raw reads of Burmanniaceae and Tacca genus
Campylosiphon (Burmanniaceae), a genus with two fully mycoheterotrophic species distributed in the tropics of South America and West Africa, is extended to include two Asian species and one African species with “wingless” flowers. Specifically, Burmannia championii and B. densiflora were transferred to Campylosiphon, and a Campylosiphon species new to science was described from Guizhou, China, supported by a combination of morphological comparison and molecular phylogenetic inference. We revealed that the genus Campylosiphon can be characterized by five morphological aspects. With the revised circumscription, Campylosiphon becomes the third genus in Burmanniaceae with a pantropical distribution pattern. We also reported that two Campylosiphon species have advanced degraded plastomes losing all protein coding genes for photosynthesis.