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| Photo Ken Hill
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| The Cycad Pages
| | Encephalartos laevifolius
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- Encephalartos laevifolius Stapf & Burtt Davy, Fl. Transvaal & Sw. 1: 40 & 99 (1926). H—K
- TYPE: loc. unknown, Todd s.n. (holo K).
Etymology:
Latin laevis, smooth and folius, leaf, in reference to the
lack of tomentum in comparison to the related E. lanatus.
Literature:
Illustrations:
Vernacular:
Historical notes:
Described in 1926 by English botanists
Otto
Stapf and
Joseph Burtt Davy.
Distinguishing features:
The robust stems and relatively narrow entire leaflets emerging with a
bluish tint and turning dark green with age place this species nearest to
E. lanatus and E. friderici-guilielmi. It is distinguished
from both by the straight and flat leaves and the almost smooth crowns,
leaf-bases and cones.
Distribution and habitat:
South-eastern Transvaal Province and north-eastern Natal, South Africa, and
adjacent parts of Swaziland, in grassland or low shrubs on steep rocky
slopes.
Conservation:
1997 IUCN Red List of Threatened Plants
category E.
Description:
Plants arborescent; stem 3 m tall, 25 cm diam.
Leaves 150 cm long, blue or silver to blue green, dull, moderately
keeled or slightly keeled (opposing leaflets inserted at 90-150° on
rachis); rachis yellowish, straight, stiff, not spirally twisted; petiole
straight, with no prickles; leaf-base collar not present; basal leaflets not
reducing to spines.
Leaflets linear, weakly discolorous, not overlapping, not lobed,
insertion angle obtuse (45-80°); margins flat; upper margin entire (no
teeth); lower margin entire (no teeth); median leaflets 12-15 cm long, 5-7 mm
wide.
Pollen cones 1-6, ovoid, yellow, 30-40 cm long, 10 cm diam.
Seed cones 1-5, ovoid, yellow, 20-30 cm long, 15-20 cm diam.
Seeds ovoid, 25-27 mm long, 20-23 mm wide, sarcotesta yellow.