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in P. B. Webb and S. Berthelot, Hist. Nat. Îles Canaries 3(2,75): 245, 258. 1844
Common names: Marguerite
Etymology: Greek argyros, silver, and anthemon, flower allusion unclear
Treatment appears in FNA Volume 19. Treatment on page 552. Mentioned on page 30, 485, 487.
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), (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.
Atlantic Ocean Islands (Macaronesia).
Species 24 (1 in the flora).
Facts about "Argyranthemum"
|Author||John L. Strother +|
|Authority||Webb ex Schultz-Bipontinus in P. B. Webb and S. Berthelot +|
|Common name||Marguerite +|
|Distribution||Atlantic Ocean Islands (Macaronesia). +|
|Etymology||Greek argyros, silver, and anthemon, flower + and allusion unclear +|
|Illustrator||Yevonn Wilson-Ramsey +|
|Publication title||in P. B. Webb and S. Berthelot, Hist. Nat. Îles Canaries +|
|Publication year||1844 +|
|Source xml||https://firstname.lastname@example.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse grained fna xml/V19-20-21/V19 962.xml +|
|Taxon family||Asteraceae +|
|Taxon name||Argyranthemum +|
|Taxon parent||Asteraceae tribe Anthemideae +|
|Taxon rank||genus +|
|Volume||Volume 19 +|