View source for Selenia

{{Treatment/ID
|accepted_name=Selenia
|accepted_authority=Nuttall
|publications={{Treatment/Publication
|title=J. Acad. Nat. Sci. Philadelphia
|place=5: 132, plate 6. 1825
|year=1825
}}
|basionyms=
|synonyms=
|hierarchy=Brassicaceae;Brassicaceae tribe Cardamineae;Selenia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Brassicaceae]]</div><div class="higher-taxon"><small>tribe</small>[[Brassicaceae tribe Cardamineae]]</div><div class="higher-taxon"><small>genus</small>[[Selenia]]</div></div>
|etymology=Greek selene, moon, alluding to resemblance to Lunaria
|volume=Volume 7
|mention_page=page 231, 239, 458, 486
|treatment_page=page 506
}}<!--

--><span class="statement" id="st-d0_s0" data-properties=""><b>Annuals </b>(sometimes winter);</span> <span class="statement" id="st-d0_s1" data-properties="">not scapose;</span> <span class="statement" id="st-d0_s2" data-properties="whole-organism architecture;whole-organism pubescence;whole-organism duration">glabrous.</span> <span class="statement" id="st-d0_s3" data-properties="stem orientation;stem orientation;stem growth form or orientation;stem architecture;stem architecture"><b>Stems </b>(rarely absent, base of plant forming inflated crown), erect, ascending, subdecumbent, or decumbent, unbranched or branched distally.</span> <span class="statement" id="st-d0_s4" data-properties=""><b>Leaves </b>basal and cauline;</span> <span class="statement" id="st-d0_s5" data-properties="leaf position;leaf position;leaf architecture;leaf architecture">petiolate or subsessile;</span> <span class="statement" id="st-d0_s6" data-properties="basal leaf arrangement;basal leaf arrangement;basal leaf architecture;blade margin architecture or shape">basal rosulate or not, petiolate, blade margins 1- or 2- (or 3-) pinnatisect, (terminal lobe margin entire or dentate);</span> <span class="statement" id="st-d0_s7" data-properties="cauline leaf architecture">cauline sessile [subsessile], blade (base not auriculate), margins similar to basal.</span> <span class="statement" id="st-d0_s8" data-properties=""><b>Racemes </b>(sometimes pedicels originating between basal leaves, bracteate throughout, rachis straight), considerably elongated in fruit.</span> <span class="statement" id="st-d0_s9" data-properties="raceme length;raceme arrangement;raceme orientation;raceme size"><b>Fruiting </b>pedicels divaricate to ascending, slender.</span> <span class="statement" id="st-d0_s10" data-properties="flower orientation;flower orientation;flower orientation;flower orientation;flower orientation;flower shape;flower shape;flower shape;flower position;flower architecture or shape"><b>Flowers:</b> sepals (sometimes persistent), erect, spreading, or ascending, (yellowish), oblong, oblong-linear or lanceolate, lateral pair slightly saccate basally;</span> <span class="statement" id="st-d0_s11" data-properties="petal coloration;petal shape;claw variability">petals yellow, spatulate to broadly obovate, claw differentiated from blade, (apex rounded or emarginate [obtuse]);</span> <span class="statement" id="st-d0_s12" data-properties="stamen architecture">stamens tetradynamous;</span> <span class="statement" id="st-d0_s13" data-properties="filament shape">filaments not dilated basally;</span> <span class="statement" id="st-d0_s14" data-properties="anther shape;anther shape;anther shape;anther shape;anther shape">anthers linear, ovate, or oblong [sagittate];</span> <span class="statement" id="st-d0_s15" data-properties="nectar gland arrangement">nectar glands confluent (extending into spreading teeth).</span> <span class="statement" id="st-d0_s16" data-properties="fruits silicle architecture;fruits silicle architecture;fruits silicle shape;fruits silicle shape;fruits silicle shape;fruits silicle shape;fruits silicle shape;fruits silicle shape;fruits silicle shape;fruits silicle architecture or pubescence or relief;fruits silicle architecture;fruits silicle shape;fruits silicle shape;fruits silicle shape;fruits silicle shape"><b>Fruits </b>silicles, sessile or shortly stipitate, usually oblong, elliptical, suborbicular, or globose, rarely obovoid, smooth, latiseptate, terete, or slightly inflated;</span> <span class="statement" id="st-d0_s17" data-properties="valve architecture">valves (vesicular in S. grandis, thin-papery to leathery), each without midvein, obscurely to prominently reticulate-veined;</span> <span class="statement" id="st-d0_s18" data-properties="replum shape;replum shape">replum rounded or flattened;</span> <span class="statement" id="st-d0_s19" data-properties="septum architecture;septum architecture">septum complete or perforated;</span> <span class="statement" id="st-d0_s20" data-properties="ovule quantity">ovules 8–44 per ovary;</span> <span class="statement" id="st-d0_s21" data-properties="style fusion">style distinct, (1–12 mm, sometimes flattened basally);</span> <span class="statement" id="st-d0_s22" data-properties="stigma architecture or shape">stigma capitate.</span> <span class="statement" id="st-d0_s23" data-properties="seed arrangement;seed shape;seed architecture;seed shape"><b>Seeds </b>biseriate, flattened, winged throughout, orbicular;</span> <span class="statement" id="st-d0_s24" data-properties="seed-coat coating">seed-coat (coarsely reticulate), not mucilaginous when wetted;</span> <span class="statement" id="st-d0_s25" data-properties="">cotyledons accumbent.</span> <span class="statement" id="st-d0_s26" data-properties="cotyledon arrangement;x chromosome quantity;x chromosome quantity;x chromosome quantity">x = 7, 12, 13.</span><!--

