Delphinium zanlanscianense W.G.Zhang & X.Y.Luo, 2023

Luo, Xiao-Yu, Nie, Tang-Jie, Liu, Heng, Ding, Xue-Fei, Huang, Ying, Guo, Chun-Ce & Zhang, Wen-Gen, 2023, Karyotype and genome size variation in Delphinium subg. Anthriscifolium (Ranunculaceae), PhytoKeys 234, pp. 145-165 : 145

3. Delphinium zanlanscianense W.G.Zhang & X.Y.Luo nom. nov.

Delphinium cerefolium majus ≡ Delphinium anthriscifolium var. majus Pamp. in Nuovo Giorn. Bot. Ital., n.s., 20: 288. 1915.

Delphinium anthriscifolium latilobulatum = D. anthriscifolium f. latilobulatum W.T.Wang in Acta Bot. Sin., 10: 279. 1962., syn. nov. Type: China: Hunan, Xue-Feng-Shan, 1954, Z. T. Li 2371 (Holotype PE!; Isotype PE!).

Type material.

Lecotype: China: Hubei (Hu-peh), Zhanglang County (Zan-lan-scian), 1913, P. C. Silvestri no. 3917 (Holotype FI!).

Note.

Morphologically, D. anthriscifolium var. majus differs from D. anthriscifolium var. anthriscifolium in that the flowers are 2.3-3.4 cm long (vs. 1.0-1.8 cm), spur 1.7-2.2 cm (vs. 0.5-2.2 cm) and its base 3.0-4.0 mm (vs. 1.5-4.0 mm) in diam., other sepals 1.2-1.6 cm (vs. 0.6-1.6 cm), staminode limb broadly ovate (vs. dolabriform or ovate). Cytologically, D. anthriscifolium var. majus differs from D. anthriscifolium var. anthriscifolium in that its karyotype formula is 2n = 2x = 16 = 2m + 6sm + 8st (vs. 2n = 4x = 32 = 4m + 16sm + 12st).

When elevating D. anthriscifolium var. majus to the rank of species, the name is already occupied by D. majus (W.T.Wang) W.T.Wang ( Wang and Hsiao 1965), making it necessary to propose a replacement name. Thus, we propose the name ' Delphinium zanlanscianense ' based on the locality of its lectotype.