Paronychia maccartii

Correll

Brittonia 18: 307. 1967.

Common names: McCart’s nailwort
EndemicConservation concern
Treatment appears in FNA Volume 5. Treatment on page 40. Mentioned on page 31.

Plants perennial; taproot ± stout. Stems sprawling, branched from base, 3–10 cm, puberulent. Leaves: stipules lanceolate, 2.5–5 mm, apex narrowly acuminate, entire; blade linear-oblong to linear-lanceolate, 2–10 × 0.7–1.5 mm, leathery, apex spinose, minutely puberulent. Cymes terminal, 10–20-flowered, congested, in clusters 0.5–1.5 mm wide. Flowers 5-merous, extended-urceolate, with enlarged hypanthial bulge and calyx cylindric to slightly tapering distally, 3.5-4 mm, moderately pubescent proximally, with minute, hooked hairs on hypanthial bulge, sparsely pubescent on calyx, densely so with hooked to coiled hairs on hood; sepals green to red-purple, midrib apparent, oblong, 1.9–2.1 mm, herbaceous to leathery, margins white, 0.2–0.3 mm wide, papery, apex terminated by awn, hood triangular-rounded, awn erect, becoming widely divergent, white, ± lanceoloid from proximal constriction, 0.8–1.3 mm, slightly scarious, distinct spine absent; staminodes narrowly subulate, 0.6–0.8 mm; style 1, cleft in distal 7/8, 0.7–0.8 mm. Utricles unknown.


Phenology: Flowering spring.
Habitat: Dense red sands
Elevation: 200-300 m

Discussion

Of conservation concern.

Paronychia maccartii is still known only from the type collection in Webb County.

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 maccartii"
awned +  and hooded +
spinose +  and entire +
ascending +  and slightly descending +
puberulent +
acuminate +
Ronald L. Hartman +, John W. Thieret +  and Richard K. Rabeler +
Correll +
prominent +
lanceoloid +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
scarious +
stipulate +  and petiolate +
not +  and connate +
often +  and needlelike +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
linear-oblong +  and linear-lanceolate +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
reduced +
cylindric;slightly tapering +
McCart’s nailwort +
10-20-flowered +
dish--shaped +
expanded +
200-300 m +
peripheral +
connate +  and distinct +
unisexual +  and bisexual +
extended-urceolate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
sometimes +  and indehiscent +
stalked +  and simple +
Dense red sands +
straight +
minute +
triangular-rounded +
tapering +  and cup-shaped +
sessile +  and petiolate +
adjacent +  and opposite +
connate +
all +  and distalmost +
fimbriate +  and entire +
0.2mm +  and 0.3mm +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
herbaceous +  and leathery +
swollen +
3 +  and 5 +
crassinucellate +  and bitegmic +
campylotropous +
fugacious +
4 +  and 5 +
Flowering spring. +
compressed +, subglobose +  and ellipsoid +
green +  and red-purple +
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 />) +
Endemic +  and Conservation concern +
distinct +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (?) +  and 0.08 cm0.8 mm <br />8.0e-4 m <br /> (?) +
erect;ascending;erect;ascending;prostrate +
puberulent +
terete;angular +
3 cm30 mm <br />0.03 m <br /> (10 cm100 mm <br />0.1 m <br />) +
subterminal +
[50 +  and 2 +
papillate +
silvery +  and white +
lanceolate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 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 maccartii +
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 +
ovoid +  and globose or rarely 4-angular +
membranous +
8 (?) +  and 10 (?) +
not rhizomatous +  and taprooted +
pubescence of simple hairs or stalked glands +  and glabrous +
9 +, 8 +  and 7 +