Compilation
Utricularia arenaria

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Name

Identification
Utricularia arenaria A.DC. [family LENTIBULARIACEAE ]
Related name
  • Utricularia arenaria

Flora

Entry for UTRICULARIA arenaria A. DC. [family LENTIBULARIACEAE]
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 arenaria A. DC. [family LENTIBULARIACEAE], in DC., Prodr. 8: 20 (1844); P. Taylor in F.W.T.A., ed. 2, 2: 378 (1963) & in K.B. 18: 107 (1964) & in Fl. Afr. Centr., Lentib.: 22 (1972). Type: Senegal, Perrottet (G, holo.!)
UTRICULARIA tribracteata A. Rich. [family LENTIBULARIACEAE], Tent. Fl. Abyss. 2: 18 (1851); Stapf in F.T.A. 4 (2): 475 (1906), pro parte. Type: Ethiopia, Schimper 1943 (FI, G, K, M, MO, P, S, W iso. !)
UTRICULARIA exilis Oliv. [family LENTIBULARIACEAE], in J.L.S. 9: 154 (1865); Stapf in F.T.A. 4 (2): 477 (1906). Types: Angola, Welwitsch 252, 253, 254 & 256 (LISU, syn. !, BM, C, COI, G, K, P, Z, isosyn. !)
UTRICULARIA kirkii Stapf [family LENTIBULARIACEAE], in Fl. Cap. 4 (2): 428 (1904) & in F.T.A. 4 (2): 476 (1906), pro parte. Types: South Africa, Transvaal, Rehmann 5699 & s.n. (Z, isosyn.!)
Information
Terrestrial herb. Rhizoids and stolons capillary, numerous from the base of the scape. Leaves usually numerous at anthesis, scattered on the stolons, linear-oblanceolate to obovate-spathulate, 2–15 mm. long, 0.3–2 mm. wide, 1-nerved. Traps numerous, ovoid, stalked, 0.6–1.0 mm. long; mouth terminal; upper lip projecting ± twice as much as the lower, both provided with radiating rows of glandular hairs. Inflorescence erect, 2–16 cm. high; flowers 1–5(–8), distant; scape filiform, smooth above, usually papillose at the base; scales few, similar to the bracts; bracts basifixed, ovate-lanceolate, acute, ± 1 mm. long; bracteoles similar but narrower; pedicels 0.5–1 mm. long. Calyx-lobes subequal, the upper slightly larger, broadly ovate, acute, lower ovate-oblong, rounded or truncate. Corolla white or lilac with a yellow spot on the palate, 3–7 mm. long; upper lip narrowly oblong, ±1.5 times as long as the upper calyx-lobe, apex rounded, truncate or emarginate; lower lip orbicular; palate raised, double-crested, the crests smooth or transversely tuberculate; spur conical-subulate, ± twice as long as the lower lip. Filaments filiform; anther-thecae subdistinct. Ovary ovoid; style very short; stigma lower lip semi-orbicular, upper much smaller, deltoid. Capsule globose, 1.5–2.5 mm. in diameter, dehiscing by longitudinal ab- and adaxial slits with thickened margins. Seeds numerous, ± 0.2 mm. long, truncate-conical, angular; testa smooth, cells indistinct, oblong.
Range
DISTR. U1, 3, 4; K3–5, 7; T1–3, 6–8; Z; P Senegal to Ethiopia and south to South West Africa and South Africa (Natal), Madagascar and India
Altitude range
sea-level to 2650 m.
Distribution
KENYA Trans-Nzoia District Kitale, 6 Oct. 1958, Bogdan 4666 !KENYA N. Kavirondo District Broderick Falls, Aug. 1964, Tweedie 3083 !KENYA Kilifi District Mida, 3 Dec. 1961, Polhill & Paulo 902 !TANGANYIKA Moshi District between Moshi and Arusha, 15 Dec. 1961, Polhill & Paulo 997 !TANGANYIKA Tanga District Nyamaku, 21 July 1957, Faulkner 2031 !TANGANYIKA Songea District R. Luhira N. of Songea, 18 Mar. 1956, Milne-Redhead & Taylor 9237 !UGANDA Acholi District Gulu, 13 Nov. 1941, A. 8. Thomas 4016!UGANDA Mbale District Sipi, 31 Aug. 1932, A. S. Thomas 454 !UGANDA Masaka District Lake Nabugabo, Aug. 1935, Chandler 1283 !ZANZIBAR Zanzibar I., Kama Swamp, 4 Sept. 1963, Faulkner 3269 !

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