Verbascum longirostre (Murb.) Hub.-Mor. in Bauhinia 5(1): 13. 1973.

Khamar, Hamid, Oualidi, Jalal El, Touhami, Amina Ouazzani & Civeyrel, Laure, 2023, Nomenclature and typification in Verbascum (Scrophulariaceae) from North Africa, PhytoKeys 225, pp. 115-152 : 115

Verbascum longirostre (Murb.) Hub.-Mor. in Bauhinia 5(1): 13. 1973.

Celsia longirostris ≡ Celsia longirostris Murb., in Lunds Univ. Arsskrift, 2 n.f, 22(1): 190. 1925. Type: [Morocco]. Oudjan, Sud-Ouest du Maroc. 1875, A. S. Mardochée, s.n. (lectotype, designated here: P [P03425558]!, isolectotype: P [P03425557]!, K [K000410860, K000410861]!). [Morocco]. Chtouka, Sud-ouest du Maroc, 1875, A. S. Mardochée, s.n. (residual syntype: P [P03425553, P03425563]!). [Morocco]. Ida ouchemlal, Sud-ouest du Maroc, 1875, A. S. Mardochée, s.n. (residual syntype: P [P03425555, P03425559]!). [Morocco]. Districts de Tazeroualt et Issghivar jusqu’au Si Ahmed ou Moussa 1876, A. S. Mardochée, s.n (residual syntype: P [P03425560]!). [Morocco]. Tamelat, Sud-ouest du Maroc, 1875, A. S. Mardochée, s.n (residual syntype: P [P03425565]!). [image of lectotype available at https://science.mnhn.fr/institution/mnhn/collection/p/item/p0342555)] (1)

Celsia maroccana = Celsia maroccana Coss. (in sched) non Ball.

Notes.

Murbeck (1925) described this species based on a collection made by A.S. Mardochée, a Moroccan plant specimen collector on account of French botanist Ernest Cosson. In the protologue, Murbeck (1925) cited several collections from south-west of Morocco as original material that are stored at Cosson’s herbarium. The date and collection localities indicated in the protologue are: "Sud-Ouest du Maroc: Chtouka, Ida ouchemlal, Oudjan, Tamelat, 1875, Mardochée; Districts de Tazeroualt et Issghivar jusqu’au Si Ahmed ou Moussa, 1876, Mardochée; Ida Oubouzia, Takoust et Aït zelten, pays montagneux 1876, Mardochée». According to Stafleu and Cowan (1976-1988), the main collections of Cosson are preserved at Herb. P. During our searches we have traced ten specimens collected by Mardochée housed at Herb. P (P03425553, P03425555, P03425557, P03425558, P03425559, P03425560, P03425563, P03425565) and two at Herb. K (K000410860, K000410861). Detailed examination of all of them revealed that the plants and the information on the labels of the samples match well with the protologue description. Since no holotype is indicated in the protologue the ten specimens traced are all syntypes according to Art. 9.6 of the ICN ( Turland et al. 2018). Therefore, we select here as the lectotype the sheet P03425558 because it is more complete and agrees best with the original description. This specimen bears two handwritten labels, one by Cosson: " Celsia maroccana Coss. sp. nov.! Oudjan, Sud-Ouest du Maroc. Mardochée 1875 " and the other bears a 1924 annotation by Murbeck who correctly identified it as C. longirostris Murb.

Moreover, as mentioned by Murbeck (1925), Cosson (in sched.) have described this plant in question as a new species beneath the name " Ceslia maroccana " accompanied by a handwritten diagnosis written by him on 24 August 1876. However, rendering to Murbeck (1925), Cosson has misinterpreted the plant in question as a new species because at the time mentioned he did not seem to have known that a related species was published a year earlier by Ball (1875: 172) under the name of Celsia maroccana .