Ismelia

Cassini in F. Cuvier

in F. Cuvier, Dict. Sci. Nat. ed. 2, 41: 40. 1826.

Etymology: Etymology unknown
Treatment appears in FNA Volume 19. Treatment on page 552. Mentioned on page 30, 488.
 TaxonIllustrator 
FNA19 P66 Ismelia carnata.jpegIsmelia carinata
Mauranthemum paludosum
Glebionis segetum
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey

Annuals, 10–30 (–50+) cm. Stems 1, erect, usually branched distally, glabrous or sparsely hairy (hairs basifixed). Leaves mostly cauline; alternate; petiolate or sessile; blades obovate to oblong (bases sometimes clasping), usually 2-pinnately lobed, ultimate margins usually dentate, rarely entire, faces glabrous. Heads radiate, borne singly or in 2s or 3s. Involucres hemispheric or broader, 12–25+ mm diam. Phyllaries persistent, 20–30+ in 2–3 series, distinct, ovate or obovate to lance-deltate or lanceolate (± carinate), unequal, margins and apices scarious (tips of inner often ± dilated). Receptacles convex to conic, epaleate. Ray-florets 13–21+, pistillate, fertile; corollas proximally white or red to purple, distally yellow or white, laminae ± linear. Disc-florets 80–150+, bisexual, fertile; corollas proximally ochroleucous, distally red to purple, tubes cylindric (stipitate-glandular or gland-dotted), throats funnelform, lobes 5, deltate. Cypselae dimorphic: outer 3-angled (each angle ± winged, wings not spine-tipped); inner compressed, adaxial angles ± winged (wings not spine-tipped); ribs 0, faces glabrous (pericarps without myxogenic cells or resin sacs); pappi 0. x = 9.

Distribution

Introduced; n Africa, widely adventive elsewhere

Discussion

Species 1.

Selected References

None.

Lower Taxa

"broader" is not a number.

... more about "Ismelia"
not tailed +  and obtuse +
scarious +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
Cassini in F. Cuvier +
decurrent +
compound +  and simple +
lobed;obovate;oblong +
zygomorphic +, actinomorphic +  and (3-)5-merous +
distally red +  and purple +
winged +  and monomorphic +
obcompressed +, compressed +, 3-angled +, columnar +  and prismatic +
fertile +  and bisexual +
fertile +  and bisexual +
n Africa +  and widely adventive elsewhere +
Etymology unknown +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
in 2s +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
1.2 cm12 mm <br />0.012 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
hemispheric +
sessile +  and petiolate +
deltate +
entire +  and dentate +
2-carpellate +
persistent +
20 +  and 30 +
in F. Cuvier, Dict. Sci. Nat. ed. +
bearing subulate enations +, hairy +  and bristly +
convex;conic +
exalbuminous +
hairy +  and glabrous +
appendaged +  and truncate +
papillate +
Compositae +
Ismelia +
Asteraceae tribe Anthemideae +
cylindric +
30 cm300 mm <br />0.3 m <br /> (50 cm500 mm <br />0.5 m <br />) +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
shrub +  and subshrub +