Difference between revisions of "Anthemis"
Sp. Pl. 2: 893. 1753.
Gen. Pl. ed. 5, 381. 1754.
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--><p><i>Anthemis</i> secundiramea Bivona-Bernardi, a European species, was collected once in Virginia; it differs from <i>A. arvensis</i> in having peduncles to 8 cm and ribs on cypselae ± tuberculate.</p> | --><p><i>Anthemis</i> secundiramea Bivona-Bernardi, a European species, was collected once in Virginia; it differs from <i>A. arvensis</i> in having peduncles to 8 cm and ribs on cypselae ± tuberculate.</p> | ||
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|distribution=Europe;sw Asia;n;e Africa;introduced in s Africa;Pacific Islands (New Zealand);Australia. | |distribution=Europe;sw Asia;n;e Africa;introduced in s Africa;Pacific Islands (New Zealand);Australia. | ||
|introduced=true | |introduced=true | ||
| − | |reference= | + | |reference=None |
|publication title=Sp. Pl.;Gen. Pl. ed. | |publication title=Sp. Pl.;Gen. Pl. ed. | ||
|publication year=1753;1754 | |publication year=1753;1754 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V19_935.xml |
|tribe=Asteraceae tribe Anthemideae | |tribe=Asteraceae tribe Anthemideae | ||
|genus=Anthemis | |genus=Anthemis | ||
Revision as of 19:22, 16 December 2019
Annuals (biennials) [perennials, subshrubs], mostly 5–90 cm (often aromatic). Stems 1–5+, erect to decumbent, usually branched, strigillose or strigoso-sericeous to villous (hairs medifixed), glabrescent [glabrous or sericeous to lanate]. Leaves mostly cauline; alternate; petiolate or sessile; blades ± obovate to spatulate, 1–3-pinnately lobed, ultimate margins dentate to lobed, faces glabrous or strigillose to villous [glabrous or sericeous to lanate]. Heads radiate [discoid], borne singly or in lax, corymbiform arrays (peduncles sometimes clavate and/or curved in fruit). Involucres obconic to hemispheric or broader, 5–13[–20] mm diam. Phyllaries persistent, mostly 21–35+ in 3–5 series, distinct, deltate to lanceolate, oblong, or elliptic, unequal, margins and apices (hyaline and colorless or brownish [black]) scarious. Receptacles hemispheric to narrowly conic, paleate (wholly or only distally); paleae ± flat, scarious to indurate (subulate or elliptic to obovate with mucronate to acuminate-spinose tips). Ray florets [0 or 2–]5–20[–30+], pistillate and fertile or styliferous and sterile; corollas usually white, rarely yellow or pink, laminae mostly oblong (tubes sometimes hairy). Disc florets (60–)100–300+, bisexual, fertile; corollas usually yellow, rarely pink, tubes ± cylindric (usually proximally dilated, ± spongy in fruit, sometimes hairy, not saccate), throats funnelform, lobes 5, ± triangular (abaxially minutely crested). Cypselae obovoid to obconic or turbinate (circular or 4-angled in cross section), ribs usually 9–10 (0) and smooth or tuberculate, faces glabrous (pericarps with myxogenic cells); pappi 0 or coroniform. x = 9.
Distribution
Europe, sw Asia, n, e Africa, introduced in s Africa, Pacific Islands (New Zealand), Australia.
Discussion
Species 175 (2 in the flora).
Anthemis secundiramea Bivona-Bernardi, a European species, was collected once in Virginia; it differs from A. arvensis in having peduncles to 8 cm and ribs on cypselae ± tuberculate.
Selected References
None.
Lower Taxa
Key
| 1 | Stems branched mostly proximally; receptacles paleate throughout, paleae lanceolate to oblanceolate, weakly navicular (± carinate, tips acuminate-spinose); cypselae: ribs smooth or weakly tuberculate | Anthemis arvensis |
| 1 | Stems branched mostly distally or ± throughout; receptacles paleate distally, paleae subulate to acerose; cypselae: ribs ± tuberculate | Anthemis cotula |