Puchiumazus lanceifolius (Hemsl.) Bo Li, D.G. Zhang & C.L. Xiang, 2021

Xiang, Chun-Lei, Pan, Hong-Li, Min, Dao-Zhang, Zhang, Dai-Gui, Zhao, Fei, Liu, Bing & Li, Bo, 2021, Rediscovery of Mazus lanceifolius reveals a new genus and a new species in Mazaceae, PhytoKeys 171, pp. 1-24 : 1

Puchiumazus lanceifolius (Hemsl.) Bo Li, D.G. Zhang & C.L. Xiang comb. nov. Fig. 1

Mazus lanceifolius Hemsl., in: J. Linn. Soc., Bot. 26(174): 181. 1890. Lectotype (designated here): China. Hubei province (Hupeh): Jianshi (Chienchih), March 1889, A. Henry 5837 (K barcode K001079356 [photo!]). Basionym.

Phenology.

Flowering and fruiting from March to July.

Common name

(assigned here). Bu Qiu Cao (补求草; Chinese name).

Additional specimens examined.

China. Sichuan Province (Szechuen): South Wushan, March 1889, A. Henry 7250 (K barcode K001079357 [photo!]); Duajiangyan City, Qingchengshan Mountain, under evergreen broad-leaf forest, 1200 m elev., 3 June 2020, X.X. Zhou et al. LB1067; Mianyang City, Dayi County, Qianfoshan Mountain, 850 m elev., 8 June 2020, X.X. Zhou et al. LB1067-2.

Note.

In the protologue of Mazus lanceifolius , two collections from Sichuan (A. Henry 7250) and Hubei (A. Henry 5837), China, respectively, were simultaneously listed without exact type designation because that was not the practice in the 19th century. After checking all floras and literature dealing with Mazus in China, we are certain that M. lanceifolius has not been lectotypified before. Thus, we here propose the specimen A. Henry 5837 (Kew barcode: K001079356) as lectotype of M. lanceifolius (Fig. 1A ) in accordance with article 9.3 of the International Code of Nomenclature for Algae, Fungi, and Plants (Shenzhen Code) ( Turland et al. 2018).

Figures

Figure 1. Puchiumazus lanceifolius (≡ Mazus lanceifolius) A lectotype deposited at K (A. Henry 5837, barcode K 001079356) B habit C stem, showing the obtuse ribs D leaves E inflorescence F flower in lateral review G young fruits. Scale bars: 5 cm (B); 0.5 cm (C, F, G); 2 cm (D); 1 cm (E).