Published December 23, 2019 | Version v1
Taxonomic treatment Open

Acuston petalodes Al-Shehbaz, comb. nov.

  • 1. Missouri Botanical Garden 4344 Shaw Boulevard St. Louis, Missouri 63110, USA
  • 2. Conservatoire et Jardin botaniques de la Ville de Genève Case postale 71 1292 Chambésy, Switzerland

Description

Acuston petalodes (DC.) Al-Shehbaz, comb. nov.

Alyssum petalodes DC., Syst. Nat. 2: 312. 1821.

Type: “Hab. in Syriâ. Labillardiere. (v.s. sp. in h. Labill.)”.

Holotypus: SYRIA: sine loco, 1819, Labillardi è re s.n. (G [G00371675]; iso-: G-DC [G00205585]).

Notes. – CANDOLLE (1821b: 312) indicated that he examined the material in Labillardière’s herbarium, but as shown by STAFLEU & COWAN (1979), collections of that herbarium from Syria, which were in Lemonnier’s herbarium, are currently housed in the Geneva herbaria.

A search for possible duplicates in the VIRTUAL HERBARIA (2019) and P (including P-JU and P-LA), where many of Labillardière duplicates are currently housed, did not yield anything. Therefore, the listing of the holotype in P by AL-SHEHBAZ & MABBERLEY (2017) is erroneous.

By contrast, the G00371675 specimen is from Labilladière’s herbarium with two different labels indicating Syria and Liban but no date, and it is concluded here that this is the holotype. The G-DC specimen above is a fragmentary material with a label in Candolle’s handwriting “Alyssum petaloideam. M.Labillard. 1819” but no country or locality. The conclusion is that it was taken by Candolle from the holotype and, therefore, it is an isotype.

Notes

Published as part of AL-Shehbaz, Ihsan A. & Barriera, Gabrielle, 2019, Typification of Edmond Boissier's Cruciferae (Brassicaceae) names enumerated in Flora Orientalis, pp. 1-193 in Boissiera 72 on page 86, DOI: 10.5281/zenodo.7630433

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Linked records

Additional details

Biodiversity

Collection code
G, G-DC
Material sample ID
G00371675, G00205585
Scientific name authorship
Al-Shehbaz
Kingdom
Plantae
Phylum
Tracheophyta
Order
Brassicales
Family
Brassicaceae
Genus
Acuston
Species
petalodes
Taxon rank
species
Taxonomic status
comb. nov.
Type status
holotype

References

  • CANDOLLE, A. - P. DE (1821 b). Regni vegetabilis systema naturale 2. Paris.
  • STAFLEU, F. A. & R. S. COWAN (1979). Taxonomic Literature 2. Bohn, Scheltema & Holkema.
  • VIRTUAL HERBARIA (2019). Departement of botany and biodiversity research, Universitat Wien [https: // herbarium. univie. ac. at / database / search. php].
  • AL-SHEHBAZ, I. A. & D. J. MABBERLEY (2017). What is Philip Miller's " perennial moonwort ", Lunaria perennis (Brassicaceae / Cruciferae)? Novon 25: 414 - 418.