Jamesianthus

S. F. Blake & Sherff

Publ. Field Mus. Nat. Hist., Bot. Ser. 22: 399. 1940.

Etymology: For Robert Leslie James, 1897–1977, American botanist and historian, and Greek anthos, flower
Treatment appears in FNA Volume 21. Treatment on page 377. Mentioned on page 364, 365.
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 TaxonIllustrator 
FNA21 P56 Arnica cordifolia.jpegArnica cordifolia
Arnica latifolia
Jamesianthus alabamensis
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey

Perennials, 60–150+ cm (fibrous-rooted). Leaves cauline; opposite; petiolate or sessile; blades ± lanceolate to narrowly trullate, (bases sometimes ± auriculate) margins entire or denticulate, faces: abaxial glabrous, adaxial minutely scabrellous to hirtellous. Heads radiate, borne singly or in open, corymbiform arrays. Involucres ± campanulate or broader, 9–12+ mm diam. Phyllaries persistent, 14–18+ in ± 3 series (± oblong, ovate, ovate-oblong, or ovate-attenuate, unequal, outer shorter). Receptacles flat to convex, epaleate. Ray-florets 6–8, pistillate, fertile; corollas yellow. Disc-florets 20–30, all bisexual or inner functionally staminate; corollas yellow, tubes shorter than to equaling ± campanulate to funnelform throats, lobes 5, ovate-deltate to deltate (style-branches stout, appendages deltate). Ray cypselae ± obovoid, weakly obcompressed, 16–24-nerved, ± hispidulous; pappi 0, or fragile, of 6–8+ barbellate bristles (borne on crowns). Disc cypselae ± ellipsoid to clavate, ± hispidulous; pappi 0, or fragile, of 6–8+ barbellulate bristles (borne on crowns).

Discussion

Species 1.

Selected References

None.

"broader" is not a number.

... more about "Jamesianthus"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
corymbiform +  and open +
indeterminate +  and determinate +
John L. Strother +
S. F. Blake & Sherff +
decurrent +
compound +  and simple +
less lanceolate;narrowly trullate +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
connate +  and distinct +
stipitate-glandular +  and hairy +
obcompressed +, linear +, compressed +, fusiform +, cylindric +, columnar +, clavate +, 4-5-angled +  and obpyramidal +
less ellipsoid +  and clavate +
fertile +  and bisexual +
For Robert Leslie James, 1897–1977, American botanist and historian, and Greek anthos, flower +
hairy +, glabrous +, stipitate-glandular +, glabrescent +, strigose +, less lanate +  and woolly or hispidulous +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
campanulate +  and cylindric +
in open , corymbiform arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
campanulate +
sessile +  and petiolate +
ovate-deltate +  and deltate +
dentate to pinnatifid or palmatifid +  and entire +
denticulate +  and entire +
2-carpellate +
persistent +
aristate +
14 +  and 18 +
Publ. Field Mus. Nat. Hist., Bot. Ser. +
obcompressed +  and obovoid +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
distinct +
4 +  and 20 +
exalbuminous +
prostrate +  and ascending +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Bahiinae +  and Undefined (tribe Undefined) subtribe Palafoxiinae +
Jamesianthus +
Asteraceae (tribe Heliantheae) subtribe Chaenactidinae +
campanulate +  and cylindric +
80 cm800 mm <br />0.8 m <br /> (300 cm3,000 mm <br />3 m <br />) +
1 cm10 mm <br />0.01 m <br /> (80 cm800 mm <br />0.8 m <br />) +
less campanulate +  and shorter than to equaling more +
toothed +  and entire +
80 cm800 mm <br />0.8 m <br /> (300 cm3,000 mm <br />3 m <br />) +
60 cm600 mm <br />0.6 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
80 cm800 mm <br />0.8 m <br /> (300 cm3,000 mm <br />3 m <br />) +
shrub +  and subshrub +