Delairea

Lemaire

Ann. Sci. Nat., Bot., sér. 3, 1: 379. 1844.

Etymology: For “Dom. Delaire,” who sent a specimen to Lemaire from a garden in the Orléans district of France
Treatment appears in FNA Volume 20. Treatment on page 608. Mentioned on page 542.
 TaxonIllustrator 
FNA20 P64 Delairea odorata.jpegDelairea odorata
Gynura aurantiaca
Hasteola suaveolens
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey

Vines, to 600+ cm (perennating bases unknown; herbage glabrous). Stems usually 1, scrambling and twining (branched). Leaves cauline; alternate; petiolate; blades palmately nerved, polygonal to ± orbiculate (bases often cordate), margins dentate, faces glabrous. Heads discoid, in corymbiform arrays (terminal or from axils of distal leaves). Calyculi of 1–4 (–5) bractlets. Involucres cylindric to weakly turbinate, 2–4 mm diam. Phyllaries persistent, (7–) 8+ in 1–2 series, erect, distinct (margins interlocking), lance-linear, ± equal, margins scarious (apices green or yellowish green). Receptacles convex, ± foveolate (socket margins often membranous), epaleate. Ray-florets 0. Disc-florets 8–25, bisexual, fertile; corollas pale-yellow, tubes shorter than campanulate to funnelform throats, lobes 5, recurved, lance-deltate to lanceolate; style-branches stigmatic in 2 lines, apices ± truncate (appendages essentially 0). Cypselae ± prismatic, 5-angled, glabrous; pappi readily falling or fragile, of 40–60 (–100+), white, barbellulate bristles. x = 10.

Distribution

Introduced; South Africa, Australia

Discussion

Species 1.

Selected References

None.

Lower Taxa

... more about "Delairea"
not tailed +, rounded +  and obtuse +
papillate +
scarious +
usually ovate +  and lance-linear +
indeterminate +  and determinate +
Theodore M. Barkley† +
Lemaire +
decurrent +
polygonal;more or less orbiculate +
winged;nerved;ribbed +
5-angled +  and prismatic +
fertile +  and bisexual +
fertile +  and bisexual +
South Africa +  and Australia +
For “Dom. Delaire,” who sent a specimen to Lemaire from a garden in the Orléans district of France +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
cylindric;weakly turbinate +
lance-deltate +  and lanceolate +
2-carpellate +
unequal +  and subequal +
Ann. Sci. Nat., Bot., sér. +
styliferous +, neuter +  and pistillate +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
twining +  and scrambling +
prostrate +  and ascending +
appendaged +  and truncate +
papillate +
Compositae +
Delairea +
Asteraceae tribe Senecioneae +
campanulate +
perennial +  and annual +