View source for Tuctoria ← Tuctoria 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=Tuctoria |accepted_authority=Reeder |publications= |basionyms= |synonyms= |hierarchy=Poaceae;Poaceae subfam. Chloridoideae;Poaceae tribe Orcuttieae;Tuctoria |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Poaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Poaceae subfam. Chloridoideae]]</div><div class="higher-taxon"><small>tribe</small>[[Poaceae tribe Orcuttieae]]</div><div class="higher-taxon"><small>genus</small>[[Tuctoria]]</div></div> |volume=Volume 25 |mention_page= |treatment_page=page 292 }}<!-- --><span class="statement" id="st-d0_s0" data-properties=""><b>Plants </b>annual;</span> <span class="statement" id="st-d0_s1" data-properties="whole_organism duration;whole_organism odor;whole_organism pubescence;whole_organism growth form;leaf life cycle;leaf growth form or location">viscid-aromatic, more or less hairy throughout, not producing juvenile floating leaves.</span> <span class="statement" id="st-d0_s2" data-properties="culm atypical some measurement;culm some measurement;culm architecture;culm architecture;culm orientation;culm orientation;culm fragility;culm arrangement"><b>Culms </b>5-15 (30) cm, simple or branching at the upper nodes, erect or ascending, often rather fragile, readily breaking apart at the nodes.</span> <span class="statement" id="st-d0_s3" data-properties=""><b>Leaves </b>without ligules, with little or no distinction between sheath and blade;</span> <span class="statement" id="st-d0_s4" data-properties="blade prominence or shape;blade shape or vernation">blades flat, becoming involute when dry.</span> <span class="statement" id="st-d0_s5" data-properties="inflorescence position or structure subtype;spike shape;spike position;spike position"><b>Inflorescences </b>terminal, clavate spikes, partially included or exserted at maturity, spikelets spirally arranged;</span> <span class="statement" id="st-d0_s6" data-properties="spikelet arrangement">disarticulation tardy, above the glumes and between the florets.</span> <span class="statement" id="st-d0_s7" data-properties="spikelet shape;floret quantity"><b>Spikelets </b>laterally compressed, with 5-40 florets.</span> <span class="statement" id="st-d0_s8" data-properties="glume shape;glume shape"><b>Glumes </b>irregularly short-toothed or entire;</span> <span class="statement" id="st-d0_s9" data-properties="lemma atypical some measurement;lemma some measurement;lemma architecture;lemma coloration or reflectance;lemma shape;lemma shape">lemmas (3) 4-7 mm, 11-17-veined, not translucent between the veins, entire or denticulate, usually with a central mucro;</span> <span class="statement" id="st-d0_s10" data-properties="palea size">paleas subequal to or slightly shorter than the lemmas;</span> <span class="statement" id="st-d0_s11" data-properties="lodicule quantity;lodicule some measurement;lodicule fusion">lodicules 2, 0.1-0.5 mm, sometimes fused to the paleas;</span> <span class="statement" id="st-d0_s12" data-properties="anther quantity;filament length or size;filament size;filament architecture or shape">anthers 3, exserted on long, slender, ribbonlike filaments at anthesis;</span> <span class="statement" id="st-d0_s13" data-properties="style quantity;style position;style length or size;style shape;style structure in adjective form;style length">styles 2, apical, long, filiform, stigmatic for 1/3 – 1/2 of their length;</span> <span class="statement" id="st-d0_s14" data-properties="stigmatic hair height or length or size;stigmatic hair count or density">stigmatic hairs short, often sparse.</span> <span class="statement" id="st-d0_s15" data-properties="caryopsis shape;caryopsis shape;pericarp coating"><b>Caryopses </b>laterally compressed, pyriform to oblong, pericarp not viscid;</span> <span class="statement" id="st-d0_s16" data-properties="caryopsis quantity;caryopsis variability">embryos visible through the pericarp, brown, from 3/4 as long as to nearly equaling the caryopses;</span> <span class="statement" id="st-d0_s17" data-properties="embryo prominence;embryo coloration;embryo presence;x chromosome quantity">epiblasts present, x = 10.</span><!-- -->{{Treatment/Body |distribution=Calif. |discussion=<p>Tuctoria has three species, all of which grow in vernal pools or similar habitats, two in the Central Valley of California and one T. fragilis (Swallen) Reeder, in Baja California Sur, Mexico. Both species found in the Flora region are endangered by loss of habitat to urbanization and agriculture.</p> |tables= |references= }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Spikes exserted from the upper leaf sheaths at maturity; lemmas more or less truncate; caryopses about 2 mm long, minutely rugose |[[Tuctoria greenei|Tuctoria greenei]] |-id=key-0-1 |1 |Spikes partially included in the upper leaf sheaths at maturity; lemmas tapering gradually to a mucronate apex; caryopses about 3 mm long, smooth |[[Tuctoria mucronata|Tuctoria mucronata]] |} </div></div><!-- -->{{#Taxon: name=Tuctoria |author=John R. Reeder; |authority=Reeder |rank=genus |parent rank=tribe |synonyms= |basionyms= |family=Poaceae |distribution=Calif. |reference=None |publication title= |publication year= |special status= |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V25/V25_947.xml |subfamily=Poaceae subfam. Chloridoideae |tribe=Poaceae tribe Orcuttieae |genus=Tuctoria |anther quantity=3 |blade prominence or shape=flat |blade shape or vernation=involute |caryopsis quantity=3/4 |caryopsis shape=pyriform;oblong |caryopsis variability=equaling |culm architecture=branching;simple |culm arrangement=apart |culm atypical some measurement=30 |culm fragility=fragile |culm orientation=ascending;erect |culm some measurement=5cm;15cm |embryo coloration=brown |embryo presence=absent |embryo prominence=visible |filament architecture or shape=ribbonlike |filament length or size=long |filament size=slender |floret quantity=5;40 |glume shape=entire;short-toothed |inflorescence position or structure subtype=terminal |leaf growth form or location=floating |leaf life cycle=juvenile |lemma architecture=11-17-veined |lemma atypical some measurement=3 |lemma coloration or reflectance=not translucent |lemma shape=denticulate;entire |lemma some measurement=4mm;7mm |lodicule fusion=fused |lodicule quantity=2 |lodicule some measurement=0.1mm;0.5mm |palea size=subequal;or slightly shorter |pericarp coating=not viscid |spike position=exserted;included |spike shape=clavate |spikelet arrangement=arranged |spikelet shape=compressed |stigmatic hair count or density=sparse |stigmatic hair height or length or size=short |style length=1/3;1/2 |style length or size=long |style position=apical |style quantity=2 |style shape=filiform |style structure in adjective form=stigmatic |whole_organism duration=annual |whole_organism growth form=plant |whole_organism odor=viscid-aromatic |whole_organism pubescence=hairy |x chromosome quantity=10 }}<!-- -->[[Category:Treatment]][[Category:Poaceae tribe Orcuttieae]] Templates used on this page: Template:Poaceae (view source) Template:Treatment/AuthorLink (view source) Template:Treatment/Body (view source) Template:Treatment/Body/Maps (view source) Template:Treatment/ID (view source) Return to Tuctoria.