Glyptopleura

D. C. Eaton in S. Watson

in S. Watson, Botany (Fortieth Parallel), 207, plate 20, figs. 11–18. 1871.

Etymology: Greek glyptos, carved, and pleura, rib, alluding to cypselae
Treatment appears in FNA Volume 19. Treatment on page 361. Mentioned on page 216, 362.
 TaxonIllustrator 
FNA19 P37 Prenanthella exigua.jpegPrenanthella exigua
Pleiacanthus spinosus
Glyptopleura setulosa
Yevonn Wilson-Ramsey
Sheila Flinchpaugh
John Myers

Annuals, 1–6 cm (low-growing, densely cespitose, herbage glabrous); taprooted. Stems 1–25+, ± prostrate, simple or branched, glabrous. Leaves basal and cauline, crowded; petiolate or sessile; basal blades ± oblanceolate, margins dentate or pinnately lobed and crustose-denticulate, cauline progressively reduced to oblanceolate, crustose-denticulate bracts. Heads (1–3) borne singly or 2–3 in bract-axils. Peduncles not distally inflated, often bracteate. Calyculi of 5–8, linear to oblanceolate bractlets in ± 1 series, apices expanded, crustose-denticulate. Involucres cylindric to urceolate, 3–8+ mm diam. Phyllaries 5–8+ in 1–2 series, commonly purplish-tinged, linear, equal, margins scarious, apices acute. Receptacles ± flat, smooth, glabrous, epaleate. Florets 7–18; corollas white to pale-yellow, becoming pink-purple (especially when dry). Cypselae straw-colored or light-brown, subcylindric or slightly flattened, often curved, abruptly beaked, obtusely 4–5-angled, ribs transversely roughened, alternating with 5 rows of pits, glabrous or minutely puberulent; pappi falling (outer, individually) or ± persistent (inner, connate at bases in easily fractured rings), of 50–80+, white, barbellulate to smooth bristles in 3–4+ series. x = 9.

Distribution

w United States

Discussion

Species 2 (2 in the flora).

A molecular phylogenetic investigation by J. Lee et. al (2003) provided evidence that Glyptopleura is part of a primarily western North American radiation in Cichorieae. That study did not resolve the relationship of Glyptopleura to other genera within the radiation.

Selected References

None.

Key

1 Ligules 4–10 mm, equaling involucres or exserted 1–5 mm Glyptopleura marginata
1 Ligules 15–25 mm, exserted 10–20 mm Glyptopleura setulosa

"fine" is not a number.

... more about "Glyptopleura"
acute;crustose-denticulate +
expanded +
scarious +
ovate +  and lanceolate +
paniculiform +  and corymbiform +
indeterminate +  and determinate +
David J. Keil +
D. C. Eaton in S. Watson +
oblanceolate +
decurrent +
compound +  and simple +
tuberculate +, rugose +, muricate +  and smooth +
crustose-denticulate +
filiform +
barbellulate +  and smooth +
zygomorphic +, actinomorphic +  and (3-)5-merous +
white +  and pale-yellow +
light-brown +  and straw-colored +
4-5-angled +, flattened +  and subcylindric +
w United States +
Greek glyptos, carved, and pleura, rib, alluding to cypselae +
winged +  and beaked +
dispersed +
indeterminate +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
cylindric;urceolate +
sessile +  and petiolate +
cauline +  and basal +
oblanceolate +, crustose-denticulate +, lobed +  and dentate +
reduced +
2-carpellate +
persistent +
connate +  and distinct +
subequal +  and unequal +
in S. Watson, Botany (Fortieth Parallel), +
flat;convex +
alternating +
puberulent +  and glabrous +
exalbuminous +
branched +  and simple +
prostrate +  and ascending +
1 +  and 25 +
appendaged +  and truncate +
papillate +
Undefined tribe Lactuceae +
Glyptopleura +
Asteraceae tribe Cichorieae +
1 cm10 mm <br />0.01 m <br /> (6 cm60 mm <br />0.06 m <br />) +
shrub +  and subshrub +