Hymenochilus bicolor
2 Black-tip Greenhood at Watson, ACT
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| Hymenochilus bicolor | MattM | 29 Oct 2020 | |
| Hymenochilus bicolor | waltraud | 25 Oct 2020 |
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User's notes
I uploaded on behalf of Max P.
10 comments
26 Oct 2020
Hi orchid nerds
I uploaded this sighting on behalf of Max and suggested H bicolour
MAX uploaded the same pics (there was a crossover) Hymenochilus cycnocephalus (Swan greenhood) and Matt suggested H. cynocephalus
2 issues
1. MAX seems to have a problem with embedded data such as showing the coordinates which is puzzling because when I uploaded his photos on CNM, the correct data and coordinates came up.
2. We are keen to know the species. If I have the opportunity I'll take more photos of the orchids; according to MAX there are > 30 in a small patch. To ensure that I catch the distinguishing features of the two Hymenochilus species, which part of the plants are important to be in focus?
I uploaded this sighting on behalf of Max and suggested H bicolour
MAX uploaded the same pics (there was a crossover) Hymenochilus cycnocephalus (Swan greenhood) and Matt suggested H. cynocephalus
2 issues
1. MAX seems to have a problem with embedded data such as showing the coordinates which is puzzling because when I uploaded his photos on CNM, the correct data and coordinates came up.
2. We are keen to know the species. If I have the opportunity I'll take more photos of the orchids; according to MAX there are > 30 in a small patch. To ensure that I catch the distinguishing features of the two Hymenochilus species, which part of the plants are important to be in focus?
26 Oct 2020
If you could please focus on the "black tip" on the labellum. One species will have a black/green "T" shape and the other will have a black/green square or "M". You may need to get down on the ground to get the shots.
EDIT: both species have been observed to co-occur on Majura.
26 Oct 2020
How Interesting, such small apparent differences. My Q.? Is, with all due respect... is this difference in "species" or perhaps localised varieties, Actually backed up by more Solid GENETIC differences Evidence, rather than the more subjective morphological /anatomical differences ? Has anyone done an Actual Genetic Evidence study / research on this ? Thanks for your consideration.
27 Oct 2020
That might be a question for Tobias as it is relevant to his PHD. From my observations I would put H. bicolor and cycnocephalus as different species. When observed up close, the labellum appendages do appear very different and the shape of the lateral sepals looks slightly different.
We have a rare beard orchid in Canberra called Calochilus montanus. On PlantNET you will find it is one of three synonyms of the common and widespread C. campestris. There is certainly more work to be done on orchid genetics.
We have a rare beard orchid in Canberra called Calochilus montanus. On PlantNET you will find it is one of three synonyms of the common and widespread C. campestris. There is certainly more work to be done on orchid genetics.
28 Oct 2020
I propose H bicolor; I took photos of H specimen in the same small patch today and found the black labella appendages m-shaped in all H specimen that I investigated and that still flowered.
See Hymenochilus bicolor (Black-tip Greenhood)
See Hymenochilus bicolor (Black-tip Greenhood)
28 Oct 2020
Good One Waltraud, Great that there were still some blooms open / available to photograph 🙂
29 Oct 2020
Ok. The top part of the appendage must be obscured by the hood in these photos thus resulting in a "T" shape being visible.
Location information
- Maps The Fair, Watson
- Places Watson, ACT
Sighting information
- 16 - 100 Abundance
- waltraud Recorded by
- 10cm to 30cm Plant height
- Yes In flower
Collections
- waltraud Canberra & Southern Tablelands NatureMapr Hymenochilus bicolor (ACT) = Pterostylis bicolor (NSW) Orchids Plants
Species information
- Hymenochilus bicolor Scientific name
- Black-tip Greenhood Common name
- Sensitive
- Local native
- Non-invasive or negligible
- Up to 827.8m Recorded at altitude
- External link More information
-
Synonyms
Pterostylis bicolor
Seasonal activity
-
In flower
JFMAMJJASOND
Record quality
Quality score
6 / 7
- Images or audio
- More than one media file
- Verified by an expert moderator
- Nearby sighting(s) of same species
- Description
- Additional attributes
- GPS evidence of location