Seeds of South Australia
Veronica derwentiana ssp. anisodonta (Scrophulariaceae)
Kangaroo Island Speedwell
List of species for Veronica
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Seed collecting:
December to March
Herbarium region:
Kangaroo Island
NRM region:
Kangaroo Island
IBRA region
Kangaroo Island (KAN01)Kanmantoo
 Vulnerable   (IUCN: VU D2)   [fluctuates; responds to fire]
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 Veronica]
Name derivation:
Veronica possibly named after Saint Veronica, a nun who died in Milan in 1497.  Alternatively from the Latin 'vera' and 'icon' meaning true image. This is in reference to the legend of the miraculous imprint of the face of Christ on a headcloth that Saint Veronica offered Christ on his way to crucifixion. Derwentiana mean of or from the Derwent River in south-eastern Tasmania; referring to where the species was first collected from. Anisodonta from the Greek 'anisos' meaning unequal and 'dontus' meaning toothed; referring to the irregularly toothed leaves.
Distribution:
Endemic to South Australia and found only on Kangaroo Island, growing in moist gullies.
Status:
Native. Very rare in South Australia.
Fruit type:
Many pale brown capsules along a long spike.
Seed type:
Small convex dark brown seeds to 2 mm long with a wrinkled surface.
Embryo type:
Linear fully developed.
Seed collecting:
Break off the fruit spikes when the capsules are turning brown with hard brown seeds inside. Look for capsules that are un-opened.
Seed cleaning:
Place the fruit spikes in a tray and leave to dry for 1 to 2 weeks. Then rub the capsules by hand or gently with a rubber bung to dislodge the seeds. Use a sieve to separate the unwanted material. Be careful as the seeds are small. 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 viability:
From two collections, the seed viability were high, ranging from 90% to 95%.
Seed germination:
This species has morphophysiological dormancy that can be overcome to promote germination.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA3600 (0.76 g)27-Mar-2005DJD1248-Aug-200690%-18°C
BGA53000 (8.39 g)19-Jan-2006TEE0088-Aug-200695%+5°C, -18°C
Location: BGA — the seeds are stored at the Adelaide Botanic Gardens, MSB — the seeds are stored at the Millennium Seed Bank, Kew, England.
Number of plants: This is the number of plants from which the seeds were collected.
Collection location: The Herbarium of South Australia's region name.
% Viability: Percentage of filled healthy seeds determined by a cut test or x-ray.