms=Hartia |basionyms= |family=Theaceae |distribution=c;e United States;Asia |reference=None |publication title=Sp. Pl.;Gen. Pl. ed. |publication year=1753; |special status= |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V8/V8_649.xml |genus=Stewartia |abaxial surface pubescence=pubescent;silky |apex dehiscence=loculicidal |apex pubescence=sericeous |apex shape=acute;acute;acute;acuminate |bark relief=exfoliating;fissured |bark width=thin |base pubescence=pubescent |base shape=rounded;cuneate;attenuate or rounded |base size=constricted |blade pubescence or texture=chartaceous |blade shape=ovate;elliptic |capsule coloration=brown |capsule shape=conic |columella presence=absent |flower diameter=6cm;10cm |inflorescence bract duration=persistent |inflorescence bract position=proximal |inflorescence bract quantity=1;2 |leaf duration=deciduous |margin architecture or pubescence or shape=ciliate |margin architecture or relief=erose;erose |margin architecture or shape=serrulate |margin shape=crenulate |marginal wing presence=absent;absent |midrib prominence=elevated |outermost petal course=curved |ovule quantity=2;4 |pedicel atypical some measurement=0.7cm;4cm |pedicel shape=terete |pedicel some measurement=0.2cm;0.7cm |petal atypical quantity=5;8 |petal coloration=creamy white;white |petal fusion=connate |petal quantity=5 |petal size=unequal |petiole architecture=winged |petiole fusion=distinct |pistil architecture=(4-)5(-6)-carpellate |seed architecture or pubescence or relief=smooth |seed architecture or shape=asymmetric |seed atypical quantity=2;4 |seed coloration=reddish-brown;brown |seed quantity=2 |seed shape=planoconvex;lenticular;planoconvex;lenticular;angular |sepal architecture or shape=leaflike |sepal duration=persistent |sepal fusion=connate |sepal quantity=5 |sepal shape=concave |sepal texture=lignified |sepal width=thick |stamen atypical quantity=125;150 |stamen fusion=connate |stamen quantity=75;125 |stem quantity=1 |stigma shape=unlobed;[4-]5[-6]-lobed |style quantity=5;1 |vein atypical quantity=8;12 |vein prominence=conspicuous |vein quantity=5;8 |whole_organism atypical some measurement=6m;20m |whole_organism growth form=tree;shrub |whole_organism some measurement=3m;6m |x chromosome atypical quantity=18 |x chromosome quantity=15 }}<!-- -->[[Category:Treatment]][[Category:Theaceae]] Templates used on this page: Template:Theaceae (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/ID/Synonym (view source) Template:Treatment/Publication (view source) Return to Stewartia.