Perityle huecoensis

A. M. Powell

Madroño 30: 219, fig. 2. 1983.

Common names: Hueco rock daisy
Conservation concern
Treatment appears in FNA Volume 21. Treatment on page 333. Mentioned on page 324.

Perennials or subshrubs, 10–20 cm; densely short-hairy. Leaves: petioles 10–80 mm; blades broadly ovate, ovate-deltate, or ovate-rhombic, 5–12 (–15) × 4–10 (–15) mm, margins entire or serrate-lobed. Heads borne singly or in corymbiform arrays, 5.5–6 × 4–6 mm. Peduncles 5–15 mm. Involucres funnelform. Phyllaries 8–10, lanceolate to oblanceolate, 3–4.5 × 0.6–1.2 mm. Ray-florets 3–5; corollas yellow, laminae oblong, 2.5–3 × 1.5–2 mm. Disc-florets 11–13; corollas yellow, tubes 1.3–1.5 mm, throats broadly campanulate-funnelform, 0.8–1.2 mm, lobes 0.5–0.7 mm. Cypselae linear-lanceolate, 2.2–3.2 mm, margins usually thin-calloused, short-hairy; pappi usually of 1–3, antrorsely barbellate bristles 1–2.5 mm plus 0–4 shorter bristles, sometimes plus hyaline, laciniate scales. 2n = 34.


Phenology: Flowering spring–fall.
Habitat: Limestone cliffs
Elevation: 1400–1500 m

Discussion

Of conservation concern.

Perityle huecoensis is found in the United States only in the Hueco Mountains of El Paso County, generally growing on north or northeast facing slopes. Plants in the nearby Sierra Juarez in Mexico tend to lack bristles in pappi on the disc florets and to be taller with larger leaves compared to plants in the United States populations.

Selected References

None.

Lower Taxa

None.
... more about "Perityle huecoensis"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
Sharon C. Yarborough +  and A. Michael Powell +
A. M. Powell +
decurrent +
Undefined sect. Laphamia +
compound +  and simple +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
ovate-rhombic;ovate-deltate;ovate-rhombic;ovate-deltate;ovate +
4mm;10mm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
subequal +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Hueco rock daisy +
linear-lanceolate +
fertile +  and bisexual +
fertile +  and bisexual +
Tex. +  and Mexico (Chihuahua) +
1400–1500 m +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Limestone cliffs +
discoid +  and radiate +
in corymbiform arrays +  and singly +
indeterminate +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
homogamous +  and heterogamous +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
hemispheric;campanulate;hemispheric;campanulate +
0.35 cm3.5 mm <br />0.0035 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
2.5mm;3mm +
1.5mm;2mm +
sessile +  and petiolate +
alternate +  and opposite +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
short-hairy +
serrate-lobed +  and entire +
2-carpellate +
persistent +
0 +  and 4 +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Flowering spring–fall. +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
8 +  and 10 +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
bearing subulate enations +, hairy +  and bristly +
convex;flat +
laciniate +
exalbuminous +
Conservation concern +
erect +  and pendent +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Amauriinae +
Perityle huecoensis +
Perityle sect. Laphamia +
species +
campanulate +  and cylindric +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
lobed +, toothed +  and entire +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +