Agelanthus zizyphifolius (Engl.) Polhill & Wiens

This species is accepted, and its native range is Kenya to NW. Tanzania and Burundi.

[FTEA]

Loranthaceae, Polhill & D. Wiens. Flora of Tropical East Africa. 1999

Morphology General Habit
Shrub 40–100 cm. or so; branchlets slightly compressed to 4-angular, then terete, glabrous to red-brown tomentose.
Morphology Leaves
Leaves alternate to subopposite, rather densely set; petiole 1–2(–5) mm. long; lamina leathery to rather thick and brittle, dull yellowish green, oblong-oblanceolate to oblong-obovate or elliptic, 2.5–10(–15) cm. long, 1–4(–4.5) cm. wide, obtuse to shortly rounded at the apex, attenuate at the base, glabrous or some hairs towards margins and base, 3(–5)-nerved from a little above the base.
Morphology Reproductive morphology Flowers
Flowers clustered in axils or at old nodes; pedicels 0–3 mm. long; bract cupular with a small triangular limb, 3–4 mm. long, ciliolate and sometime puberulous.
Morphology Reproductive morphology Flowers Receptacle
Receptacle 1.5 mm. long.
Morphology Reproductive morphology Flowers Calyx
Calyx tubular, 3–5 mm. long, shortly to distinctly toothed, ciliolate.
Morphology Reproductive morphology Flowers Corolla
Corolla 3–4.5 cm. long, pink below, sometimes with a green or red band at top of tube, whitish over vents, with red tips to lobes; apical swelling of bud slight, oblong to oblong-fusiform, 4–5 mm. long, 1.5–2 mm. in diameter; basal swelling 4–7 mm. long, 2–4 mm. in diameter, with tube narrowly constricted for 3–4 mm. above; lobes erect, 8–9 mm. long, with the upper three-eighths to two-thirds linear-oblanceolate, pointed, slightly keeled and hardened inside.
Morphology Reproductive morphology Flowers Androecium Stamens
Filaments red to purple, inflexed to involute, slightly tapered, corrugated, last 0.5–0.8 mm. paler, smooth, hardened; anthers 2–2.5 mm. long.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Style green or whitish, slender to slightly winged opposite the filaments (then with a slight neck below stigma); stigma ovoid-conic, 0.7–0.8 mm. across.
Morphology Reproductive morphology Fruits
Berry red, ellipsoid-obovoid, 8 mm. long, 7 mm. in diameter, with persistent calyx; seed pink or yellow.

[FZ]

Flora Zambesiaca. Vol. 9, Part 3. Polygonaceae-Myriaceae. Pope GV, Polhill RM, Martins ES. 2006.

