Sinosenecio

B. Nordenstam

Opera Bot. 44: 48, figs. 22F-K, 23. 1978.

Etymology: Greek Sino- , pertaining to China, and generic name Senecio
Treatment appears in FNA Volume 20. Treatment on page 618. Mentioned on page 542, 619.
Revision as of 21:23, 29 July 2020 by imported>Volume Importer
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 TaxonIllustrator 
FNA20 P66 Tephroseris palustris.jpegTephroseris palustris
Sinosenecio newcombei
Parasenecio auriculatus
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey

Perennials, 10–30 cm (glabrous or sparsely tomentose; caudices sometimes rhizomatous, sometimes fibrous-rooted). Stems single or loosely clustered, erect. Leaves basal and cauline (sometimes mostly basal, distal usually smaller, bractlike); alternate; petiolate (petioles sometimes proximally dilated, ± sheathing stems, distally not winged); blades palmately or subpalmately nerved, ovate to subreniform [orbiculate to deltate], margins lobulate-dentate [dentate, denticulate, entire], faces glabrous or sparsely arachnose to tomentose. Heads radiate, borne singly [in corymbiform to paniculiform arrays]. Calyculi 0 (cauline bractlets sometimes approaching bases of heads). Involucres campanulate to hemispheric, [3–] 6–10+ mm diam. Phyllaries persistent, usually 8 or 13 in (1–) 2 series, erect (reflexed in fruit), distinct [basally connate], ± lanceolate, equal, margins ± scarious. Receptacles flat to convex, smooth [foveolate, sometimes setaceous], epaleate. Ray-florets 8–13, pistillate, fertile; corollas yellow to orange-yellow (sometimes drying pink). Disc-florets [20–] 30–60+, bisexual, fertile; corollas yellow to orange-yellow, tubes shorter than or equaling funnelform [campanulate] throats, lobes 5, erect or recurved, lance-deltate; style-branches: stigmatic areas continuous [in 2 lines], apices rounded-truncate. Cypselae ± columnar to prismatic, 5-ribbed or 10-ribbed or nerved, glabrous [puberulent]; pappi persistent (fragile [readily falling]), of 40–60, white, barbellulate to smooth bristles [absent on ray cypselae]. x = 24.

Distribution

B.C., mostly e Asia, chiefly China and Korea

Discussion

Species ca. 30 (1 in the flora).

Selected References

None.

... more about "Sinosenecio"
not tailed +, rounded +  and obtuse +
papillate +
rounded-truncate +
scarious +
usually ovate +  and lance-linear +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
John P. Janovec +  and Theodore M. Barkley† +
B. Nordenstam +
decurrent +
ovate;subreniform +
winged;nerved;ribbed +
barbellulate +  and smooth +
yellow +  and orange-yellow +
10-ribbed or nerved +  and 5-ribbed +
less columnar +  and prismatic +
fertile +  and bisexual +
fertile +  and bisexual +
B.C. +, mostly e Asia +  and chiefly China and Korea +
Greek Sino- , pertaining to China, and generic name Senecio +
sparsely arachnose +  and tomentose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
campanulate;hemispheric +
cauline +  and basal +
recurved;erect +
lance-deltate +
2-carpellate +
persistent +
lanceolate +
unequal +  and subequal +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
appendaged +  and truncate +
papillate +
Compositae +
Sinosenecio +
Asteraceae tribe Senecioneae +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
vine +, tree +, shrub +  and subshrub +