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BASANANTHE lanceolata (Engl.) de Wilde [family PASSIFLORACEAE]

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, (1975) Author: W. J. J. O. de Wildem (Rijksherbarium, Leiden)
Names
BASANANTHE lanceolata (Engl.) de Wilde [family PASSIFLORACEAE], in Blumea 21 : 345, fig. 3/d–h (1973). Type : Tanzania, without precise locality, Fischer 268 (B, holo.†, BM, drawing of leaf) Tryphostemma lanceolatum Engl. [family PASSIFLORACEAE], in E.J. 14 : 388 (1891); Harms in E.J. 15 : 577 (1893) & in P.O.A. C : 281 (1895); Hutch. & Pearce in K.B. : 264 (1921); Harms in N.B.G.B. 8 : 292 (1923) Tryphostemma cuneatum Engl. [family PASSIFLORACEAE], V.E. 3 (2) : 598 (1921). Type : Tanzania, Tanga District, Moa, Kassner 46 (B, holo.†, BM, K, iso. !) Tryphostemma alatopetiolatum Harms [family PASSIFLORACEAE], in N.B.G.B. 13 : 424 (1936). Type : Tanzania, Lindi District, Mbemkuru R., Schlieben 5996 (B, holo.†, BM, BR, HBG, iso. !) Tryphostemma longifolium [family PASSIFLORACEAE], [sensu Agnew, U.K.W.F. : 166 (1974), non Harms]
Information
Erect, climbing or prostrate annual or perennial, mostly branched, 15–80 cm., glabrous. Tendrils 2–10 cm., or absent. Leaf-blades unlobed or deeply (2–)3-lobed, lanceolate to broadly ovate, 1–12 by 0.5–4 cm., base subtruncate to narrowly cuneate or attenuate, top subobtuse to acute-acuminate; lobes elliptic to oblong; margin serrate-dentate with teeth up to 2 mm.; petiole (0.1–)0.5–5(–7) cm., usually narrowly to broadly winged and with small gland-teeth. Stipules 3–11 mm. False stipules absent. Inflorescences 1–2-flowered; peduncle (0.5–)1–4 cm.; bracts 1–3 mm. Flowers glabrous; stipe 3–8(–10) mm. Hypanthium 1.5–4 mm. wide. Sepals 5–11 mm., ± obtuse. Petals 2–7 mm. Outer corona-tube 1.5–2 mm., threads 1.5–2.5 mm. Disk 0.2–0.5 mm. Inner corona cup- or funnel-shaped, 0.6–2 mm. Stamens 5; filaments 2–3.5 mm.; anthers 1–4 mm. Ovary 0.6–2.5 mm.; styles free or up to 1 mm. connate, (1–)1.5–4 mm. Fruit (excluding the up to 5 mm. long gynophore) 1–1.8 cm., containing 1–5 seeds. Seeds ± 6 mm.
Range
DISTR. K1, 4, 7; T2, 3, 6–8; Z not known elsewhere
Altitude range
0–1700 m.
Distribution
KENYA Northern Frontier Province Lolokwi Mt., 26 Dec. 1969, Gillett 18966 !KENYA Meru District Meru Game Reserve, 11 Sept. 1963, Verdcourt 3749 !KENYA Kwale District between Umba and Mwena Rivers, 18 Aug. 1953, Drummond & Hemsley 3856 !TANZANIA Moshi District Sanya Plains, Apr. 1967, Beesley 273 !TANZANIA Tanga District Mtotohovu, 11 Sept. 1951, Greenway 8710 !TANZANIA Lindi District Mbemkuru R., 15 Feb. 1935, Schlieben 5996 !TANZANIA Zanzibar I., Herb. d’Alleizette 2589 ! (in L, a deviating specimen)
Notes
Very variable in leaf-shape. Decumbent specimens (e.g. Renvoize 2215, Rawlins 133, 122), as well as certain erect specimens (e.g. Greenway & Kanuri 12810, Lenthold 105, and Schlieben 5996) have long, narrowly winged petioles. Such specimens have relatively small flowers and fruits.  The perennial specimens Bally 8000, 8001, 8361, Drummond & Hemsley 1263, Gilbert 4899 and Verdcourt 3749, from K4 and T2, have lanceolate-linear leaves, sessile or with a very short unwinged petiole. In these specimens the tendrils are sometimes little developed or absent, and the leaf-margin is inconspicuously dentate.  A few specimens with some characters intermediate with B. hanningtoniana are discussed under that species. The specimen Herb. d’Alleizette 2589 (L), annotated as from Zanzibar, has a deviating habit. It consists of two shoots of ± 30 cm. from a woody rootstock. The leaves are lanceolate, with an unwinged petiole up to 2 mm., with 2 small tooth-like glands at the blade-base. The ovary is ± 1 mm. stiped (gynophore). The heterogeneity within this species, as well as in B. hanningtoniana, needs further study.
BASANANTHE lanceolata (Engl.) de Wilde [family PASSIFLORACEAE]
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