Bartlettia

A. Gray

Pl. Nov. Thurb., 323. 1854.

Etymology: For John Russell Bartlett, 1805–1886, United States Commissioner of the U.S.-Mexico Boundary Survey
Treatment appears in FNA Volume 21. Treatment on page 378. Mentioned on page 364, 365, 395.
 TaxonIllustrator 
FNA21 P57 Peucephyllum sch.jpegPeucephyllum schottii
Bartlettia scaposa
Syntrichopappus fremontii
Linda Ann Vorobik
Barbara Alongi
Yevonn Wilson-Ramsey

Annuals, mostly 5–25 cm. Stems erect to spreading, branched from bases. Leaves mostly basal; subopposite or alternate; petiolate; blades ± deltate to elliptic, sometimes 3-lobed, ultimate margins ± serrate, faces sparsely hirsute or glabrate. Heads radiate, borne singly. Involucres turbinate to hemispheric, mostly 7–9 mm diam. Receptacles convex, knobby, epaleate. Phyllaries 8–22 in 2–3 series (lanceolate to linear, unequal, glandular-puberulent and sparsely strigose). Ray-florets 5–13, pistillate, fertile; corollas golden yellow. Disc-florets 30–90, bisexual, fertile; corollas yellow, sometimes suffused with purple, tubes (slender) longer than funnelform throats, lobes 5, spreading, deltate (style-branch apices truncate, penicillate). Cypselae obcompressed (each shed with subtending, linear, membranous scale, scales sometimes interpreted as paleae), margins ciliate; pappi fragile, of 17–22 bristles. x = 11.

Distribution

sw United States, Mexico

Discussion

Species 1.

Selected References

None.

Lower Taxa

... more about "Bartlettia"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
paniculiform +, cymiform +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
A. Gray +
decurrent +
compound +  and simple +
3-lobed;less deltate;elliptic +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
connate +  and distinct +
suffused with purple +, yellow +  and golden yellow +
stipitate-glandular +  and hairy +
obcompressed +
fertile +  and bisexual +
fertile +  and bisexual +
sw United States +  and Mexico +
For John Russell Bartlett, 1805–1886, United States Commissioner of the U.S.-Mexico Boundary Survey +
glabrate +  and hirsute +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
campanulate +  and cylindric +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
turbinate;hemispheric +
alternate +  and subopposite +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
2-carpellate +
persistent +
aristate +
8 +  and 22 +
Pl. Nov. Thurb., +
bearing subulate enations +, hairy +  and bristly +
knobby;convex +
distinct +
4 +  and 20 +
exalbuminous +
erect +  and spreading +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Bahiinae +  and Undefined (tribe Undefined) subtribe Palafoxiinae +
Bartlettia +
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 />) +
toothed +  and entire +
80 cm800 mm <br />0.8 m <br /> (300 cm3,000 mm <br />3 m <br />) +
5 cm50 mm <br />0.05 m <br /> (25 cm250 mm <br />0.25 m <br />) +
shrub +  and subshrub +