Paronychia jonesii

M. C. Johnston

Wrightia 2: 250. 1963.

Common names: Jones’ nailwort
Endemic
Treatment appears in FNA Volume 5. Treatment on page 39. Mentioned on page 32.
Revision as of 09:44, 30 July 2020 by imported>Volume Importer
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Plants annual; taproot slender. Stems prostrate, sprawling-spreading, much-branched, 10–35 cm, short-pubescent. Leaves: stipules ovate, 3–7.5 mm, apex acuminate, entire; blade oblanceolate to spatulate, 5–18 × 1.5–3.5 mm, leathery, apex obtuse to very short-cuspidate, densely appressed-pubescent. Cymes terminal and subterminal, occasionally axillary, 3–7-flowered, congested, clusters 3–8 mm wide. Flowers 5-merous, ± extended-urceolate, with enlarged hypanthium and calyx constricted proximally, flaring distally, 1.8–2 mm, pubescent with short, hooked hairs proximally; sepals redbrown, often finely striped or mottled, veins absent, spatulate-obovate to suboblong, 0.8–1.3 mm, leathery to rigid, margins white, 0.1–0.2 mm wide, papery, apex terminated by awn, broadly rounded, awn divergent, 0.3–0.4 mm, broadly conic in proximal 1/3–1/2 with white, scabrous spine; staminodes filiform, 0.5–0.6 mm; style 1, 0.7–0.8 mm, cleft in distal 1/5. Utricles globose, 0.8–1 mm, smooth, glabrous.


Phenology: Flowering spring–summer.
Habitat: Sandy, open grounds
Elevation: 10-40 m

Discussion

Paronychia jonesii most closely resembles P. drummondii and is known only from southeastern coastal Texas.

Selected References

None.

Lower Taxa

None.

"/10" is not declared as a valid unit of measurement for this property. "/10" is not declared as a valid unit of measurement for this property.

... more about "Paronychia jonesii"
awned +  and hooded +
short-cuspidate +  and entire +
ascending +  and slightly descending +
appressed-pubescent +
rounded;obtuse to very;acuminate +
Ronald L. Hartman +, John W. Thieret +  and Richard K. Rabeler +
M. C. Johnston +
prominent +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
stipulate +  and petiolate +
not +  and connate +
often +  and needlelike +
0.5 cm5 mm <br />0.005 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
oblanceolate +  and spatulate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
reduced +
flaring +
constricted +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Jones’ nailwort +
3-7-flowered +
axillary +  and subterminal +
3mm;8mm +
dish--shaped +
expanded +
10-40 m +
peripheral +
connate +  and distinct +
unisexual +  and bisexual +
extended-urceolate +
sometimes +  and indehiscent +
stalked +  and simple +
Sandy, open grounds +
straight +
tapering +  and cup-shaped +
sessile +  and petiolate +
adjacent +  and opposite +
connate +
all +  and distalmost +
fimbriate +  and entire +
0.1mm +  and 0.2mm +
swollen +
3 +  and 5 +
crassinucellate +  and bitegmic +
campylotropous +
fugacious +
4 +  and 5 +
Flowering spring–summer. +
compressed +, subglobose +  and ellipsoid +
mottled +, striped +  and redbrown +
persistent +
subulate;linear-oblong lanceolate spatulate or ovate +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (?) +  and 0.06 cm0.6 mm <br />6.0e-4 m <br /> (?) +
much-branched +
sprawling-spreading +
short-pubescent +
terete;angular +
10 cm100 mm <br />0.1 m <br /> (35 cm350 mm <br />0.35 m <br />) +
subterminal +
[50 +  and 2 +
papillate +
silvery +  and white +
0.3 cm3 mm <br />0.003 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
connate +  and distinct +
subcapitate +  and filiform +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
Anychia +, Anychiastrum +, Gastronychia +, Gibbesia +, Nyachia +, Odontonychia +  and Siphonychia +
Paronychia jonesii +
Paronychia +
species +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
divided +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (?) +  and 0.1 cm1 mm <br />0.001 m <br /> (?) +
membranous +
8 (?) +  and 10 (?) +
spatulate-obovate +  and suboblong +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
leathery +  and rigid +
not rhizomatous +  and taprooted +
pubescence of simple hairs or stalked glands +  and glabrous +
9 +, 8 +  and 7 +