Query: Monotypic Commelinales genera
Relevant documents:
Weldenia
Hydrothrix
Streptolirion
Sauvallea
Schiekia
Gibasoides
Siderasis
Aetheolirion
Barberetta
Blancoa
Tapheocarpa
Elasis
Pyrrorhiza
Lachnanthes
Matudanthus
Triceratella
Philydrum
Anthericopsis