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The Cycad Pages
Encephalartos sclavoi

Encephalartos sclavoi "De Luca, D.W. Stev. & A. Moretti", Delpinoa 29-30: 3-5 (1989). H—K
"TYPE: Tanzania, District Tanga, Gologolo, near Lushoto, Sclavo 2, 4 Jan 1986 (holo K, iso MO)."


Etymology: Honoring Jean Pierre Sclavo of France, well-known student and collector of cycads, who discovered this species.

Literature:

Illustrations:

Vernacular:

Historical notes: Described in 1990 by botanists Aldo Moretti, D.W. Stevenson and Paolo Deluca.

Distinguishing features: Very thick broad leaflets; yellow stalked cones (short stalks in the pollen cones)

Distribution and habitat: Tanzania

Conservation: 1997 IUCN Red List of Threatened Plants category R.

Description:

Plants arborescent; stem 1 m tall, 35 cm diam.

Leaves 170-200 cm long, dark green, semiglossy, slightly keeled to flat in section; rachis green, straight, stiff or gently curved, somewhat lax, not spirally twisted or slightly twisted in some leaves; petiole straight, with 1-6 prickles; leaf-base collar not present; basal leaflets reducing to spines.

Leaflets lanceolate, strongly discolorous, not lobed, insertion angle obtuse (45-80°); margins incurved; upper margin lightly toothed (1-3 teeth); lower margin lightly toothed (1-3 teeth); median leaflets 18-25 cm long, 30-40 mm wide.

Pollen cones 1-2, narrowly ovoid, yellow, 20-25 cm long, 10 cm diam.

Seed cones 1-2, ovoid, yellow, 30-40 cm long, 15-20 cm diam.

Seeds oblong, 25-30 mm long, 20 mm wide, sarcotesta yellow.


The Cycad Pages

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Written and maintained by Ken Hill 1998-2010
Maintained by Leonie Stanberg and Dennis Stevenson 2010-2012
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