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| Photo Ken Hill
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| The Cycad Pages
| | Encephalartos manikensis
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- Encephalartos manikensis Gilliland (Gilliland), Proc. Rhodesia Sci. Assoc. 37: 133-134 (1939). H—BM
- TYPE: Sthn Rhodesia, Mt Gorongowe, Jul 1937, Gilliland 2016 (holo BM).
Encephalartos gratus var. manikensis Gilliland, ?? ().
- TYPE: In Mujanje in Numkwarara Valley in Mutsatsa zone, Mutete of Chimanyika, Jul 1937, Gilliland 2016 (?).
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| Photo Ken Hill
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Etymology:
From the Manica region (Latinised for combination), western Mozambique,
with the Latin termination -ensis, place of origin.
Literature:
Illustrations:
Vernacular:
Historical notes:
Discovered in 1937 and described in 1938 by South African botanist
Hamish Boyd Gilliland as a variety of the Kenyan species E. gratus, and
raised by the same author to the status of species the year after. The
broadly defined E. manikensis was later separated into a number of
segregates (Dyer & Verdoon 1969), primarily on differences in pollen cone
morphology (see also E. concinnus, E. munchii, E.
pterogonus and E. chimanimaniensis).
Distinguishing features:
A member of the E. manikensis complex, a group of robust cycads from
the region of the Zimbabwe-Mozambique border with stout erect trunks of
medium height, leaves with short petioles and numerous reduced spine-like
leaflets, median leaflets with 1-6 spines on each margin, green cones and
red seed-coats. Pollen cones are similar to seed cones, with scales that are thicker than
those of E. concinnus, lack the curving seen in E. chimanimaniensis and lack
the wings of E. pterogonus.
Distribution and habitat:
Zimbabwe and Mozambique, highlands of the Mapande Range, often around granite outcrops. A
number of isolated populations occur, each usually sufficiently distinctive to be recognisable
(see
Osborne 1994).
Conservation:
1997 IUCN Red List of Threatened Plants
category R.
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| Photo Ken Hill
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Description:
Plants arborescent; stem 1.5 m tall, 30 cm diam.
Leaves 100-200 cm long, dark green, highly glossy, moderately keeled;
rachis green, gently curved, somewhat lax, not spirally twisted; petiole
straight, with 1-6 prickles; leaf-base collar not present; basal leaflets
reducing to spines.
Leaflets lanceolate, weakly discolorous, not overlapping, not lobed,
insertion angle horizontal; margins flat; upper margin lightly toothed (1-3
teeth); lower margin lightly toothed (1-3 teeth); median leaflets 12-15 cm long,
20-25 mm wide.
Pollen cones 1-4, ovoid to narrowly ovoid, green, 22-60 cm long, 7-15
cm diam.
Seed cones 1-4, ovoid, green, 32-50 cm long, 14-18 cm diam.
Seeds oblong, 30-36 mm long, 18-25 mm wide, sarcotesta red.