Juglandoideae is a subfamily of the walnut family Juglandaceae.
This clade was first described by Koidzumi in 1937 by the name "Drupoideae," based on the drupe-like fruits of Juglans and Carya. This name was rejected because it was not based on the name of the type genus. Leroy (1955) and Melchior (1964) both published descriptions of the clade using the name "Jugandoideae," but both were deemed invalid due to technicalities. The first valid publication of the name was by Manning (1978). Subfamily Juglandoideae Tribe Caryeae Carya – hickory and pecan Annamocarya Platycarya Tribe Juglandeae Cyclocarya – wheel wingnut Juglans – walnut Pterocarya – wingnut
Manos and Stone (2001) proposed the following reorganization to reflect a more probable phylogenetic relationship that shows that Platycarya is sister to the rest of the subfamily, while Manchester (1987) addressed the fossil record of the subfamily:
Subfamily Juglandoideae Tribe Platycaryeae †Hooleya †Palaeoplatycarya Platycarya †Platycarypollenites †Pterocaryopsis †Vinea Tribe Juglandeae Subtribe Caryinae Annamocarya Carya – hickory and pecan †Caryapollenites †Eucaryoxylon †Juglandicarya Subtribe Juglandinae Cyclocarya – wheel wingnut Juglans – walnut Pterocarya – wingnut †Pterocaryoxylon Tribe Incertae sedis †Boreocarya †Cruciptera †Globocarya †Polyptera
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