Seeds of South Australia
Christella dentata (Thelypteridaceae)
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.
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.
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 indusium.
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.