View source for Amauriopsis dissecta

{{Treatment/ID
|accepted_name=Amauriopsis dissecta
|accepted_authority=(A. Gray) Rydberg in N. L. Britton et al.
|publications={{Treatment/Publication
|title=in N. L. Britton et al., N. Amer. Fl.
|place=34: 37. 1914
|year=1914
}}
|basionyms={{Treatment/ID/Synonym
|name=Amauria dissecta
|authority=A. Gray
}}
|synonyms={{Treatment/ID/Synonym
|name=Bahia dissecta
|authority=(A. Gray) Britton
}}
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Chaenactidinae;Amauriopsis;Amauriopsis dissecta
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Heliantheae]]</div><div class="higher-taxon"><small>subtribe</small>[[Asteraceae (tribe Heliantheae) subtribe Chaenactidinae]]</div><div class="higher-taxon"><small>genus</small>[[Amauriopsis]]</div><div class="higher-taxon"><small>species</small>[[Amauriopsis dissecta]]</div></div>
|volume=Volume 21
|mention_page=
|treatment_page=page 393
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Leaf </b>lobes (3–)7–25(–75+), ovate to oblong or lanceolate to lance-linear, 4–12(–25+) × (1–)2–6(–12+) mm. <b>Involucres</b> 5–7+ × 10–18+ mm. <b>Ray</b> laminae 5–10+ mm. <b>Disc</b> corollas 2.5–3(–4+) mm, ± stipitate-glandular. <b>Cypselae</b> 2.5–4+ mm. <b>2n</b> (= 3x) = 36.</span><!--

-->{{Treatment/Body
|phenology=Flowering (Jun–)Aug–Sep(–Oct).
|habitat=Usually on sandy or gravelly soils, openings in pinyon-juniper, yellow pine, or spruce-fir forests
|elevation=1600–2900 m
|distribution=Ariz.;Calif.;Colo.;Nev.;N.Mex.;Tex.;Utah;Wyo.;Mexico (Baja California;Chihuahua;Coahuila;Sonora).
|discussion=<p>W. L. Ellison (1964) reported “n = 18, metaphase II,” based on observation of meiosis in a microsporocyte. D. J. Keil et al. (1988) noted that anthers are often abortive and meiosis is irregular and that seed set is usually high in <i>A. dissecta</i>. Keil et al. suggested that <i>A. dissecta</i> is an apomictic triploid derived from a cross between a diploid plant with n = x = 12 and a tetraploid plant (or unreduced gamete) with n = 2x = 24 so that for <i>A. dissecta</i> 2n = 3x = 36.</p><!--
--><p>Some plants (from Arizona, Baja California, and New Mexico) with poorly developed ray corollas and ± hairy cypselae bearing pappi of 1–13 lance-linear to lance-subulate scales have been identified as belonging to <i>Amauriopsis dissecta</i>. Such plants may be hybrids resulting from crosses between <i>A. dissecta</i> and some other pappose species.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Amauriopsis dissecta
|author=
|authority=(A. Gray) Rydberg in N. L. Britton et al.
|rank=species
|parent rank=genus
|synonyms=Bahia dissecta
|basionyms=Amauria dissecta
|family=Asteraceae
|phenology=Flowering (Jun–)Aug–Sep(–Oct).
|habitat=Usually on sandy or gravelly soils, openings in pinyon-juniper, yellow pine, or spruce-fir forests
|elevation=1600–2900 m
|distribution=Ariz.;Calif.;Colo.;Nev.;N.Mex.;Tex.;Utah;Wyo.;Mexico (Baja California;Chihuahua;Coahuila;Sonora).
|reference=None
|publication title=in N. L. Britton et al., N. Amer. Fl.
|publication year=1914
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V21_990.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae
|genus=Amauriopsis
|species=Amauriopsis dissecta
}}<!--

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