Papyrocactus 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 : 95

publication ID	https://doi.org/ 10.11646/phytotaxa.524.2.3
DOI	https://doi.org/10.5281/zenodo.5724145
persistent identifier	https://treatment.plazi.org/id/03CA878D-2460-6A32-DF8F-FB39FD78F93A
treatment provided by	Plazi
scientific name	Papyrocactus Doweld
status	nom. nov.

Treatment

Papyrocactus Doweld , nom. nov.

≡ Toumeya Britton & Rose , Cactaceae View in CoL 3: 91. 1922, nom.illegit.non Tuomeya W.H.Harvey View in CoL ,Nereis Bor.Amer. 3: 64. 1858 ( Rhodymeniophyta-Lemaneaceae View in CoL ).

Type— Papyrocactus papyracanthus (Engelmann) Doweld , comb. nov.

≡ Mammillaria papyracantha Engelmann View in CoL [in Gray] Mem. Amer. Acad. Arts Sci. Ser. 2, 1, Art. 1: 49. 1849.

Holotype — USA: New Mexico: between the lower hills near Santa Fé, A. Fendler # 12, 15 May 1847 ( MO 2017206 ).

Etymology: from Greek stem papyros, paper-like spines of the cactus.

In a revision of the tribe Cacteae , subtribe Sclerocactinae Doweld of the Cactaceae ( Doweld 1998, 2000), the genus Toumeya Britton & Rose (1922) was accepted as a distinct genus on the basis of the comprehensive complex of characters, including newly added seed micromorphology in particular. However, the parahomonym was known at that time, and Doweld (in litt.) submitted an official request to the General Committee of Botanical Nomenclature for the binding decision whether the pair of parahomonyms, Toumeya Britton & Rose (1922) and Tuomeya W.H. Harvey (1858) , are sufficiently alike to be confused. The Committee for Spermatophyta resolved the case and confirmed that these generic names are homonyms ( Brummitt 2004: 824), and the General Committee approved this decision ( Barrie 2006: 798). In this connection, a new replacement name for cacti is validated here in anticipation of the preparing new revision of the systematics of the tribe Cacteae .