Photo Ken Hill
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The Cycad Pages
Macrozamia concinna

Macrozamia concinna D.L. Jones, Fl. Australia 48: 718 (1998). H—BRI
"TYPE: Australia, New South Wales, Hanging Rock, 7 Dec. 1994, P.I. Forster 15918B & P. Machin (holo BRI; iso CANB)."


Etymology: Latin, concinnus, neat or elegant, in reference to the compact and tidy habit.

Historical notes:

Distinguishing features: Distinguished by the stiff, strongly spirally twisted leaves with long, more or less terete petioles, and stiff, dark green leaflets with inrolled margins.

Distribution and habitat: A widespread but sporadic species, usually on sloping country in dry sclerophyll woodland through the upper Hunter Valley and north to the hills and ranges around the Liverpool Plains.

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

Description:

Plants acaulescent, stem 8-15 cm diam.

Leaves 1-5 in crown, deep green, semiglossy, 50-90 cm long, strongly to moderately keeled, with 80-120 leaflets; rachis strongly spirally twisted, straight, stiff; petiole 9-24 cm long, straight, unarmed, 4-7 mm wide at lowest leaflets; basal leaflets not reducing to spines.

Leaflets simple, strongly discolorous; margins flat, or incurved (slightly); apex entire, not spinescent; median leaflets 140-210 mm long, 4-6 mm wide.

Pollen cones fusiform, 14-22 cm long, 4-4.5 cm diam.; microsporophyll lamina 16-20 mm long, 14-17 mm wide; apical spine 0-13 mm long.

Seed cones ovoid, 13-15 cm long, 7-8 cm diam.; megasporophyll lamina 25-30 mm long, megasporophyll with an expanded peltate apex 40-45 mm wide, 10-15 mm high; apical spine 2-30 mm long.

Seeds ovoid, 21-26 mm long, 18-24 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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