|The Cycad Pages
- Encephalartos delucanus "Malaisse, Sclavo & Crosiers", Ann. Gembloux 98: 153 (1992). H—BR
- "TYPE: Tanzania, Western Province, District Mpanda (5 45'S 31 30'E), Mgoga, 30 km S of Katambike, Sclavo 180 (holo BR)."
Honoring Professor Paolo Deluca, of the University
of Naples, well-known student of cycads.
Described in 1992 by botanists and horticulturists
One of a group of dwarf central African species (the E. poggei complex)
that also includes E. schmitzii, E.
marunguensis and E. schaijesii.
Stemless, with small green cones.
Distribution and habitat:
1997 IUCN Red List of Threatened Plants
Plants acaulescent; stem 0.12 m tall, 10-20 cm diam; 6-9 leaves in
Leaves 50-65 cm long, dark green, semiglossy, strongly keeled
(opposing leaflets inserted at 70-75° on rachis), with 50-75 leaflets;
rachis green, straight with last third sharply recurved, not spirally twisted;
petiole straight, with 1-6 prickles, spine-free for 4.5 cm; leaf-base collar not
present; basal leaflets reducing to spines.
Leaflets linear or lanceolate, strongly 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 13-15 cm long, 11-14 mm wide.
Pollen cones fusiform, green, 10-12 cm long, 2-3 cm diam.