Type
Type:from Tanzania. Type from Tanzania.
Morphology Leaves
Leaves alternate to subopposite, rather densely set; petiole 1–2(5) mm long; lamina leathery to rather thick and brittle, dull yellowish-green, 2.5–10(15) × 1–4(4.5) cm, oblong-oblanceolate to oblong-obovate or elliptic, obtuse to shortly rounded at apex, attenuate at base, glabrous or some hairs towards margins and base, 3(5)-nerved from a little above base Leaves alternate to subopposite, rather densely set; petiole 1–2(5) mm long; lamina leathery to rather thick and brittle, dull yellowish-green, 2.5–10(15) × 1–4(4.5) cm, oblong-oblanceolate to oblong-obovate or elliptic, obtuse to shortly rounded at apex, attenuate at base, glabrous or some hairs towards margins and base, 3(5)-nerved from a little above base.
Morphology Reproductive morphology Flowers
Flowers clustered in axils or at old nodes; pedicels 0–3 mm long; bract 3–4 mm long, cupular with a small triangular limb, ciliolate and sometimes puberulous Flowers clustered in axils or at old nodes; pedicels 0–3 mm long; bract 3–4 mm long, cupular with a small triangular limb, ciliolate and sometimes puberulous.
Morphology Reproductive morphology Flowers Receptacle
Receptacle 1.5 mm long; calyx 3–5 mm long, tubular, shortly to distinctly toothed, ciliolate Receptacle 1.5 mm long.
Morphology Reproductive morphology Flowers Corolla
Corolla 3–4.5 cm long, pink below, sometimes with a green or red band at top of tube, whitish over vents, with red tips to lobes; apical swelling of bud slight, 4–5 × 1.5–2 mm, oblong to oblong-fusiform; basal swelling 4–7 × 2–4 mm, with tube narrowly constricted for 3–4 mm above; lobes erect, 8–9 mm long, with upper three-eighths to two-thirds linear-oblanceolate, pointed, slightly keeled and hardened inside Corolla 3–4.5 cm long, pink below, sometimes with a green or red band at top of tube, whitish over vents, with red tips to lobes; apical swelling of bud slight, 4–5 × 1.5–2 mm, oblong to oblong-fusiform; basal swelling 4–7 × 2–4 mm, with tube narrowly constricted for 3–4 mm above; lobes erect, 8–9 mm long, with upper three-eighths to two-thirds linear-oblanceolate, pointed, slightly keeled and hardened inside.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamen filaments red to purple, inflexed to involute, slightly tapered, corrugated, last 0.5–0.8 mm paler, smooth, hardened; anthers 2–2.5 mm long Stamen filaments red to purple, inflexed to involute, slightly tapered, corrugated, last 0.5–0.8 mm paler, smooth, hardened; anthers 2–2.5 mm long.
Morphology Reproductive morphology Flowers Gynoecium Style
Style green or whitish, slender to slightly winged opposite filaments (then with a slight neck below stigma); stigma 0.7–0.8 mm across, ovoid-conic. Berry red, 8 × 7 mm, ellipsoid-obovoid, with persistent calyx; seed pink or yellow.
Note
The northern populations are conspicuously hairy, the southern populations, formerly referred to Loranthus vittatus, are glabrous or almost so, with the central Tanzanian plants (including the type) intermediate, with rather sparse indumentum. The montane forest form from Mbulu to the Nyika Plateau differs from subsp. zizyphifolius of Kenya and northern Tanzania essentially only in the lack of hairs, but from southern Tanzania southwards the subspecies descends along rivers into the plateaux, very commonly found on Syzygium. This form tends to have shortly pedicellate (rather than sessile) flowers and the style tends to be slightly winged opposite the filaments creating a slight neck below the stigma. In the Mbala-Kasama region of northern Zambia the calyx is markedly lobed. In northern Zimbabwe, around the Great Dyke, the species is adapted to wooded grassland and common on Diplorhynchus; the seeds of this form are yellow, not pink as seen in northern Malawi. There is clearly some incipient divergence, but, on present evidence, insufficient to warrant formal taxonomic recognition.
Morphology Branches
Branchlets and leaves glabrous.
Ecology
Montane and riverine forest, extending marginally into adjacent miombo woodland and in Zimbabwe into wooded grassland; 500–2200 m; commonly on Syzygium, sometimes on other forest trees, in Zimbabwe commonly on Diplorhynchus; found flowering in most months, but with the main flush during the rains.
Distribution
Eastern Rift from Mbulu in northern Tanzania, south to central Zimbabwe and westwards into Katanga (Shaba) Province of Dem. Rep. Congo. Flanks and adjacent plateaux of eastern Rift Valley from central Kenya to central Zimbabwe, extending west to Burundi, Katanga (Shaba) Province of Dem. Rep. Congo, and Zambia. Mozambique Malawi Zimbabwe ZAM N, ZAM W, ZAM C, ZAM E, ZAM S, ZIM N, ZIM C, MAL N, MAL C, MOZ N Zambia
Morphology General Habit
Shrub extending to 40–100 cm or so; branchlets slightly compressed to 4-angular, then terete, glabrous to red-brown tomentose. Shrub extending to 40–100 cm or so; branchlets slightly compressed to 4-angular, then terete, glabrous to red-brown tomentose
Morphology Reproductive morphology Flowers Calyx
Calyx 3–5 mm long, tubular, shortly to distinctly toothed, ciliolate.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Style green or whitish, slender to slightly winged opposite filaments (then with a slight neck below stigma); stigma 0.7–0.8 mm across, ovoid-conic.
Morphology Reproductive morphology Fruits
Berry red, 8 × 7 mm, ellipsoid-obovoid, with persistent calyx; seed pink or yellow.

Native to:

Burundi, Kenya, Malawi, Mozambique, Tanzania, Zambia, Zaïre, Zimbabwe

Agelanthus zizyphifolius (Engl.) Polhill & Wiens appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
Forstreuter, W. [FW 9122], Kenya 64422.000 No

First published in J.-P.Lebrun & A.L.Stork, Énum. Pl. Fleurs Afr. Trop. 2: 166 (1992)

Accepted by

  • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 529. MIM, Deurne.
  • Polhill, R.M. & Wiens, D. (1998). Mistletoes of Africa: 1-370. Royal Botanic Gardens, Kew.

Literature

Flora Zambesiaca

  • F.T.E.A., Loranthaceae: 50 (1999).
  • F.T.E.A., Loranthaceae: 51, fig. 10/7–12 (1999).
  • Lebrun & Stork, Enum. Pl. Afr. Trop. 2: 166 (1992)
  • Lebrun & Stork, Enum. Pl. Afr. Trop. 2:166 (1992)
  • Mistletoes Afr.: 154, photo. 55 (1998)
  • Mistletoes Afr.: 155, photo. 56, fig. 13D (1998)
  • White, Dowsett-Lemaire & Chapman, Evergr. For. Fl. Malawi: 349 (2001).

Flora of Tropical East Africa

  • Polh. & Wiens in Lebrun & Stork, Énum. Pl. Fl. Afr. Trop. 2: 166 (1992)
  • Polh. & Wiens in Mistletoes Afr.: 154 (1998).
  • Polh. & Wiens in Upland Kenya Wild Flowers, ed. 2: 156 (1994)

  • 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

  • Kew Backbone Distributions

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. 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 2022. 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