Sommera mesochora Standl., 1914 species accepted

Sommera sabiceoides K.Schum. species accepted

Sommera lanceolata K.Krause species synonym

Sommera parva Lorence species accepted

Sommera arborescens Schltdl. species accepted

Sommera zygocalyx L.O.Williams species synonym

Sommera montana L.O.Williams species accepted

Sommera guatemalensis Standl. species accepted

Sommera donnell-smithii Standl. species accepted

Sommera dunlapii L.O.Williams species synonym

Sommera rivularis L.O.Williams species synonym

Sommera mesochroa Standl. species synonym

Sommera purdiei Standl. species accepted

Sommera grandis (Bartl. ex DC.) Standl. species accepted

Petesia minor Griseb. species synonym

Petesia grandis Bartl. ex DC. species synonym

Sommera subcordata Standl. species synonym

Sommera fusca Oerst. ex Standl. species accepted

Sommera chiapensis Brandegee species accepted

Sommera acuminata Oerst., 1927 species accepted

Petesia grandis Bartl. species homotypic synonym

Sommera fusca Oerst., 1927 species doubtful

Sommera grandis Griseb., 1861 species doubtful

Sommera cusucoana Lorence, D.Kelly & A.Dietzsch species accepted

Sommera smithii Donn.Sm. & Standl. species doubtful