Difference between revisions of "Coreopsis sect. Pugiopappus"
Proc. Amer. Acad. Arts 49: 340. 1913.
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|name=Undefined sect. Pugiopappus | |name=Undefined sect. Pugiopappus | ||
|authority=A. Gray | |authority=A. Gray | ||
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| + | |publication_title=in War Department [U.S.], Pacif. Railr. Rep. | ||
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name=Coreopsis sect. Pugiopappus | name=Coreopsis sect. Pugiopappus | ||
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|authority=(A. Gray) S. F. Blake | |authority=(A. Gray) S. F. Blake | ||
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|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Coreopsidinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Coreopsidinae | ||
Latest revision as of 20:12, 5 November 2020
Annuals. Leaves mostly basal, seldom cauline; alternate; blades simple or (1–)2–3-pinnately lobed. Calyculi of 5–8 bractlets. Phyllaries (5–)8(–12). Paleae ± linear. Ray florets (3–)8, usually pistillate and fertile, sometimes styliferous and sterile; laminae yellow, ± obovate to flabellate, each broadest distal to middle, apices entire or 2–3-toothed. Disc florets (12–)20–60(–100+); corollas yellow, lobes 5; style-branch apices ± truncate or deltoid. Ray cypselae ± rounded-quadrate to oblong, wings chartaceous to membranous, entire, spreading (or margins thin, winglike), not ciliolate, faces usually ± tuberculate, sometimes smooth; pappi 0. Disc cypselae spatulate to oblong, wings chartaceous to membranous, entire, spreading (or margins thin, winglike), ciliolate, faces usually ± tuberculate, sometimes smooth; pappi of 2 lanceolate to subulate scales 1–4(–5+) mm. x = 12.
Discussion
Species 3 (3 in the flora).
Selected References
None.
Key
| 1 | Calyculi of ovate-deltate bractlets (3–)4–6+ mm; scales of pappi 3–4(–5) mm | Coreopsis calliopsidea |
| 1 | Calyculi of oblong to linear bractlets (1–)3–8+ mm; scales of pappi 1–3 mm | > 2 |
| 2 | Ray laminae (5–)12–20+ mm; paleae basally adnate to and falling with cypselae; scalesof pappi 2–3 mm | Coreopsis bigelovii |
| 2 | Ray laminae 3.5–8 mm; paleae not adnate to and falling with cypselae; scales of pappi ca. 1 mm | Coreopsis hamiltonii |