Hi Aaron. This might be D. punctata. According to the new Field Guide to Orchids of the Southern Tablelands, D. dendrobioides has no yellow markings on the labellum callus. These are clearly yellow.
Interesting observation here.. I think the midlobe of the labellum of this particular flower with the yellow callus isn't as broad as a typical punctata, and the edges look quite wrinkly to me, which makes me wonder if it's a hybrid between punctata and dendrobioides. Just my 2 cents worth.
D. punctata and D. dendrobioides are thought to hybridise, so it wouldn't be impossible if they both occur together. I also agree these look like punctata, although image 5 could be dendrobioides as it seems to lack the yellow.
Just doing some digging and it appears that in general dendrobioides has a white callus and punctata a yellow one, but I think dendrobioides can have some yellow on the callus. Taking away the callus colour, these again seem to me to fit dendrobioides because of the wedge shaped and less broad, round labellum and the relatively slender lateral sepals, plus the somewhat blotched rather than uniform colour. Again thinking dendrobioides but agree some of these do look like they have some punctata features
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