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Journal Number 96
August 2005
ELEMENTARY ED HATCH
Greenhoods 3: Tidying up the Odds and Ends
Drawings by Bruce Irwin and Ian St George
Small Plants with a Basal Rosette and Several Flowers
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Pterostylis tanypoda
(the elongated pedicel in mature plants)
Distribution - endemic - eastern South Id.
Locally common in grass.
Flowers - October-January - self pollinated |
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Pterostylis tristis
(drab coloured)
This is a more slender plant than tanypoda, usually brownish or reddish, and the labellar appendage
points downward.
Distribution - endemic - North Id. Hawkes Bay and
the Central Plateau: South Id. - Canterbury to Otago.
Flowers - October-January - self pollinated |
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Pterostylis foliata
(leafy)
Leaves in a semi-rosette, flower slender,
short-sepalled, erect.
Distribution - Australia - South Australia, Victoria,
New South Wales, Tasmania.
New Zealand - North and South Is.
From Mount Pirongia to Dunedin - usually in grass
or open areas in forest.
Flowers - October-December - self pollinated |
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Pterostylis nutans
(nodding - the bent-over flower)
A very distinct species, with large leaves in a basal rosette, and the ovary bent over so the flower faces downward.
Distribution - Australia - South Australia, Victoria,
New South Wales, Queensland, Tasmania.
New Zealand - 3 records to date - Kaitaia 1910:
Castor Bay (Auckland North Shore) 1942:
Waihaha (west of Taupo) 1995.
Flowers - August-October - insect pollinated |
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Pterostylis puberula
(the hairs on the flower stem)
A small plant, it has a basal rosette of trowel-shaped leaves with narrowly winged petioles, and hairs on the flower stem.
The dorsal sepal is very short and ± obtuse.
The lateral sepals have a high, rather shallow sinus with
a small inflexed lobe, and long erect caudae sometimes thickened at the tips.
Distribution - endemic - Three Kings Is. and near
Thames in the Coromandel Ranges.
At one time common on the Auckland gum clay, and
around Wellington and in the Sounds / Nelson district,
only the 2 colonies are now known.
I last saw it growing
at Silverdale, north of Auckland
in 1947.
Flowers - September - self pollinated |
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Pterostylis tasmanica
(from Tasmania)
A very distinct plant. Leaves in a semi-rosette
and scattered up the stem.
Lateral sepals deflexed.
The filiform labellum is covered with long yellow hairs
and has a dark
brown callus at the tip.
Distribution - Australia - Tasmania, Victoria.
New Zealand - Three Kings Is. North Id. from the North Cape to the Waikato, and about Wellington:
South Id. Sounds / Nelson district.
Flowers - October - self pollinated |
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