-->{{Treatment/Body
|distribution=c;sw United States;ne Mexico
|discussion=<p>Species 5 (4 in the flora).</p><!--
--><p>Species of Selenia might be difficult to separate when the plants are only in flower. Selenia aurea is easily distinguished by its 1-pinnatisect leaves and absence of flowers from the base of the plant. The remaining three species have 2- or 3-pinnatisect leaves and at least some pedicels from the basal rosette. In S. jonesii, the sepal appendage is absent or less than 1 mm; in both S. dissecta and S. grandis, it is 1–4 mm. The last two can be distinguished in flower by the presence in S. grandis of terete styles and ovary margins (replum) and in S. dissecta by flattened style bases and winged ovary margins. Selenia mexicana Standley is endemic to Nuevo León, Mexico.</p>
|tables=
|references={{Treatment/Reference
|id=beck2009a
|text=Beck, J. B. 2009. The phylogeny of Selenia (Brassicaceae) inferred from chloroplast and nuclear sequence data. J. Bot. Res. Inst. Texas 3: 169–176.
}}{{Treatment/Reference
|id=martin1940a
|text=Martin, R. F. 1940. A review of the cruciferous genus Selenia. Amer. Midl. Naturalist 23: 455–462.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Leaf blade margins 1-pinnatisect; fruiting pedicels from racemes; sepals with unappendaged apex.
|[[Selenia aurea|Selenia aurea]]
|-id=key-0-1
|1
|Leaf blade margins 2- or 3-pinnatisect; fruiting pedicels (at least some) from basal leaf axils or rosettes; sepals with appendaged apex
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Fruit valves vesicular, leathery; sepals persistent; fruits 5.5-7.5 mm wide.
|[[Selenia grandis|Selenia grandis]]
|-id=key-0-2
|2
|Fruit valves not vesicular, papery; sepals caducous or tardily so; fruits 8-17 mm wide
|[[#key-0-3| > 3]]
|-id=key-0-3
|3
|Fruits oblong to elliptical, latiseptate; replums and styles flattened; petals (12-)15-20 × (5-)6-9 mm; ovules 28-40 per ovary; median filament pairs 6-10 mm; sepal apex appendage (1-)1.5-3 mm.
|[[Selenia dissecta|Selenia dissecta]]
|-id=key-0-3
|3
|Fruits usually globose, rarely obovoid, terete; replums and styles not flattened; petals 4-7 × 2.5-4 mm; ovules 8-14 per ovary; median filament pairs 3-4 mm; sepal apex appendage 0.5-0.8 mm.
|[[Selenia jonesii|Selenia jonesii]]
|}
</div></div><!--

-->{{#Taxon:
name=Selenia
|author=Ihsan A. Al-Shehbaz
|authority=Nuttall
|rank=genus
|parent rank=tribe
|synonyms=
|basionyms=
|family=Brassicaceae
|distribution=c;sw United States;ne Mexico
|reference=beck2009a;martin1940a
|publication title=J. Acad. Nat. Sci. Philadelphia
|publication year=1825
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V7/V7_792.xml
|tribe=Brassicaceae tribe Cardamineae
|genus=Selenia
|anther shape=oblong;ovate;oblong;ovate;linear
|basal leaf architecture=petiolate
|basal leaf arrangement=not;rosulate
|blade margin architecture or shape=1-or-2-pinnatisect
|cauline leaf architecture=sessile
|claw variability=differentiated
|cotyledon arrangement=accumbent
|filament shape=dilated
|flower architecture or shape=saccate
|flower orientation=ascending;spreading;ascending;spreading;erect
|flower position=lateral
|flower shape=lanceolate;oblong-linear;oblong
|fruits silicle architecture=latiseptate;stipitate;sessile
|fruits silicle architecture or pubescence or relief=smooth
|fruits silicle shape=inflated;terete;inflated;terete;obovoid;globose;suborbicular;globose;suborbicular;elliptical;oblong
|leaf architecture=subsessile;petiolate
|leaf position=cauline;basal
|nectar gland arrangement=confluent
|ovule quantity=8;44
|petal coloration=yellow
|petal shape=spatulate;broadly obovate
|raceme arrangement=divaricate
|raceme length=elongated
|raceme orientation=ascending
|raceme size=slender
|replum shape=flattened;rounded
|seed architecture=winged
|seed arrangement=biseriate
|seed shape=orbicular;flattened
|seed-coat coating=mucilaginous
|septum architecture=perforated;complete
|stamen architecture=tetradynamous
|stem architecture=branched;unbranched
|stem growth form or orientation=decumbent
|stem orientation=ascending;erect
|stigma architecture or shape=capitate
|style fusion=distinct
|valve architecture=reticulate-veined
|whole-organism architecture=not scapose
|whole-organism duration=annual
|whole-organism pubescence=glabrous
|x chromosome quantity=13;12;7
}}<!--

-->[[Category:Treatment]][[Category:Brassicaceae tribe Cardamineae]]