Paranyssa Doweld, 2021

Doweld, Alexander B., 2021, Fossil Alloceltidoxylon, Allonymphaea, Arecocaryon, Paralnoxylon and Paranyssa and extant Komaroviopsis, Marcanodendron, and Papyrocactus (Magnoliophyta), new replacement generic names, Phytotaxa 524 (2), pp. 92-98 : 94

Paranyssa Doweld , nom. nov.

≡ Browniea Manchester et Hickey, Int. J. Pl. Sci. 168: 231. 2007, nom. illeg. non Brownea Jacquin, Enum. Syst. Pl. : 6, 26. 1760 (‘ Brownaea ’), nom. et orth. cons. ( Fabaceae ).

IFPNI registration LSID: F7CCA979-CCC5-2040-9B44-5E6F3AEA90C5.

Type— Paranyssa serrata (Newberry) Doweld , comb. nov.

≡ Alnus serrata Newberry, Ann. Lyceum Nat. Hist. New York 9(Art. 1): 55. 1868

Holotype — USA: Montana, Tongue River [erroneously? Banks of Yellowstone river, Montana] (USNM 7003 [counterpart of same specimen YPM 11586], National Museum of Natural History, Smithsonian Institution, Washington, USA).

IFPNI registration LSID: E758A322-7B7F-3E76-D2F4-3A1C4E4DDB 8F.

Stratigraphy: Palaeocene.

Etymology: by superficial likeness to the leaves of extant Nyssa L. (1753: 1058).

The distinctive fossil foliage of the Palaeocene sediments of North America named initially as Alnus serrata Newberry (1868) was revised and formed a distinct fossil-genus Browniea Manchester & Hickey (2007). However, the fossil generic name is preoccupied by the generic name of well-known extant plant, Brownea Jacquin (1760) of Fabaceae , conserved with that spelling. In this connection, a new generic name, Paranyssa gen. nov., is proposed in place of Browniea Manchester et Hickey.