View source for Trema ← Trema 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=Trema |accepted_authority=Loureiro |publications={{Treatment/Publication |title=Fl. Cochinch. |place=2: 562. 1790 |year=1790 }} |common_names=Trema;nettletree |basionyms= |synonyms= |hierarchy=Ulmaceae;Trema |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Ulmaceae]]</div><div class="higher-taxon"><small>genus</small>[[Trema]]</div></div> |volume=Volume 3 |mention_page= |treatment_page= }}<!-- --><span class="statement" id="st-d0_s0" data-properties="whole_organism growth form or shape;whole_organism some measurement;whole_organism growth form;whole_organism growth form or shape;whole_organism some measurement;whole_organism growth form"><b>Trees </b>or shrubs, spindly, to 15 m;</span> <span class="statement" id="st-d0_s1" data-properties="crown variability">crowns variable.</span> <span class="statement" id="st-d0_s2" data-properties="bark coloration;bark coloration;bark architecture or pubescence or relief;bark architecture;bark pubescence or relief"><b>Bark </b>dark-brown or gray brown, smooth, shallowly furrowed, sometimes sometimes appearing warty with large, raised lenticels.</span> <span class="statement" id="st-d0_s3" data-properties="branch architecture;branch fragility or size"><b>Branches </b>unarmed, stout;</span> <span class="statement" id="st-d0_s4" data-properties="twig pubescence;twig pubescence">twigs hoary tomentose.</span> <span class="statement" id="st-d0_s5" data-properties="stipule duration"><b>Leaves:</b> stipules ephemeral.</span> <span class="statement" id="st-d0_s6" data-properties="leaf-blade shape;base shape;margin shape"><b>Leaf-</b>blade: ovate, base oblique to cordate or truncate, margins crenate to serrate;</span> <span class="statement" id="st-d0_s7" data-properties="leaf-blade architecture;leaf-blade architecture or shape">venation palmate at base, pinnate on remainder of blade.</span> <span class="statement" id="st-d0_s8" data-properties="inflorescences cyme arrangement or architecture;inflorescences cyme architecture"><b>Inflorescences </b>cymes, compact to lax, 12-20-flowered.</span> <span class="statement" id="st-d0_s9" data-properties="flower reproduction;flower architecture;flower architecture;flower architecture;stem life cycle;series quantity"><b>Flowers </b>mostly unisexual, usually staminate and pistillate on same plants, appearing after leaves on new stems, in 1 series, pedicellate;</span> <span class="statement" id="st-d0_s10" data-properties="calyx shape">calyx 5-parted.</span> <span class="statement" id="st-d0_s11" data-properties="flower reproduction;flower presence;pedicel presence"><b>Bisexual </b>flowers, if present: pedicel present;</span> <span class="statement" id="st-d0_s12" data-properties="flower reproduction;flower presence;ovary shape">ovaries ± globose;</span> <span class="statement" id="st-d0_s13" data-properties="flower reproduction;flower presence;style duration;style quantity;style pubescence">styles persistent, 2, glabrous;</span> <span class="statement" id="st-d0_s14" data-properties="flower reproduction;flower presence;stigma quantity;stigma architecture">stigmas 2, unbranched.</span> <span class="statement" id="st-d0_s15" data-properties="flower architecture;flower architecture"><b>Staminate </b>flowers: nearly sessile;</span> <span class="statement" id="st-d0_s16" data-properties="flower architecture;pistillode presence">pistillodes present.</span> <span class="statement" id="st-d0_s17" data-properties="flower architecture;pedicel presence"><b>Pistillate </b>flowers: pedicel present;</span> <span class="statement" id="st-d0_s18" data-properties="flower architecture;staminode presence">staminodes absent.</span> <span class="statement" id="st-d0_s19" data-properties="fruits drupe shape;fruits drupe texture"><b>Fruits </b>drupes, globose, fleshy.</span> <span class="statement" id="st-d0_s20" data-properties="stone width;stone architecture"><b>Stones </b>thick walled.</span><!-- -->{{Treatment/Body |distribution=Tropical and subtropical regions;North America (Fla.);Mexico;West Indies;Central America;South America (to n Argentina);Asia;and Africa |discussion=<p>Species ca. 15 (2 in the flora).</p><!-- --><p>Trema cannabina Loureiro and T. orientalis (Linnaeus) Blume, sometimes reported for North America, are Old World species occasionally planted but not known to have escaped from cultivation.</p><!-- --><p>Trema species are fast-growing pioneer trees with economically important alkaloids.</p><!-- --><p>Trema is a member of the subfamily Celtoideae. Species are locally called nettletrees in reference to their superficial resemblance to members of the Urticaceae. Further studies of variation in this group are needed in the field and in the laboratory, giving special consideration to the morphologic variants within Trema micrantha.</p> |tables= |references= }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Leaf blade mostly longer than 5 cm, abaxially velvety white-pubescent, veins conspicuous but scarcely raised; fruits bright red-orange to yellow. |[[Trema micrantha|Trema micrantha]] |-id=key-0-1 |1 |Leaf blade mostly shorter than 4 cm, harshly pubescent on both surfaces, venation abaxially pronounced, raised; fruits pink. |[[Trema lamarckiana|Trema lamarckiana]] |} </div></div><!-- -->{{#Taxon: name=Trema |author=Leila M. Schultz |authority=Loureiro |rank=genus |parent rank=family |synonyms= |basionyms= |family=Ulmaceae |distribution=Tropical and subtropical regions;North America (Fla.);Mexico;West Indies;Central America;South America (to n Argentina);Asia;and Africa |reference=None |publication title=Fl. Cochinch. |publication year=1790 |special status= |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V3/V3_805.xml |genus=Trema |bark architecture=furrowed |bark architecture or pubescence or relief=smooth |bark coloration=gray brown;dark-brown |bark pubescence or relief=warty |base shape=oblique;cordate or truncate |branch architecture=unarmed |branch fragility or size=stout |calyx shape=5-parted |crown variability=variable |flower architecture=pistillate;pistillate;staminate;sessile;staminate;pedicellate;pistillate;staminate |flower presence=absent;absent;absent;absent |flower reproduction=bisexual;bisexual;bisexual;bisexual;unisexual |fruits drupe shape=globose |fruits drupe texture=fleshy |inflorescences cyme architecture=12-20-flowered |inflorescences cyme arrangement or architecture=compact to lax |leaf-blade architecture=palmate |leaf-blade architecture or shape=pinnate |leaf-blade shape=ovate |margin shape=crenate;serrate |ovary shape=globose |pedicel presence=absent;absent |pistillode presence=absent |series quantity=1 |staminode presence=absent |stem life cycle=new |stigma architecture=unbranched |stigma quantity=2 |stipule duration=ephemeral |stone architecture=walled |stone width=thick |style duration=persistent |style pubescence=glabrous |style quantity=2 |twig pubescence=tomentose;hoary |whole_organism growth form=shrub;tree |whole_organism growth form or shape=spindly;spindly |whole_organism some measurement=0m;15m }}<!-- -->[[Category:Treatment]][[Category:Ulmaceae]] Templates used on this page: 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:Ulmaceae (view source) Return to Trema.