Seeds of South Australia
Allocasuarina mackliniana ssp. mackliniana (Casuarinaceae)
Coarse Oak-bush
List of species for Allocasuarina
Click on an image to enlarge it
Seed collecting:
January to December
Herbarium regions:
Southern Lofty, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, South East
IBRA regions
Glenelg Plain (NCP02)Naracoorte Coastal Plain
 Rare   (IUCN: RA d(ii))   [edge of range]
Lucindale (NCP03) 
 Least Concern
Tintinara (NCP04) 
 Rare   (IUCN: RA d(ii))   [edge of range]
Fleurieu (KAN02)Kanmantoo
 Vulnerable   (IUCN: VU D2)   [localised; limited habitat; needs sand]
Lowan Mallee (MDD04)Murray Darling Depression
 Rare   (IUCN: RA d(i,ii))   [likes sand dunes, limited range]
Wimmera (MDD05) 
 Rare   (IUCN: RA d(i,ii))   [edge of range]
RSCA map:
Regional Species Conservation Assessments per IBRA subregion. Please click the thumbnail map.
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Allocasuarina]
Name derivation:
Allocasuarina from the Greek 'allos' meaning other or different, indicating the relationship with the genus Casuarina (first used by Rumphius (1743) in allusion to the supposed resemblance of the "foliage" of Casuarina equisetifolia to the plumage of the Cassowary, which is from the Malay 'kesuari', later being latinised as Casuarius). Mackliniana named after Miss Ellen Dulcie Macklin, an Adelaide botanist who published very useful pioneering work on Casuarina.
Distribution:
Found in the southern Mount Lofty Ranges and the South-east in South Australia, growing in heath in sandy soils. Also found in Victoria.
Status:
Native. Uncommon in South Australia. Uncommon in Victoria.
Plant description:
Dioecious or rarely monoecious shrub 3 m high with smooth bark and ascending stems (look like leaves) to 20 cm long. Stem segment (article) to 17 mm long and 1.4 mm diameter, smooth, with furrows usually glabrous and round ridges; teeth (reduced leaves) 7–10 to 2 mm long, usually overlapping at least at bases. Male spikes very dense and thick, reddish-brown. Female flowers red, single. Cones cylindrical, occasionally broader than long, sessile or on peduncle to 3 mm long with cone body to 22  mm long and 14 mm diameter. This subspecies differs from the other subspecies found in South Australia, A. mackliniana ssp. xerophila which has pubescent furrows when young and the ridge (phyllichnia) nearly flat to slightly rounded. Allocasuarina mackliniana ssp. hirtilinea is restricted to the Grampians in Victoria. Flowering between August and October.
Fruit type:
Grey-brown, woody cylindrical cone on short peduncle with numerous valves.
Embryo type:
Investing.
Seed collecting:
Cones can be collected anytime as mature cones remain on the female plant. Collect cones that have closed valves from the lower part of the stem as these are more mature.
Seed cleaning:
Place cones in a tray and leave to dry for 2-3 weeks. This will allow the valves to dry and open releasing the seeds. Place the dried cones in a bucket and shake gently to dislodge the seeds. Use a sieve to separate seeds from the unwanted material. Store the seeds with a desiccant such as dried silica beads or dry rice, in an air tight container in a cool and dry place.
Seed germination:
Seeds are non-dormant, viable seed should germinate readily.