Argyranthemum

Webb ex Schultz-Bipontinus in P. B. Webb and S. Berthelot

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.
 TaxonIllustrator 
FNA19 P65 Tripleurospermum inodorum.jpegTripleurospermum inodorum
Heteranthemis viscidihirta
Argyranthemum foeniculaceum
Linny Heagy
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey

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

Introduced; Atlantic Ocean Islands (Macaronesia)

Discussion

Species 24 (1 in the flora).

"broader" is not a number.

... more about "Argyranthemum"
not tailed +  and obtuse +
scarious +
corymbiform +  and open +
indeterminate +  and determinate +
John L. Strother +
Webb ex Schultz-Bipontinus in P. B. Webb and S. Berthelot +
decurrent +
compound +  and simple +
lobed;obovate +
Marguerite +
zygomorphic +, actinomorphic +  and (3-)5-merous +
yellow +, pink +  and white +
nerved +  and ribbed +
obcompressed +, compressed +, 3-angled +, columnar +  and prismatic +
fertile +  and bisexual +
fertile +  and bisexual +
Atlantic Ocean Islands (Macaronesia) +
Greek argyros, silver, and anthemon, flower +  and allusion unclear +
gland-dotted +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
in open , corymbiform arrays +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
compressed-prismatic +
1 cm10 mm <br />0.01 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
hemispheric +
less ovate +  and linear +
sessile +  and petiolate +
deltate +
entire +  and dentate +
2-carpellate +
persistent +
28 +  and 45 +
in P. B. Webb and S. Berthelot, Hist. Nat. Îles Canaries +
bearing subulate enations +, hairy +  and bristly +
convex;conic +
humphries1976a +
exalbuminous +
appendaged +  and truncate +
papillate +
Compositae +
Argyranthemum +
Asteraceae tribe Anthemideae +
campanulate +
cylindric +
perennial +, biennial +  and annual +
shrub +  and subshrub +