Jasminum pierreanum Gagnep., Fl. Indo-Chine [Lecomte et al.] 3: 1042 (1933a); Bull. Soc. Bot. France 80: 76 (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

7. Jasminum pierreanum Gagnep., Fl. Indo-Chine [Lecomte et al.] 3: 1042 (1933a); Bull. Soc. Bot. France 80: 76 (1933b)

≡ Jasminum rarum Kerr, Bull. Misc. Inform. Kew 28 (1938). Type: Thailand. Southwestern, Kanchanaburi, Bau Ke, Thailand, Kanchanburi Bau Ke, 21 July 1926, Put, N.211 (holotype: K000901476 (K, image!); isotypes: E00284807 (E, image!, L0005365 (L, image!, P00644299 (P, image!).

≡ Jasminum cordatulum (Merr. & Chun ex L.C.Chia) L.C.Chia, Fl. Hainan. 3: 576 (1974). Type: China. Hainan Province, 8 September 1933, Liang Xiangri 62960 (holotype: IBK IBK00191326 (IBK, image!; isotypes: IBK00191326 (IBK, image!), PE00027990 (PE, image!).

≡ Jasminum seguinii var. cordatulum Merr. & Chun ex L.C.Chia, Acta Phytotax. Sin. 2: 43 (1952). Type: China. Hainam, 26 August 1933, Liang Xiangri 62823 (holotype: IBK00093762 (IBK, image!); isotypes: IBSC0459241(IBSC, image!), PE01489419 (PE, image!, SN005501 (SN, image!).

Lectotype

(here designated):- Vietnam (Cochinchine). Prope Chiao Xhan ar originum fluvii Dongnai septentrione Prov. Bien hoa "Bois Hua", March 1877, L. Pierre 2828, P00640601 (P, image!); Isolectotypes: P00640600 (P, image!), VNM00021049 (VNM!).

Syntype.

Cambodia. monts Cherreer, June 1870, L. Pierre s.n., P00644300 (P, image!).

Nomenclatural notes.

Jasminum pierreanum was described ( Gagnepain 1933a, b) based on two gatherings (L. Pierre 2828 and L. Pierre s.n) collected from Cambodia and Vietnam. We found three duplicates matching the detailed description and specimen label information included in the protologue. A survey of literature and virtual herbaria revealed that a lectotype for J. laxiflorum has not been designated in earlier studies ( Green 2000, 2003; Ho 2000; Tran 2003). We, therefore, selected the P specimen (P00640601) as a lectotype which best matched the description, following Arts. 9.3 and 9.11 of ICN ( Turland et al. 2018). Other specimens at P and VNM (P00640600 and VNM00021049) are designated as isolectotypes.

Ecology and phenology.

Grows in the forest at high altitude 300-1000 m.a.s.l. Flowering in August - September, fruiting in January - February.

Distribution.

Cambodia, China, Thailand and Vietnam. Hoa Bình (Mai Chau), Thua Thien-Hue (Phu Loc), Gia Lai (Kbang), Dak Lak (Dak Mil), and Dong Nai (Bien Hoa) Provinces.