Jasminum laxiflorum Gagnep., Fl. Indo-Chine [Lecomte et al.] 3: 1055 (1933a); Bull. Soc. Bot. France 80: 75 (1933b)

Quang, Bui Hong, Choudhary, Ritesh Kumar & Lee, Joongku, 2021, Nomenclatural notes and typification of nine names related to Jasminum (Oleaceae), PhytoKeys 183, pp. 55-65 : 55

6. Jasminum laxiflorum Gagnep., Fl. Indo-Chine [Lecomte et al.] 3: 1055 (1933a); Bull. Soc. Bot. France 80: 75 (1933b)

Lectotype

(here designated):- Vietnam. Austro-Cochinchine, Tanh-huyen, Thu-duc, Baria, Bien-hoa (Dong Nai Province), 01 December 1868, L. Pierre 327, P03868745 (P, image!); Isolectotypes: A00105308, A00105309, A00105310, A00105313 (A, images!); BM000997658 (BM, image!); P03868746, P03868747, P03868750 (P, images!).

Syntypes.

Vietnam. C. Thorel 862, A00105593 (A, image!); P03868756, P03868755 (P, images!); S09-37061 (S, image!); Phu-mi, 1875 Godefroy s.n. P03868749 (P, image!); 26 January 1903, Phu-mi, D.G.J.M. Bois 2180, A00105307 (A, image!); Phu-mi, P03868743 (P, image!); Bien-hoa à Xuan-loc (Dong Nai Province), 12 January 1914, A. Chevalier 29979, P03868744 (P, image!); Nui dinh pro de Baria (Ba Ria-Vung Tau Province), 100 m, 27 October 1919, E. Poilane 671, A00105311 (A, image!), P03868753, (P, image!); environs de Saigon (Ho Chi Minh city), 28 January 1926, F. Evrard 2618, coll. Khai 161, P03868742 (P, image!); km. 80.500 de la route col. N°20 pro: du Haut Donaï délégation de Djyrinh (Dinh Linh, Lam Dong Province), 19 October 1931, E. Poilane 19787, P03868752 (P, image!); A00105312, (A, image!).

Nomenclatural notes.

Jasminum laxiflorum was described ( Gagnepain 1933a, b) based on seven gatherings (E. Poilane 19787, F. Evrard 2618, coll. Khai 161, C. Thorel 862, L. Pierre 327, A. Chevalier 29979, and Godefroy s.n) collected from South Vietnam. None of them was designated as a holotype. We found nine specimens matching the original description and information given on the labels which are included in the protologue, and several duplicates. A survey of the literature ( Ho 2000; Tran 2003) and multiple herbaria revealed that a lectotype for J. laxiflorum has not yet been designated. Therefore, L. Pierre 327, the specimen P03868745 at P, which best represents the species, is designated here as a lectotype following Arts. 9.3 and 9.11 of ICN ( Turland et al. 2018). Other specimens at A, P, and BM (A: A00105308, A00105309, A00105310, A00105313; BM: BM000997658; P: P03868746, P03868747, P03868750) are designated here as isolectotypes.

Ecology and phenology.

Grows in the forest at 100-500 m.a.s.l. Flowering in February -March, fruiting April - May.

Distribution.

Vietnam. Endemic to Dak Lak (Dak Mil), Kon Tum (Chu Mon Ray National Park), Lam Dong (Di Linh), Dong Nai (Bien Hoa, Trang Bom) Ba Ria-Vung Tau (Ba Ria nui dinh), and Ho Chi Minh City (Thu Duc) Provinces.