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The Cycad Pages
Macrozamia fraseri

Macrozamia fraseri Miq., Monogr. Cycad.: 37 (1842).
"TYPE: Australia, Western Australia, mouth of the Swan River, W.A., C. Fraser s.n. (holo ?U)."


Photo Ken Hill
Etymology: Honouring Western Australian surveyor and pastoralist Charles Fitzgerald Fraser (1883-1951), collector of the type specimen.

Historical notes: Treated by Jones (1993) as Macrozamia 'species Enneabba'.

Distribution and habitat: South-western Australia, from Enneabba south to Perth. Locally abundant but somewhat sporadic, in shrublands and heath, usually on deep sand.

Distinguishing features: The Western Australian species of Macrozamia are a closely related group, characterised by the more or less terete petioles with a few reduced spinescent leaflets. M. fraseri is separated by the robust and often arborescent habit, keeled leaves, densely woolly crowns and large cones.

Conservation status: Not considered to be at risk (IUCN Red List category LR,lc).
Photo Ken Hill
Photo Ken Hill

Description:

Plants arborescent or acaulescent, stem 0-3 m tall, 40-70 cm diam.

Leaves 30-100 in crown, grey-green, semiglossy, 137-270 cm long, moderately keeled (opposing leaflets inserted at 90-150° on rachis), with 112-174 leaflets; rachis not spirally twisted, recurved, arching stiffly downwards; petiole 18-55 cm long, straight, spinescent; basal leaflets reducing to spines.

Leaflets simple, concolorous to weakly discolorous; margins flat; apex entire, spinescent; median leaflets 185-340 mm long, 7.5-14 mm wide.

Pollen cones fusiform, 30-48 cm long, 10-14 cm diam.; microsporophyll lamina 25-50 mm long, 17-26 mm wide; apical spine 15-90 mm long.

Seed cones ovoid, 35-45 cm long, 15-17 cm diam.; megasporophyll with an expanded peltate apex 45-60 mm wide, 25-35 mm high; apical spine 5-60 mm long.

Seeds ovoid, 40-50 mm long, 25-30 mm wide; sarcotesta red.


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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