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| The Cycad Pages
| | Encephalartos chimanimaniensis
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- Encephalartos chimanimaniensis R.A. Dyer & I. Verd., Kirkia 7: 147-158 (1969). H—PRE
- TYPE: Mozambique, Chimanimani Mt, Munch 443; 444; 554 (holo PRE, SRGH) (= Munch ex Christian 770; SRGH, PRE); (= Dyer & Verdoon 5868; 5869; PRE).
Etymology:
From the Chimanimani Mountains, eastern Zimbabwe, with the Latin termination
-ensis, place of origin.
Literature:
Illustrations:
Vernacular:
Historical notes:
Described in 1969 by South African botanists
R.
Allen Dyer and
Inez Verdoon, who separated the
previously broadly defined E. manikensis into a number of segregates,
primarily on differences in pollen cone morphology (see also E.
concinnus, E. pterogonus and E. munchii).
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.
Distribution and habitat:
Known only from the Chimanimani Mountains on the broder between Zimbabwe and
Mozambique, in grassland on granite mountains.
Conservation:
1997 IUCN Red List of Threatened Plants
category E.
Description:
Plants arborescent; stem 1.8 m tall, 45 cm diam.
Leaves 100-150 cm long, light or bright green, highly glossy, flat
(not keeled) in section (opposing leaflets inserted at 180° on rachis);
straight, stiff, slightly twisted in some leaves; 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 obtuse (45-80°); margins flat; upper margin lightly
toothed (1-3 teeth); lower margin lightly toothed (1-3 teeth); median leaflets
12-18 cm long, 20-25 mm wide.
Pollen cones 1-3, fusiform, green, 50-70 cm long, 8-10 cm diam.
Seed cones 1-3, ovoid, green, 40-45 cm long, 18-20 cm diam.
Seeds oblong, 20-30 mm long, 15-20 mm wide, sarcotesta red.