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

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

≡ 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.