View source for Brintonia

{{Treatment/ID
|accepted_name=Brintonia
|accepted_authority=Greene
|publications={{Treatment/Publication
|title=Erythea
|place=3: 89. 1895
|year=1895
}}
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Brintonia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Astereae]]</div><div class="higher-taxon"><small>genus</small>[[Brintonia]]</div></div>
|etymology=For Jeremiah Bernard Brinton, 1835–1894, of Philadelphia
|volume=Volume 20
|mention_page=page 12, 108
|treatment_page=page 106
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 40–150 cm (rhizomes creeping, short, stout). <b>Stems</b> erect, simple, moderately to sparsely soft-villous. <b>Leaves</b> basal and cauline; alternate; petiolate; blades 1-nerved, broadly to narrowly ovate, cordate, margins serrate, faces short-strigose. <b>Heads</b> discoid, in open paniculiform arrays. <b>Involucres</b> narrowly campanulate, (4–6 ×) 5–8 mm. <b>Phyllaries</b> 14–22 in 2–3 series, squarrose, 1-nerved (nerves translucent and swollen basally; ± keeled proximally), broadly lanceolate, unequal, ± foliaceous, margins scarious, faces moderately villoso-strigose. <b>Receptacles</b> flat, weakly pitted (ridges irregular), epaleate. <b>Disc</b> florets 8–20, bisexual, fertile; corollas white or rose-purple-tinted, tubes longer than funnelform throats, lobes 5, spreading, lanceolate; style-branch appendages narrowly lanceolate (short-papillate). <b>Cypselae</b> mostly narrowly obconic to fusiform (not compressed), ribs 5–10, translucent, faces moderately appressed-strigose or glabrous; pappi persistent, of 35–50, ususally white, sometimes purplish (barb tips), barbellate bristles in 2 series (outer apically attenuate, slightly shorter and more numerous than inner, strongly clavate bristles). <b>x</b> = 9.</span><!--

-->{{Treatment/Body
|distribution=se United States.
|discussion=<p>Species 1.</p><!--
--><p>The generic position of the monotypic <i>Brintonia</i> has been ambiguous since it was first described. The lack of ray florets left open to speculation what color they might have been before evolutionary reduction. Elliott presumably assumed that they were blue or white, and tentatively placed it in <i>Aster</i>. J. Torrey and A. Gray (1838–1843, vol. 2, p. 195) assumed that they had been yellow, and placed the species in <i>Solidago</i>. Greene emphasized differences in foliage, capitulescence, corolla, and pappus features, and created the monotypic <i>Brintonia</i> for the species. L. C. Anderson and J. B. Creech (1975) found no special anatomic features of the mesic plant. A. Cronquist (1980) accepted generic status for <i>Brintonia</i>. G. L. Nesom (1991d, 1993b) believed that it is closely related to <i>S. bicolor</i> in <i>Solidago</i> subsect. Albigula. It is more similar to <i>S. sphacelata</i> and <i>S. auriculata</i> in basal leaf and array features but is not more closely related to those than to <i>S. bicolor</i>. Cypsela, phyllary midnerve, and floret and pappus pigmentation features indicate a position outside <i>Solidago</i>, as do DNA data (J. B. Beck et al. 2004). The phylogenetic position of <i>B. discoidea</i> remains uncertain within Solidagininae.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Brintonia
|author=John C. Semple
|authority=Greene
|rank=genus
|parent rank=tribe
|synonyms=
|basionyms=
|family=Asteraceae
|illustrator=Marjorie C. Leggitt
|illustration copyright=Flora of North America Association
|distribution=se United States.
|reference=None
|publication title=Erythea
|publication year=1895
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V20_208.xml
|tribe=Asteraceae tribe Astereae
|genus=Brintonia
}}<!--

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