Edit History
UTRICULARIA welwitschii Oliv. [family LENTIBULARIACEAE]
Date Updated: 19 August 2007
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, page 1, (1973) Author: P. TAYLOR
Names
UTRICULARIA welwitschii Oliv. [family LENTIBULARIACEAE], in J.L.S. 9: 152 (1865); Stapf in F.T.A. 4 (2): 478 (1906); P. Taylor in K.B. 18: 144 (1964), pro parte, excl. vars. & in Fl. Afr. Centr., Lentib.: 18, t. 4/1–18 (1972). Type: Angola, Welwitsch 266 (LISU, holo.!, BM, C, COI, G, K, P, iso.!)
UTRICULARIA welwitschii var. welwitschii [family LENTIBULARIACEAE], ; P. Taylor in K.B. 18: 146 (1964)
Information
Terrestrial herb. Rhizoids and stolons capillary, numerous from the base of the scape. 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. 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. 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. Calyx-lobes subequal, orbicular, 1.5–2.5 mm. long, densely papillose, margin strongly recurved, apex tridenticulate. 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. Filaments filiform; anther-thecae subdistinct. Ovary globose; style obsolete; stigma lower lip semi-orbicular, upper much smaller, deltoid. Capsule globose, ± 1.5 mm. long, dehiscing by ab- and adaxial ovate-lanceolate pores. Seeds numerous, ovoid, angular, 0.25 mm. long; testa smooth, cells indistinct, ± isodiametric.
Range
DISTR. T4, 7, 8 Zaire (Katanga), Rwanda and Burundi to Angola and South Africa (Transvaal)
Altitude range
900–2000 m.
Distribution
TANGANYIKA Kigoma District Kafulu, July 1951, Eggeling 6178!TANGANYIKA Iringa District Dabaga Highlands, 21 Feb. 1962, Polhill & Paulo 1556!TANGANYIKA Songea District Luhira valley, 6 Nov. 1956, Semsei 2615a !
Distribution (external)
Madagascar
Date Updated: 19 August 2007
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, page 1, (1973) Author: P. TAYLOR
Names
UTRICULARIA welwitschii Oliv. [family LENTIBULARIACEAE], in J.L.S. 9: 152 (1865); Stapf in F.T.A. 4 (2): 478 (1906); P. Taylor in K.B. 18: 144 (1964), pro parte, excl. vars. & in Fl. Afr. Centr., Lentib.: 18, t. 4/1–18 (1972). Type: Angola, Welwitsch 266 (LISU, holo.!, BM, C, COI, G, K, P, iso.!)
UTRICULARIA welwitschii var. welwitschii [family LENTIBULARIACEAE], ; P. Taylor in K.B. 18: 146 (1964)
Information
Terrestrial herb. Rhizoids and stolons capillary, numerous from the base of the scape. 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. 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. 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. Calyx-lobes subequal, orbicular, 1.5–2.5 mm. long, densely papillose, margin strongly recurved, apex tridenticulate. 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. Filaments filiform; anther-thecae subdistinct. Ovary globose; style obsolete; stigma lower lip semi-orbicular, upper much smaller, deltoid. Capsule globose, ± 1.5 mm. long, dehiscing by ab- and adaxial ovate-lanceolate pores. Seeds numerous, ovoid, angular, 0.25 mm. long; testa smooth, cells indistinct, ± isodiametric.
Range
DISTR. T4, 7, 8 Zaire (Katanga), Rwanda and Burundi to Angola and South Africa (Transvaal)
Altitude range
900–2000 m.
Distribution
TANGANYIKA Kigoma District Kafulu, July 1951, Eggeling 6178!TANGANYIKA Iringa District Dabaga Highlands, 21 Feb. 1962, Polhill & Paulo 1556!TANGANYIKA Songea District Luhira valley, 6 Nov. 1956, Semsei 2615a !
Distribution (external)
Madagascar
Date Updated: 19 August 2007
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, page 1, (1973) Author: P. TAYLOR
Names
UTRICULARIA welwitschii Oliv. [family LENTIBULARIACEAE], in J.L.S. 9: 152 (1865); Stapf in F.T.A. 4 (2): 478 (1906); P. Taylor in K.B. 18: 144 (1964), pro parte, excl. vars. & in Fl. Afr. Centr., Lentib.: 18, t. 4/1–18 (1972). Type: Angola, Welwitsch 266 (LISU, holo.!, BM, C, COI, G, K, P, iso.!)
UTRICULARIA welwitschii var. welwitschii [family LENTIBULARIACEAE], ; P. Taylor in K.B. 18: 146 (1964)
Information
Terrestrial herb. Rhizoids and stolons capillary, numerous from the base of the scape. 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. 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. 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. Calyx-lobes subequal, orbicular, 1.5–2.5 mm. long, densely papillose, margin strongly recurved, apex tridenticulate. 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. Filaments filiform; anther-thecae subdistinct. Ovary globose; style obsolete; stigma lower lip semi-orbicular, upper much smaller, deltoid. Capsule globose, ± 1.5 mm. long, dehiscing by ab- and adaxial ovate-lanceolate pores. Seeds numerous, ovoid, angular, 0.25 mm. long; testa smooth, cells indistinct, ± isodiametric.
Range
DISTR. T4, 7, 8 Zaire (Katanga), Rwanda and Burundi to Angola and South Africa (Transvaal)
Altitude range
900–2000 m.
Distribution
TANGANYIKA Kigoma District Kafulu, July 1951, Eggeling 6178!TANGANYIKA Iringa District Dabaga Highlands, 21 Feb. 1962, Polhill & Paulo 1556!TANGANYIKA Songea District Luhira valley, 6 Nov. 1956, Semsei 2615a !
Distribution (external)
Madagascar
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