Piper leptostachyum Wall. ex Miq. Syst. Piperac.

Mukherjee, Prasanta Kumar, 2018, Nomenclatural notes on Piper Linn. (Piperaceae) from India II, Phytotaxa 338 (1), pp. 17-32 : 23

publication ID	https://doi.org/10.11646/phytotaxa.338.1.2
persistent identifier	https://treatment.plazi.org/id/4012878C-FF84-746F-6DF2-839CFF78FC52
treatment provided by	Felipe
scientific name	Piper leptostachyum Wall. ex Miq. Syst. Piperac.
status

Treatment

11. Piper leptostachyum Wall. ex Miq. Syst. Piperac. View in CoL 1: 315. 1844, non Willd. ex Kunth Linnaea View in CoL 13(6): 604. 1840 pro. syn. nom . invalid.

Type:— MYANMAR: Burma: Attran River, Wallich 6649, ( holotype G-DC ( G 00206817 image!).

Homotypic synonym:— Piper indicum C.DC.Prodr. 16:362.1869 non Garsault Fig.Pl. Med.3: t. 459.1764 (1764:t. 459), nom . invalid opus utique oppressum.

Distribution:— INDIA: Arunachal Pradesh, Tripura; MYANMAR.

Note:— Piper leptostachyum Miq. was described with the types Wallich 1540 and 6649. The name, incidentally, has an earlier homonym of P. leptostachyum Willdenow ex Kunth (1840) , which was cited as a synonym of P. tenue Kunth (1816: 56) . Hence, Kunth’s name is invalid and P. leptostachyum Wall. ex Miq. is legitimate. Casimir de Candolle (1869) used the name P. indicum C. DC. , citing the Miquel’s name and reference, along with both Wallich specimens in “herb. Wall. et G-DC”. However, de Candolle’s name is a homonym of P. indicum Garsault (1764: 459) , which was published in a suppressed work and is invalid according to Art. 34.1 ( McNeill et al.,2012). J. D. Hooker ( loc. cit.) opined that the mention of Wallich 1540 as one of the types by Miquel was an error. Hooker also clarified other matters of nomenclature, the latter with a question mark, and thus lectotypification became necessary.

This species has female spikes much longer than the leaves, with distantly placed flowers/fruits, and decurrent bracts. An extension of distribution of the species to India is recorded here based on the specimens cited below.

Additional specimens examined: INDIA: Arunachal Pradesh: Pungchow, Tirap FD, D. B. Deb 26597 (CAL); Paya to Shoeliang, Lohit FD, R. S. Rao 10855 (CAL); Tripura: Phuldungsai-Anada Bazar, 2000ft., D. B. Deb 27337 (CAL).