Vegetative characters of Martinella Baill A, B young individuals of M. obovata and M. insculpta bearing unifoliolate leaves C branch of M. obovata D discolor leaflets of M. insculpta E interpetiolar ridge of M. obovata F trifid tendril of M. insculpta G abaxial side of leaflets of M. insculpta with patelliform glandular trichomes H interpetiolar region of M. insculpta with patelliform glandular trichomes being visited by ants. Photos taken by E.Y. Kataoka, except from photo D taken by R. Foster.