View source for Erythronium mesochoreum

{{Treatment/ID
|accepted_name=Erythronium mesochoreum
|accepted_authority=Knerr
|publications={{Treatment/Publication
|title=Midland College Monthly
|place=2: 5. 1891
|year=1891
}}
|common_names=Prairie trout-lily
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Erythronium albidum var. coloratum
|authority=Sterns
|rank=variety
}} {{Treatment/ID/Synonym
|name=Erythronium albidum var. mesochoreum
|authority=(Knerr) Rickett
|rank=variety
}}
|hierarchy=Liliaceae;Erythronium;Erythronium mesochoreum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Liliaceae]]</div><div class="higher-taxon"><small>genus</small>[[Erythronium]]</div><div class="higher-taxon"><small>species</small>[[Erythronium mesochoreum]]</div></div>
|volume=Volume 26
|mention_page=page 153, 154, 155, 162
|treatment_page=page 163
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="bulb shape;bulb some measurement"><b>Bulbs </b>ovoid to ± globose, 10–25 mm;</span> <span class="statement" id="st-d0_s1" data-properties="stolon presence">stolons absent;</span> <span class="statement" id="st-d0_s2" data-properties="whole_organism life cycle;whole_organism growth form">flowering plants reproducing vegetatively by droppers or offshoots.</span> <span class="statement" id="st-d0_s3" data-properties="leaf some measurement"><b>Leaves </b>5–14 cm;</span> <span class="statement" id="st-d0_s4" data-properties="blade coloration;blade coloration;blade shape;blade arrangement or vernation;blade pubescence;base coloration;margin coloration">blade green, usually not mottled, elliptic-lanceolate to ovatelanceolate, conduplicate, glaucous, base and margins sometimes purple-brown, margins even.</span> <span class="statement" id="st-d0_s5" data-properties="scape some measurement"><b>Scape </b>5–15 cm.</span> <span class="statement" id="st-d0_s6" data-properties="inflorescence architecture"><b>Inflorescences </b>1-flowered.</span> <span class="statement" id="st-d0_s7" data-properties="tepal orientation;tepal coloration;tepal coloration;tepal coloration;tepal coloration;tepal coloration;tepal coloration;tepal shape;tepal some measurement;adaxial spot coloration;auricle presence"><b>Flowers:</b> tepals spreading at anthesis, white, tinged pink, blue, or lavender abaxially, with yellow adaxial spot at base, lanceolate, 15–30 mm, auricles absent;</span> <span class="statement" id="st-d0_s8" data-properties="stamen some measurement">stamens 8–15 mm;</span> <span class="statement" id="st-d0_s9" data-properties="filament coloration;filament shape">filaments yellow, lanceolate;</span> <span class="statement" id="st-d0_s10" data-properties="anther coloration">anthers yellow;</span> <span class="statement" id="st-d0_s11" data-properties="pollen coloration">pollen yellow;</span> <span class="statement" id="st-d0_s12" data-properties="style coloration;style some measurement">style white, 7–10 mm;</span> <span class="statement" id="st-d0_s13" data-properties="stigma lobe orientation;stigma lobe some measurement">stigma lobes recurving, 1–1.5 mm.</span> <span class="statement" id="st-d0_s14" data-properties="capsule shape;capsule some measurement;peduncle life cycle;peduncle orientation"><b>Capsules </b>resting on ground at maturity due to reclining peduncle, obovoid, 10–15 mm, apex rounded to faintly apiculate or umbilicate.</span> <span class="statement" id="st-d0_s15" data-properties="apex shape;2n chromosome quantity">2n = 22.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring.
|habitat=Prairies, glades, dry, open woods, occasionally pastures
|elevation=100–700 m
|distribution=Ark.;Ill.;Iowa;Kans.;Mo.;Nebr.;Okla.;Tex.
|discussion=<p>Because stolons are absent in Erythronium mesochoreum, most plants in a population produce flowers; nonflowering plants may sometimes appear after flowering plants have flowered. This species is well adapted to prairie fires. The seeds have elaiosomes, and ants may act as dispersal agents (Great Plains Flora Association 1986). C. C. Deam et al. (1941) reported E. mesochoreum from Indiana, but an examination of the specimens cited, now at IND, showed that these are E. albidum. E. L. Braun (1967) reported that many populations of E. albidum in southwestern Ohio indicate introgression with “the Ozarkean var. mesochoreum….” However, personal observation by K. R. Robertson of several Ohio populations in flower confirmed that these plants are true E. albidum, although they occur in prairies and have more or less conduplicate leaves.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Erythronium mesochoreum
|authority=Knerr
|rank=species
|parent rank=genus
|synonyms=Erythronium albidum var. coloratum;Erythronium albidum var. mesochoreum
|basionyms=
|family=Liliaceae
|phenology=Flowering spring.
|habitat=Prairies, glades, dry, open woods, occasionally pastures
|elevation=100–700 m
|distribution=Ark.;Ill.;Iowa;Kans.;Mo.;Nebr.;Okla.;Tex.
|reference=None
|publication title=Midland College Monthly
|publication year=1891
|special status=Illustrated;Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V26/V26_276.xml
|genus=Erythronium
|species=Erythronium mesochoreum
|2n chromosome quantity=22
|adaxial spot coloration=yellow
|anther coloration=yellow
|apex shape=rounded;faintly apiculate or umbilicate
|auricle presence=absent
|base coloration=purple-brown
|blade arrangement or vernation=conduplicate
|blade coloration=mottled;green
|blade pubescence=glaucous
|blade shape=elliptic-lanceolate;ovatelanceolate
|bulb shape=ovoid;more or less globose
|bulb some measurement=10mm;25mm
|capsule shape=obovoid
|capsule some measurement=10mm;15mm
|filament coloration=yellow
|filament shape=lanceolate
|inflorescence architecture=1-flowered
|leaf some measurement=5cm;14cm
|margin coloration=purple-brown
|peduncle life cycle=maturity
|peduncle orientation=due-to-reclining
|pollen coloration=yellow
|scape some measurement=5cm;15cm
|stamen some measurement=8mm;15mm
|stigma lobe orientation=recurving
|stigma lobe some measurement=1mm;1.5mm
|stolon presence=absent
|style coloration=white
|style some measurement=7mm;10mm
|tepal coloration=lavender;blue;lavender;blue;tinged pink;white
|tepal orientation=spreading
|tepal shape=lanceolate
|tepal some measurement=15mm;30mm
|whole_organism growth form=plant
|whole_organism life cycle=flowering
}}<!--

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