Shinnersia

R. M. King & H. Robinson

Phytologia 19: 297. 1970.

Etymology: For Lloyd Herbert Shinners, 1918–1971, botanist, long at Southern Methodist University, founder of the journal Sida
Treatment appears in FNA Volume 21. Treatment on page 488. Mentioned on page 460.
 TaxonIllustrator 
FNA21 P73 Shinnersia rivularis.jpegShinnersia rivularis
Sclerolepis uniflora
Isocarpha oppositifolia var. achyranthes
Linny Heagy
Linny Heagy
Linny Heagy

Perennials, 10–30 cm (aquatic). Stems ascending, unbranched or branched (rooting at proximal nodes). Leaves cauline; opposite; sessile; blades 1-nerved or 3-nerved, broadly oblanceolate or 3-lobed, ultimate margins coarsely toothed, faces sometimes pilose and glabrescent or glabrous, glanddotted. Heads discoid, borne singly. Involucres hemispheric or broader, 6–9 mm diam. Phyllaries persistent, 25–30 in 2–3+ series, not notably nerved, ovate to lanceolate or linear, ± equal (herbaceous to membranous). Receptacles convex to conic, epaleate (warty). Florets 75–100+; corollas white, throats broadly campanulate (notably wider than tubes, lengths ca. 1 times diams.); styles: bases not enlarged, glabrous, branches linear-filiform. Cypselae prismatic, 4–5-ribbed, sparsely glanddotted and sparsely hairy (hairs forked); pappi 0. x = 15?

Distribution

Tex., n Mexico

Discussion

Species 1.

Selected References

None.

"fine" is not a number."broader" is not a number.

... more about "Shinnersia"
not tailed +, truncate +, rounded +  and obtuse +
scarious +
usually ovate +  and lanceolate +
usually terete +  and clavate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Guy L. Nesom +
R. M. King & H. Robinson +
decurrent +
not enlarged +
3-nerved +  and 1-nerved +
dissected +, lobed +, toothed +  and entire +
3-lobed;oblanceolate +
papillate +  and rugose +
(4-)5-angled;10-ribbed +
linear-filiform +
prismatic +
fertile +  and bisexual +
Tex. +  and n Mexico +
For Lloyd Herbert Shinners, 1918–1971, botanist, long at Southern Methodist University, founder of the journal Sida +
glabrous +, glabrescent +  and pilose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
each +  and sessile +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
hemispheric +
lanceolate +  and lance-linear +
2-carpellate +
persistent +
25 +  and 30 +
subequal +  and unequal +
bearing subulate enations +, hairy +  and bristly +
convex;conic +
exalbuminous +
branched +  and unbranched +
appendaged +  and truncate +
hirsutulous +
papillate +
Compositae +
Shinnersia +
Asteraceae tribe Eupatorieae +
campanulate +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
vine +, shrub +  and subshrub +