Utricularia pubescens Sm.

Species

Angiosperms > Lamiales > Lentibulariaceae > Utricularia

Characteristics

Terrestrial herb.. Rhizoids and stolons capillary, numerous from the base of the scape.. Leaves usually present at anthesis, scattered on the stolons, orbicular, peltate, long-petiolate; lamina fleshy, mucilaginous, 1–5 mm. in diameter; petiole 2–10 mm. long.. Traps numerous, globose, stalked, 0.5–0.8 mm. long; mouth terminal; upper lip projecting; lower lip scarcely projecting, both provided with radiating rows of glandular hairs.. Inflorescence erect, 2–35 cm. high; scape filiform, straight, ± setulose, papillose or rarely entirely glabrous; flowers 1–6(–10), distant; scales few, similar to the bracts; bracts basisolute, shortly produced below the point of insertion, ovate, apex acute, base truncate, ± 1 mm. long, setulose; bracteoles similar to the bracts but narrower; pedicels erect, 0.5–2 mm. long.. Calyx-lobes subequal, broadly ovate, usually setulose; upper lobe ovate, 1.5–3 mm. long, apex acute; lower lobe ovate or orbicular, apex bidentate.. Corolla white or pale lilac, 2–16 mm. long; upper lip 1.5–2 times as long as the upper calyx-lobe, narrowly oblong, apex rounded, truncate or ± emarginate; lower lip orbicular, entire; palate much raised, double-crested, the crests usually transversely tuberculate; spur usually conical-subulate, up to 4 times as long as the lower lip but very variable in length and sometimes much reduced.. Filaments filiform; anther-thecae subdistinct.. Ovary ovoid; style short but usually distinct; stigma lower lip semi-orbicular, upper much smaller, deltoid.. Capsule globose dehiscing by a longitudinal abaxial slit with thickened margins.. Seeds numerous, ovoid; testa-cells distinct, ± isodiametric.
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Corolla white or pale lilac, 2–16 mm. long; superior lip 1.5–2 times as long as the upper calyx lobe, narrowly oblong with apex rounded, truncate or more or less emarginate; inferior lip circular, entire; palate much raised, double crested, the crests usually transversely tuberculate; spur usually conical-subulate, up to 4 times as long as the inferior lip but very variable in length and sometimes much reduced.
Inflorescence erect, 2–35 cm. high; peduncle filiform, straight, more or less setulose, papillose or rarely entirely glabrous; flowers 1–6(10), distant; scales few, similar to the bracts; bracts basisolute, shortly produced below the point of insertion, ovate, with apex acute, base truncate, more or less 1 mm. long, setulose; bracteoles similar to the bracts but narrower; pedicels erect, 0.5–2 mm. long.
Leaves usually present at anthesis, scattered on the stolons, circular, peltate, long-petiolate; lamina fleshy, mucilaginous, 1–5 mm. in diam.; petiole 2–10 mm. long.
Calyx lobes subequal, usually setulose; upper lobe ovate, 1.5–3 mm. long, with apex acute; lower lobe ovate or circular, with apex bidentate.
Traps numerous, globose, stalked, 0.5–0.8 mm. long, mouth terminal, with dorsal and ventral radiating rows of glandular hairs.
Ovary ovoid; style short but usually distinct; inferior lip of stigma semi-circular, superior much smaller, deltoid.
Capsule globose dehiscing by a longitudinal ventral slit with thickened margins.
Flowers white or mauve, very variable in size, calyx and scape often pubescent.
Rhizoids and stolons capillary, numerous from the base of the peduncle.
Seeds numerous, ovoid; testa-cells distinct, more or less isodiametric.
Filaments filiform; anther-thecae subdistinct.
Slender, few-flowered scape
Erect terrestrial herb
Small peltate leaves
Terrestrial herb.
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Growth form herb
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Sexuality hermaphrodite
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Mature height (meter) 0.02 - 0.35
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Environment

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Hardiness (USDA) 9-12

Usage

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Cultivation

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Images

Utricularia pubescens unspecified picture

Distribution

Utricularia pubescens world distribution map, present in Angola, Burkina Faso, Brazil, Central African Republic, Côte d'Ivoire, Cameroon, Colombia, Ethiopia, Guinea, French Guiana, Guyana, India, Liberia, Malawi, Nigeria, Panama, Senegal, Sierra Leone, Tanzania, United Republic of, Uganda, Venezuela (Bolivarian Republic of), and Zambia

Conservation status

Utricularia pubescens threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:527027-1
WFO ID wfo-0000417375
COL ID 7F4W6
BDTFX ID -
INPN ID 733933
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Utricularia pubescens Utricularia connellii Utricularia puberula Utricularia papillosa Utricularia regnellii Utricularia peltata Utricularia sciaphila Utricularia venezuelana Utricularia subpeltata Utricularia graniticola Utricularia peltatifolia Utricularia hydrocotyloides Utricularia fernaldiana Utricularia deightonii Utricularia thomasii