Dialioideae

The subfamily Dialioideae is one of the subdivisions of the plant family Fabaceae (legumes). This subfamily includes many tropical trees and shrubs. The subfamily consists of 17 genera, which are widespread throughout the tropics. It has the following clade-based definition:

The most inclusive crown clade containing Poeppigia procera C.Presland Dialium guianense (Aubl.) Sandwith, but not Cercis canadensis L., Duparquetia orchidacea Baill., or Bobgunnia fistuloides (Harms) J. H. Kirkbr. & Wiersema^[1]

Dialioideae
Dialium schlechteri Harms
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Fabales
Family:	Fabaceae
Subfamily:	Dialioideae Legume Phylogeny Working Group[1]
Type genus
Dialium L.
Genera
See text
Synonyms
Dialiinae H.S.Irwin & Barneby 1981 Dialiinae Clade[2] Labicheinae H.S.Irwin & Barneby 1981

Members of the family also share the following morphological characteristics: the presence of cymose inflorescences, the absence of vestured pits in the xylem, and a high degree of organ loss.^[2][3]

Taxonomy

Dialioideae comprises the following genera:^[1]

• Androcalymma Dwyer
• Apuleia Mart.
• Baudouinia Baill.
• Dialium L.
• Dicorynia Benth.
• Distemonanthus Benth.
• Eligmocarpus Capuron
• Kalappia Kosterm.
• Koompassia Maingay ex Benth.
• Labichea Gaudich. ex DC.
• Martiodendron Gleason
• Mendoravia Capuron
• Petalostylis R.Br.
• Poeppigia C.Presl
• Storckiella Seem
• Uittienia Steenis
• Zenia Chun

Phylogenetics

Dialioideae exhibits the following phylogenetic relationships:^[4] (compare ^[2][5][6][7])

Fabales	outgroup Dialioideae Poeppigia Eligmocarpus Baudouinia Uittienia Zenia Distemonanthus Apuleia Koompassia Martiodendron Mendoravia Storckiella Kalappia Petalostylis Labichea Dialium (including Dicorynia and Androcalymma)