Thismia ornata can be found at several locations around the city of Kuching in southwestern Sarawak/Malaysia on the island of Borneo. It has been frequently misidentified as Thismia aseroe, until Dancak et al. (2020) described it as a new species. It superficially resemble T. aseroe, but in comparing the old but precise description of T. aseroe in Groom (1895) with the descrition of T. ornata, the differences become obvious (e.g. coloration pink vs. orange-yellow, details in filaments and connectives, length of the tepals). Dancak et al. (2020) see T. ornata rather close to T. filiformis, together with T. aseroe in Thismia subsect. Odoardoa (six equal tepals, no mitre), but the larger diameter of the flower due to the much longer tepal appendages, an orange reticulate pattern on the inner surface of the floral tube, and the shape of connective appandages are distinct features for T. ornata.
The confusion between T. aseroe and T. ornata must also been taken into account, since it got entry in the extensive studies on Dioscoreales by Caddick et al. (2000, 2002).
Thismia ornata Dancak, Hrones & Sochor
Taxonomic name:
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