Corybas sulcatus in bud (vii)

Description:

Corybas sulcatus (Grooved helmet-orchid) is one of two endemic orchids which occur on Macquarie Island. The other being Corybas dienemus. Both species are listed as threatened. This photo was taken of the first flowering of this species at the RTBG, after two plants were collected on Macquarie Island by RTBG Horticultural Botanist, Ms Natalie Tapson, in the summer of 2017. It shows the flower continuing to unfurl, thirteen days after the first photo. Lateral sepals still uncurling and one petal now apparent.