Coreopsis sect. Calliopsis

(Reichenbach) Nuttall

Trans Amer. Philos. Soc., n. s. 7: 360. 1841.

Basionym: Undefined sect. Calliopsis Reichenbach Mag. Aesth. Bot. 1: plate 70. 1823
Treatment appears in FNA Volume 21. Treatment on page 197. Mentioned on page 186.

Annuals (sometimes persisting). Leaves basal and cauline or mostly cauline; usually opposite, rarely alternate; blades simple or 1–2+-pinnately lobed. Calyculi of 6–10 bractlets. Phyllaries 8. Ray-florets (5–) 8, neuter; laminae yellow or ± proximally redbrown to purple (sometimes almost wholly redbrown to purple), obovate to cuneate, broadest distal to middles, apices ± 3-lobed (middle lobes often toothed). Disc-florets 40–80 (–100+); corollas redbrown to purple (at least at apices), lobes 4; style-branch apices ± truncate. Paleae linear (not distally dilated or attenuate). Cypselae ± oblong to spatulate, margins winged or not, wings ± membranous, entire, ± spreading, not ciliolate, faces glabrous, smooth or tuberculate; pappi 0, or of (1–) 2 cusps or subulate scales 0.1–1 (–1.4+) mm. x = 12 (+ 0–2 Bs).

Distribution

North America, Mexico

Discussion

Species 3 (2 in the flora).

Selected References

None.

Key

1 Blades of cauline leaves usually 1-pinnate or simple; ray corollas usually yellow throughout, rarely with proximal red-brown blotch; pappi of 2, subulate scales (0.2–)0.4–1(–1.4+) mm Coreopsis leavenworthii
1 Blades of cauline leaves usually 1–2(–3)-pinnate, seldom simple; ray corollas usually yellow with red-brown blotch, sometimes red-brown in proximal 1/3–9/10 and distally yellow, rarely yellow throughout; pappi 0, or of 1–2, bristly cusps or subulate scales 0.1–1+ mm Coreopsis tinctoria

"broader" is not a number.

not tailed +, rounded +  and obtuse +
dark +  and pale +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
paniculiform +, cymiform +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
(Reichenbach) Nuttall +
smooth +  and ciliate or barbed +
1 +  and 2 +
decurrent +
Undefined sect. Calliopsis +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
redbrown +  and purple +
winged +  and thin-margined +
less oblong +  and spatulate +
fertile +  and bisexual +
fertile +  and bisexual +
North America +  and Mexico +
tuberculate +  and smooth +
linear-fusiform;4-angled;ovate;orbiculate;oblong;linear;cuneate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
discoid +  and radiate +
in open , more or less corymbiform arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
less globose;cylindric +
more or less proximally redbrown +  and purple +
obovate +  and cuneate +
broadest +
sessile +  and petiolate +
alternate +  and opposite +
cauline +  and basal +
less deltate +  and lanceovate +
not +  and winged +
dentate to pinnatifid or palmatifid +  and entire +
2-carpellate +
ovate;linear or subulate +
persistent +
of 1-2 , smooth to ciliate or barbed awns or scales +  and coroniform +
Trans Amer. Philos. Soc., n. s. +
fertile +  and sterile +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
0.1 cm1 mm <br />0.001 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
subulate +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Coreopsideae +  and Undefined (tribe Undefined) subtribe Petrobiinae +
Coreopsis sect. Calliopsis +
Coreopsis +
section +
toothed +  and entire +
shrub +  and subshrub +
not ciliolate +
corky +  and chartaceous +
lobed +  and toothed +
membranous +