Table 1: Summary of comparisons of floral traits, distribution, and pollinators among closely related species pairs in Ophrys and Chiloglottis. Data on floral labellum, flowering time, and altitude range distribution are presented as mean (± standard deviation). Data on distribution, floral scent, and pollinators are presented as mean value.

GenusNumber of species-pairs comparedOverlap in labellum length ( )
[33, 38]
Overlap in flowering time ( )
[33, 38]
Overlap in habitat: Altitude ( )
[33, 38]
Overlap in habitat: Area ( )
[33, 38]
Overlap in floral scent ( )
[22]
Overlap in pollinators ( )
[34]

Ophrys21342.6 59.0 83.0 53N/A2
Chiloglottis3842.9 47.4 35.1 7456