Piper obtusistgmum C. DC. Candollea

Mukherjee, Prasanta Kumar, 2020, Nomenclatural notes on Piper (Piperaceae) from India III, Phytotaxa 441 (3), pp. 263-273 : 268

publication ID	https://doi.org/ 10.11646/phytotaxa.441.3.3
persistent identifier	https://treatment.plazi.org/id/039587D3-281A-FF80-FF52-E634FEEBE4A5
treatment provided by	Felipe
scientific name	Piper obtusistgmum C. DC. Candollea
status

Treatment

7. Piper obtusistgmum C. DC. Candollea 1: 217 et 2: 211. 1925.

Type:— INDIA: Tamilnadu, (holotype Nilgheries, Ooty 7500 ft. Collector unknown ( Clarke ?) 11208C, CAL (.379589!); isotype G-DC – a penciled sketch of the leaf only

Piper argyrophyllum View in CoL var. 4. Hook. f. Fl. Brit. India 5: 94. 1886 nomen invalid, pro parte, excl. syntypus syn. nov.

Type:— INDIA: (lectotype designated here Tamilnadu, Nilghiri 7000 ft C. B. Clarke ( CAL 379589!)

Distribution:— INDIA: Tamilnadu

Note:— Hooker cited two specimens for his var.4 of P. argyrophyllum : Nilghiri Hills, alt. 7000 ft., Clarke and Ceylon, C. P. 3625. The specimen collected by C. B. Clarke has his collection number 11208C and the one deposited at CAL has the identification by J. S. Gamble as P. argyrophyllum var. 4. Clarke’s specimen also happens to be the holotype of P. obtusistgmum . As Hooker’s name is invalid, P. obtusistgmum is accepted as the correct name. The other syntype C.P. 3625 has been placed under P. sylvestre by Huber (1997: 282). The specimen matches well the description given by Hooker (1886).

Leaves are coriaceous, elliptic lanceolate, acuminate, silvery beneath and its veins are strongly raised. The inflorescence is shorter than the lamina. It differs from P. wightii Miq. by the shape of leaf and the whitish undersurface of the leaves.