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 .