The "Black Tip" Pollination mechanism resets after (accidental) touching. Growing in small groups of 2-5 Floral stems. Each flloret is about 1-2 cm in diameter.
Hm. Perhaps this specimen is a Swan Greenhood but not longer in flower? All those hymenochilus specimen I checked that still flowered in the little patch where MAX took the above 2 photos had a black labellum tip shaped like a M see my comment in sighting mentioned above. I could upload more photos of another specimen if that would be of any help....
Perhaps it is, but I am still suspicious that the top part of the appendage is obscured. The "T" in cycnocephalus is generally lighter and less robust than this. Perhaps I am overthinking this all and we should defer to Tobias's judgement.
In doubt maybe just H. sp?
I looked at the sightings of H cycnocephalus and found that the featuring specimen Hymenochilus cycnocephalus (Swan greenhood) had a labellum tip that looked more like those I saw - all very confusing ...