Difference between revisions of "Argyranthemum"
in P. B. Webb and S. Berthelot, Hist. Nat. Îles Canaries 3(2,75): 245, 258. 1844.
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|discussion=<p>Species 24 (1 in the flora).</p> | |discussion=<p>Species 24 (1 in the flora).</p> | ||
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|distribution=Atlantic Ocean Islands (Macaronesia). | |distribution=Atlantic Ocean Islands (Macaronesia). | ||
|introduced=true | |introduced=true | ||
| − | |reference= | + | |reference=None |
|publication title=in P. B. Webb and S. Berthelot, Hist. Nat. Îles Canaries | |publication title=in P. B. Webb and S. Berthelot, Hist. Nat. Îles Canaries | ||
|publication year=1844 | |publication year=1844 | ||
|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_962.xml |
|tribe=Asteraceae tribe Anthemideae | |tribe=Asteraceae tribe Anthemideae | ||
|genus=Argyranthemum | |genus=Argyranthemum | ||
Revision as of 19:23, 16 December 2019
Subshrubs or shrubs, 10–80+[–150] cm. Stems usually 1, procumbent to erect, usually branched, glabrous [hairy]. Leaves mostly cauline; alternate; petiolate or sessile; blades ± obovate [oblong to lanceolate or linear] (bases sometimes ± clasping), [0](1–)2–3-pinnately lobed (lobes cuneate to linear), ultimate margins dentate [entire], faces glabrous [hairy]. Heads radiate [discoid], borne singly or in open, corymbiform arrays. Involucres hemispheric or broader, [6–]10–18[–22+] mm diam. Phyllaries persistent, 28–45+ in 3–4 series, distinct, oblanceolate or ovate to lance-deltate or lanceolate (not keeled abaxially), unequal, margins and apices (stramineous to brown) scarious (tips of inner often ± dilated). Receptacles convex to conic, epaleate. Ray florets 12–35+, pistillate, fertile; corollas usually white, sometimes yellow or pink, laminae ± ovate to linear. Disc florets [50–]80–150+, bisexual, fertile; corollas yellow [red, purple], tubes ± cylindric (not basally dilated, ± gland-dotted), throats campanulate, lobes 5, deltate (without resin sacs). Cypselae dimorphic: outer (ray) 3-angled, each angle usually ± winged (wings not spine-tipped); inner (disc) compressed-prismatic (± quadrate, sometimes 2 angles winged, wings not spine-tipped); all ± ribbed or nerved, faces usually glabrous, sometimes gland-dotted between ribs (pericarps without myxogenic cells or resin sacs; embryo sac development bisporic); pappi 0 (cypselar wall tissue sometimes produced as teeth, crowns, or oblique tubes similar in texture to cypselar wings). x = 9.
Distribution
Atlantic Ocean Islands (Macaronesia).
Discussion
Species 24 (1 in the flora).
Selected References
None.