Compilation
Thunbergia longepedunculata
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Name
Identification
Thunbergia longepedunculata De Wild. [family ACANTHACEAE ] Verified by Not on sheet, Thunbergia gregorii S.Moore [family ACANTHACEAE ] (stored under name); Verified by Champluvier D., 2001
Related name
- Thunbergia gregorii
- Thunbergia longepedunculata
Flora
Entry for Thunbergia gregorii S.Moore [family ACANTHACEAE]
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, (2008) Author: Kaj Vollesen
Names
Thunbergia gregorii S.Moore [family ACANTHACEAE], in J.B. 32: 130 (1894); Lindau in P.O.A. C: 366 (1895); Burkill in F.T.A. 5: 17 (1899); T.T.C.L. 2: 17 (1949); Jex-Blake, Gard. E. Afr. (ed. 4): 142 (1957); E.P.A.: 928 (1964); U.K.W.F.: 579 (1974); Cribb & Leedal, Mountain Fl. S. Tanz.: 127, pl. 32 (1982); Champluvier in Fl. Rwanda 3: 489 (1985); U.K.W.F., ed. 2: 267 (1994); Lebrun & Stork, Enum. Pl. Afr. Trop. 4: 506 (1997); Ensermu in F.E.E. 5: 350 (2006). Type: Kenya, Machakos District: Ukambani, Kilungu, Gregory s.n. (BM!, holo.)
Thunbergia exasperata Lindau [family ACANTHACEAE], in E.J. 30: 408 (1901); T.T.C.L. 2: 17 (1949); Lebrun & Stork, Enum. Pl. Afr. Trop. 4: 506 (1997). Type: Tanzania, Mbeya District: Unyika, Nkanka [Unkana], Goetze 1382 (B†, holo.; BR!, iso.)
Thunbergia longepedunculata De Wild. [family ACANTHACEAE], in Ann. Mus. Congo Bot., ser. 4, 1: 136 (1903) & Contrib. Fl. Katanga: 193 (1921); Lebrun & Stork, Enum. Pl. Afr. Trop. 4: 506 (1997). Type: Congo-Kinshasa, Katanga, Verdick s.n. (BR!, holo.)
Thunbergia gibsonii [family ACANTHACEAE], [sensu Turrill in Bot. Mag. 141: t. 8604 (1915), non S.Moore (1894)]
Thunbergia aureosetosa Mildbr. [family ACANTHACEAE], in N.B.G.B. 11: 408 (1932); T.T.C.L. 2: 17 (1949); Lebrun & Stork, Enum. Pl. Afr. Trop. 4: 505 (1997). Type: Tanzania, Njombe District: Lupembe, Ruhudje River, Schlieben 212 (B†, holo.; BM!, BR!, iso.)
Information
Perennial herb with several trailing or twining stems from large woody rootstock; stems to 1 m long in trailing plants and to 3(–5) m in twining plants, sparsely to densely orange setose (hairs to 5 mm long) when young (rarely whitish pubescent or pilose). Leaves with petiole 1.5–6.5 cm long, with a flat broad wing widening upwards but clearly distinct from lamina, indumentum as stems; lamina triangular-cordiform or broadly so, largest 2.5–11≈2–6.7(–8) cm, apex subacute to broadly rounded, base cordate with hastate lobes, margin entire to coarsely and irregularly dentate; pilose or sparsely so or setose on veins (rarely pubescent). Flowers axillary, solitary; pedicels 4–20(–26) cm long, indumentum as stems; bracteoles ovate-oblong, 2.2–4.2≈1.2–2.7 cm, acute to subacuminate, subcordate to deeply cordate and slightly 4-angular at base, orange setose or densely so (rarely whitish pubescent). Calyx puberulous and with capitate glands, rim 1–2 mm high, segments triangular or narrowly so, 0.5–2 mm long. Corolla bright orange, without purple throat; cylindric tube 3–7 mm long; throat sharply curved, campanulate, 1.5–3.5 cm long and 0.8–1.5 cm in diameter apically; lobes 1–2.5≈1.2–2.8 cm, broadly emarginate. Filaments 5–6 and 6–7 mm long; anthers 4–7 mm long, apiculate or not, densely bearded at base and 2/3 along one side; spurs ± 2 mm long. Capsule densely pubescent or pilose, subglobose, 8–14 mm in diameter, beak 10–20 mm long, constricted at base. Seed 5–7 mm in diameter, dark reddish brown, reticulate and with large pectinate scales along edge.
Range
DISTR. U 3; K 4–6; T 2, 4, 7
Altitude range
(900–)1350–2300(–2450) m
Distribution
KENYA Machakos District Ol Doinyo Sapuk, 12 Aug. 1974, Faden 74/1312!KENYA Masai District Ngong Hills, Oct. 1930, Napier 766! & 28 May 1995, Vollesen 95/219!TANZANIA Masai District Ngorongoro, Masikio, 14 Dec. 1961, Msuya 9!TANZANIA Ufipa District 29 km on Namanyere–Karonga road, 5 March 1994, Bidgood et al. 2640!TANZANIA Mbeya District 8 km E of Mbeya, 19 Nov. 1986, Brummitt et al. 18056!UGANDA Mbale District Mt Elgon, 25 Feb. 1993, Katende & Sheil 1921!
Distribution (external)
Ethiopia
Congo-Kinshasa
Burundi
Notes
Specimens from S and W Tanzania generally have larger leaves which are usually entire, and larger corollas. But there are too many intermediates with the material from Kenya and N Tanzania to contemplate separating out two subspecies. Some of the S Tanzanian collections also lack the long orange setose hairs normally so characteristic for T. gregorii. But there are transitional collections with orange hairs on the peduncles but not on the stems and leaves and vice versa. I am treating this form (T. exasperata, s. str.) as no more than a local variant.