Dotted Sun Orchid at Gundaroo, NSW
Identification history
| Thelymitra juncifolia | 22 Nov 2022 | DerekC | ||
| Thelymitra juncifolia | 13 Nov 2022 | DerekC | ||
| Thelymitra ixioides | 11 Nov 2022 | MaartjeSevenster |
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User's notes
I had more convincing photos of the column but accidentally deleted them. However, the flowers were all very intense mauve blue, buds per plant ranged from 2 to 7 and the stems were 40-60cm tall. This all seems to point to ixioides? The obvious T.juncifolia in the same region are all much smaller, lighter blue and with far fewer flowers per plant...
5 comments
DerekC
wrote:
13 Nov 2022
The first impression suggests these are T. juncifolia. Both are similar but T. ixioides flower is larger 40 mm with the postanther lobe having 2-4 rows short dark finger-like glands at the apex, and the column arms having dense hair-tufts. T. juncifolia flowers on the other hand are 35 mm, larger spots and the post-anther lobe with fewer, longer glands, in a crowded band. The column arms with sparse hair-tufts.
Both columns have auxiliary lobes which are the two yellowish tips touching between the glands on the apex and the hair-tufts. In T. ixioides these are often prominent and bright yellow, where in T. juncifolia less prominent duller orange-yellow as is seen here.
Do you know the flower size?
Considering the apparent larger spots, the presentation and number of glands (& rows), sparse hair-tufts and the auxiliary lobes, I think these are T. juncifolia.
Both columns have auxiliary lobes which are the two yellowish tips touching between the glands on the apex and the hair-tufts. In T. ixioides these are often prominent and bright yellow, where in T. juncifolia less prominent duller orange-yellow as is seen here.
Do you know the flower size?
Considering the apparent larger spots, the presentation and number of glands (& rows), sparse hair-tufts and the auxiliary lobes, I think these are T. juncifolia.
MaartjeSevenster
wrote:
13 Nov 2022
Yes, I agree that the flowers seem much like juncifolia with exception of the colour. I was going with the other characteristics as described in Orchids of the Southern Tablelands, triggered by the huge difference this group seemed to have from other T.juncifolia in the area, but those may not be decisive. Flowers are relatively small, max 20mm I think, but all T. flowers seem on the small side this year, if opening at all...
Tapirlord
wrote:
13 Nov 2022
For what it is worth I agree with you Derek, I would call that T.juncifolia.
TobiasHayashi
wrote:
26 Nov 2022
I agree, this looks like T juncifolia for the reasons Derek has described
Location information
- Maps MTR591 at Gundaroo
- Places Gundaroo, NSW
Sighting information
- 20 Abundance
- 9 Nov 2022 12:01 PM Recorded on
- MaartjeSevenster Recorded by
Additional information
- 30cm to 1 metre Plant height
- True In flower
Species information
- Thelymitra juncifolia Scientific name
- Dotted Sun Orchid Common name
- Sensitive
- Local native
- Non-Invasive
- Machine learning
-
In flower
- External link More information
Record quality
- Images or audio
- More than one media file
- Confirmed by an expert moderator
- Nearby sighting(s) of same species
- GPS evidence of location
- Description
- Additional attributes
