|
Journal Number 113
August 2009
ELEMENTARY ED HATCH
Thelymitra 2
Drawings by Bruce Irwin
Thelymitra x dentata
(the toothed margins of the secondary column lobes)
A natural hybrid between T longifolia and T pulchella.
Flowers pink to blue, heavily striped.
Midlobe of the column-wings tuberculate, red with yellow margins.
Lateral lobes with toothed margins and tufts of yellow-brown cilia.
Distribution - Endemic - North and South Is.
Flowers - November - December - self pollinated. |
|
|
| |
|
|
Thelymitra hatchii
(for ED Hatch)
Flowers bright-blue, shading to mauve.
Column brownish, paling towards the top.
Midlobe hardly hooded, pinkish-yellow, with a minutely toothed,
truncate margin.
Lateral lobes with coarse, bright-yellow cilia.
Distribution - Endemic - North Is from the Central Plateau southwards;
South Is.
Flowers - November - December - self pollinated. |
|
|
| |
|
|
Thelymitra formosa
(beautiful)
Flowers blue-purple.
Column pale with a broad pinkish band near the top.
Midlobe bright-red, irregularly toothed along the upper margin.
Lateral lobes red with coarse yellow cilia
Distribution - Endemic - North Is, South Is, Chatham Is.
Flowers - November - January - self pollinated. |
|
|
| |
|
|
Thelymitra aff "ixioides"
(the Australian Thelymitra ixioides is insect pollinated)
Flowers blue, the petals spotted or plain
(both flower-forms often occurring in the same colony).
Column pale-blue, with a transverse violet band near the top.
Midlobe not hooded, the upper margin bright-yellow or red,
and studded with tall calli.
Lateral lobes with thin tufts of white or mauve cilia.
Distribution - Endemic - North and South Is.
Flowers - October - December - self pollinated. |
|
|
| |
|
|
| |
|
|
These are original outline descriptions from the late Dan Hatch.
To update readers on recent developments...
- T. x dentata is a sterile back-cross so its mode of pollination is irrelevant.
- T. formosa normally has an orange/brown post anther lobe, bright red only rarely.
- Species 6, 7 & 8 open widely on hot sunny days for chance cross pollination,
but resort
to
fall-back self pollination
as a survival measure
- Ed.
|