Seeds of South Australia
Christella dentata (Thelypteridaceae)
Binung
List of species for Christella
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Herbarium regions:
Flinders Ranges, Eyre Peninsula, Murray
NRM regions:
Eyre Peninsula, South Australian Arid Lands, South Australian Murray-Darling Basin
IBRA regions
Southern Flinders (FLB04)Flinders Lofty Block
 Vulnerable   (IUCN: VU D2)   [DD, undercollected, climate change a threat, isolated]
Murray Mallee (MDD02)Murray Darling Depression
 Rare   (IUCN: RA d(i,ii))   [needs more survey work (from a boat)]
Murray Scroll Belt (RIV06)Riverina
 Vulnerable   (IUCN: VU D2)   [needs more survey work (from a boat)]
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 Christella]
Name derivation:
Christella named after Konrad Hermann Heinrich Christ (1833-1933), a Swiss pteridologist botanist who specialized in ferns. Dentata from the Latin 'dens' meaning tooth; referring to the lobed pinnae.
Distribution:
Found mainly along the Murray River in South Australia, with a few records from the southern Flinders Ranges and  the upper Eyre Peninsula, growing on damp banks or in hollows in the limestone cliffs. Also found in all mainland states.
Status:
Native. Rare in South Australia. Rare in Western Australia and Victoria. Common in the other states.
Plant description:
Somewhat soft and delicate fern, producing numerous tufts of pinnate fronds from a stout, somewhat woody, creeping rhizome. Rhizome, usually semi-exposed, covered in the frond base remnants. Fronds not long-persistent, broadly ovate to oblong in outline, to 2 m long, pale green to yellow-green, soft, covered in soft velvety hairs.
Fruit type:
Sori (spores) on the underside margins of the fronds between the lobes. Sorus covered by a heart- to kidney-shaped indusia.
Seed type:
Very fine spores.
Seed collecting:
Collect fronds containing sori.
Seed cleaning:
Shake fronds to dislodge the spores onto a clean piece of paper. Store spores in liquid nitrogen.