Alexa imperatricis Baker, 1888 species doubtful

Alexa farinosa species accepted

Alexandra imperatricis R.H.Schomb. species synonym

Alexa cowanii Yakovlev species accepted

Alexa canaracunensis Pittier species accepted

Alexa herminiana N.Ramírez species accepted

Alexa confusa Pittier species accepted

Alexa superba Cowan species synonym

Alexa bauhiniiflora Ducke species accepted

Alexa leiopetala Sandwith species accepted

Alexa imperatricis (R.H.Schomb.) Baill. species accepted

Alexa imperatricis var. glabra Yakovlev variety synonym

Alexa surinamensis Yakovlev species accepted

Alexa grandiflora Ducke species accepted

Alexa wachenheimii Benoist species accepted