Amarylloidinae is a now obsolete informal name for an "infrafamily" within the
Amaryllidaceae (Amaryllis) family, erected by
Hamilton Traub. This grouping was designed to fill a perceived gap between the formal
taxonomic rank of
subfamily and tribes. In his treatment of this family, he divided it first into four subfamilies. Within subfamily
Amarylloideae he then divided his sixteen tribes into two infrafamilies, Amarylloidinae (12 tribes) and
Pancratioidinae (4 tribes), both of which were subsequently demonstrated to be
polyphyletic,
[ and hence were abandoned by Rolf Dahlgren, who used no rank between family and tribe. On the other hand, he also used a much more restricted Amaryllidaceae corresponding to Traub's subfamily Amarylloideae. Thus Traub's Amarylloideae most closely resembles subfamily Amaryllidoideae sensu APGIII.
]
Of these infrafamilies, the smaller Pancratioidinae represents the Andean clade of Amaryllidoideae sensu APGIII, together with the Pancratieae from the Eurasian clade, hence the paraphyly. For a table of Traub's infrafamilies and tribes, and their subsequent disposition, see Subdivision of Amaryllidoideae.
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