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.

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"
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 +