Ixeris

(Cassini) Cassini in F. Cuvier

in F. Cuvier, Dict. Sci. Nat. ed. 2, 25: 62. 1822.

Etymology: No etymology in protologue
Basionym: Taraxacum subg. Ixeris Cassini Bull. Sci. Soc. Philom. Paris 1821: 173. 1821
Treatment appears in FNA Volume 19. Treatment on page 254. Mentioned on page 216.
Revision as of 20:11, 29 July 2020 by imported>Volume Importer
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 TaxonIllustrator 
FNA19 P20 Chondrilla juncea.jpegChondrilla juncea
Ixeris stolonifera
Lapsanastrum apogonoides
Bee F. Gunn
Bee F. Gunn
Bee F. Gunn

Perennials [annuals or biennials], (5–) 10–30+ cm; taprooted (sometimes rhizomatous; stolons produced in some taxa). Stems (excluding stolons) 1–5+, erect (often scapiform), usually branched distally, glabrous. Leaves basal and cauline; petiolate; blades elliptic, oblong, orbiculate, or ovate [lanceolate to oblanceolate or linear], margins entire or denticulate to dentate [pinnately lobed] (faces glabrous [± scabrous]). Heads borne singly or in loose, corymbiform [paniculiform] arrays. Peduncles not inflated distally, usually bracteate. Calyculi of 3–10+, deltate to lanceolate bractlets. Involucres campanulate to cylindric, 2–5 [–8+] mm diam. Phyllaries 5–10 [–13+] in ± 1 series, linear [lanceolate], equal to subequal, margins sometimes scarious, apices obtuse to acute. Receptacles convex, weakly pitted, glabrous, epaleate. Florets 6–12+; corollas yellow [white or bluish]. Cypselae reddish-brown [black], bodies ± fusiform, sometimes ± compressed, ribs (or wings) 10, beaks equal to or shorter than bodies, faces glabrous; pappi persistent, of 20–30, white [brown], ± equal, smooth or barbellulate bristles in 1 series. x = 8.

Distribution

Introduced; Southeast Asia

Discussion

Species ca. 20 (1 in the flora).

Selected References

None.

Lower Taxa

"fine" is not a number.

... more about "Ixeris"
obtuse;acute +
scarious +
ovate +  and lanceolate +
indeterminate +  and determinate +
John L. Strother +
(Cassini) Cassini in F. Cuvier +
decurrent +
Taraxacum subg. Ixeris +
compound +  and simple +
ovate;orbiculate;ovate;orbiculate;oblong;elliptic +
tuberculate +, rugose +, muricate +  and smooth +
compressed;fusiform +
deltate;lanceolate +
filiform +
zygomorphic +, actinomorphic +  and (3-)5-merous +
reddish-brown +
tapered +, beaked +, flattened +, obcompressed +, compressed +, prismatic +, fusiform +, ellipsoid +, columnar +  and clavate +
Southeast Asia +
No etymology in protologue +
winged +  and beaked +
dispersed +
in loose , corymbiform arrays +  and singly +
indeterminate +
each +  and sessile +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
campanulate;cylindric +
cauline +  and basal +
denticulate +  and dentate +
2-carpellate +
barbellulate +  and smooth +
persistent +
connate +  and distinct +
5 +  and 10 +
in F. Cuvier, Dict. Sci. Nat. ed. +
exalbuminous +
1 +  and 5 +
appendaged +  and truncate +
papillate +
Undefined tribe Lactuceae +
Asteraceae tribe Cichorieae +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
shrub +  and subshrub +