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This species is accepted, and its native range is Tanzania to S. Africa, Central Madagascar.
A specimen from Kew's Herbarium

[FTEA]

Lentibulariaceae, P. Taylor. Flora of Tropical East Africa. 1973

Morphology General Habit
Terrestrial herb.
Morphology General Rhizoids
Rhizoids and stolons capillary, numerous from the base of the scape.
Morphology Leaves
Leaves scattered on the stolons, often decayed at anthesis, obovate-spathulate to linear-oblanceolate, up to 3 cm. long, 0.5–2 mm. wide, 1-nerved.
Morphology General Traps
Traps numerous, ovoid, 0.4–0.8 mm. long, stalked; mouth terminal; upper lip projecting, fringed with ± 5 glandular hairs; lower lip with radiating rows of ± sessile glands.
Morphology Reproductive morphology Inflorescences
Inflorescence erect, simple or branched above, 4–50 cm. high; scape usually robust, straight or twining, smooth; inflorescence-axis usually flexuous; flowers 1–25 or more, usually distant; scales numerous, similar to the bracts; bracts basifixed, lanceolate to ovate, 0.6–1.6 mm. long; bracteoles lanceolate, ± as long as the bracts; pedicels up to 1 mm. long.
Morphology Reproductive morphology Flowers Calyx
Calyx-lobes subequal, orbicular, 1.5–2.5 mm. long, densely papillose, margin strongly recurved, apex tridenticulate.
Morphology Reproductive morphology Flowers Corolla
Corolla usually violet with a yellow blotch on the palate, sometimes wholly yellow, 5–15 mm. long; upper lip broadly ovate to orbicular, 2–4 times as long as the upper calyx-lobe, apex rounded, truncate or emarginate; lower lip orbicular, apex rounded, entire or obscurely 3-crenate; palate raised, usually distinctly 2-gibbous; spur subulate, acute, 1.5–2 times as long as the lower lip.
Morphology Reproductive morphology Flowers Androecium Stamens
Filaments filiform; anther-thecae subdistinct.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary globose; style obsolete; stigma lower lip semi-orbicular, upper much smaller, deltoid.
Morphology Reproductive morphology Fruits
Capsule globose, ± 1.5 mm. long, dehiscing by ab- and adaxial ovate-lanceolate pores.
Morphology Reproductive morphology Seeds
Seeds numerous, ovoid, angular, 0.25 mm. long; testa smooth, cells indistinct, ± isodiametric.
Habitat
Marshy grassland; 900–2000 m.
Distribution
T4 T7 T8 Zaire (Katanga), Rwanda and Burundi to Angola and South Africa (Transvaal)

[FZ]

Lentibulariaceae, P. Taylor. Flora Zambesiaca 8:3. 1988

Morphology General Habit
Terrestrial herb.
Morphology General Rhizoids and Stolons
Rhizoids and stolons capillary, numerous from the base of the peduncle.
Morphology Leaves
Leaves scattered on the stolons, often decayed at anthesis, obovate-spathulate to linear-oblanceolate, up to 30 × 0.5–2 mm., 1-nerved.
Morphology General Traps
Traps numerous, ovoid, 0.4–0.8 mm. long, stalked; mouth terminal with a dorsal fringe of more or less 5 glandular hairs and ventral radiating rows of more or less sessile glands.
Morphology Reproductive morphology Inflorescences
Inflorescence erect, simple or branched above, 4–50 cm. high; peduncle usually robust, straight or twining, smooth; inflorescence-axis usually flexuous; flowers 1–25 or more, usually distant; scales numerous, similar to the bracts; bracts basifixed, lanceolate to ovate, 0.6–1.6 mm. long; bracteoles lanceolate, more or less as long as the bracts; pedicels up to 1 mm. long.
Morphology Reproductive morphology Flowers Calyx
Calyx lobes subequal, circular, 1.5–2.5 mm. long, densely papillose, margin strongly incurved, with apex tridenticulate.
Morphology Reproductive morphology Flowers Corolla
Corolla usually violet with a yellow blotch on the palate, sometimes wholly yellow, 5–15 mm. long; superior lip broadly ovate to circular, 2–4 times as long as the upper calyx lobe, with apex rounded, truncate or emarginate; inferior lip circular, with apex rounded, entire or obscurely 3-crenate; palate raised, usually distinctly 2-gibbous; spur subulate, acute, 1.5–2 times as long as the inferior lip.
Morphology Reproductive morphology Flowers Androecium Stamens
Filaments filiform; anther-thecae subdistinct.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary globose; style obsolete; stigma inferior lip semi-circular, superior much smaller, deltoid.
Morphology Reproductive morphology Fruits
Capsule globose, more or less 1.5 mm. long, dehiscing by dorsal and ventral ovate-lanceolate pores.
Morphology Reproductive morphology Seeds
Seeds numerous, ovoid, angular, 0.25 mm. long; testa smooth, cells indistinct, more or less isodiametric.

Native to:

Angola, Madagascar, Malawi, Northern Provinces, Tanzania, Zambia, Zaïre, Zimbabwe

Utricularia welwitschii Oliv. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Welwitsch. [266], Angola K000430244 Unknown type material
Welwitsch [263], Angola K000430245 Unknown type material
Hess-Wyss, H. [52/1463], Angola K001009317
Hess-Wyss, H. [51/454], Angola K001009318
Hess-Wyss, H. [52/299], Angola K001009316
Baum, H. [305], Angola K001009325
Stopp, K. [BO127], Angola K001009320
Humbert, H. [16688], Angola K001009322
Faulkner, H.G. [A373], Angola K001009324
Gossweiler, J. [s.n.], Angola K001009321
Hess-Wyss, H. [51/371], Angola K001009319
Gossweiler, J. [s.n.], Angola K001009323

First published in J. Linn. Soc., Bot. 9: 152 (1865)

Accepted by

  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
  • Launert, E. (ed.) (1988). Flora Zambesiaca 8(3): 1-118. Royal Botanic Gardens, Kew.
  • Taylor, P. (1989). The Genus Utricularia: a taxonomic monograph: 1-724. Her Majesty's stationery office, London.

Literature

Kew Backbone Distributions

  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
  • Taylor, P. (1989). The Genus Utricularia: a taxonomic monograph: 1-724. Her Majesty's stationery office, London.

Flora of Tropical East Africa

  • Oliv. in Journal of the Linnean Society of London, Botany 9: 152 (1865).
  • P. Taylor in Fl. Afr. Centr., Lentib.: 18, t. 4/1–18 (1972).
  • P. Taylor in Kew Bulletin 18: 144 (1964), pro parte, excl. vars.
  • Stapf in Flora of Tropical Africa 4 (2): 478 (1906).

Flora Zambesiaca
Flora Zambesiaca
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0