Photo Ken Hill
logo
The Cycad Pages
Macrozamia stenomera

Macrozamia stenomera L.A.S. Johnson, Proc. Linn. Soc. New South Wales 84: 106 (1959).
"TYPE: Australia, New South Wales, above Coryah Gap, Nandewar Mtns., L.A.S. Johnson & E.F. Constable NSW 32204, Nov 1954 (holo NSW)."[NSW]


Etymology: Greek, stenos, narrow, and -merus, part or member, in reference to the finely divided leaflets.

Historical notes:

Distinguishing features: Distinguished by the narrow, hypostomatic and multiply dichotomously divided leaflets.

Distribution and habitat: New South Wales, north-western slopes and western northern tablelands, in and around the Nandewar and Moonbi Ranges. Scattered in dry sclerophyll woodland on stony soils.

Conservation status: Not considered to be at risk (IUCN Red List category LR,lc). 1997 IUCN Red List of Threatened Plants category V.
Photo Ken Hill
Photo Ken Hill

Description:

Plants acaulescent, stem 10-25 cm diam.

Leaves 1-7 in crown, grey-green or blue, semiglossy, 40-90 cm long, moderately keeled, with 70-120 leaflets; rachis not spirally twisted to moderately spirally twisted, straight, stiff or recurved, arching stiffly downwards; petiole 7-15 cm long, straight, unarmed, 4-9 mm wide at lowest leaflet; basal leaflets not reducing to spines.

Leaflets dichotomously branched, strongly discolorous; margins recurved; apex entire, not spinescent; median leaflets 80-200 mm long, 1-4 mm wide.

Pollen cones narrowly ovoid, 15-20 cm long, 5-6 cm diam.; microsporophyll lamina 17-22 mm long, 12-16 mm wide; apical spine 1-14 mm long.

Seed cones ovoid, 10-18 cm long, 6-10 cm diam.; megasporophyll with an expanded peltate apex 40-50 mm wide, 10-15 mm high; apical spine 2-15 mm long.

Seeds ovoid, 26-30 mm long, 18-21 mm wide; sarcotesta red.


The Cycad Pages

© 1998-2012 Royal Botanic Gardens Sydney
Written and maintained by Ken Hill 1998-2010
Maintained by Leonie Stanberg and Dennis Stevenson 2010-2012
This site is currently not being maintained