Saturday, December 30, 2023

[Botany • 2023] Piper kerrii, P. phangngaense & P. rugocarpum (Piperaceae) • Three New Species, Two New Records and additional Taxonomic Notes of Piper from Thailand


Piper rugocarpum Y.Banchong and Suwanph.,
Piper kerrii Suwanph. and Y.Banchong, 
Piper phangngaense Suwanph. and Hodk., 

in Suwanphakdee, Karapan, Banchong et Hodkinson, 2023.

Abstract
We revised the genus Piper (Piperaceae) for the forthcoming volume of the Flora of Thailand. Three new species, namely P. kerrii, P. phangngaense and P. rugocarpum are described and illustrated. In addition, two records of species new to Thailand, P. laosanum and P. obtusissimum, are presented. New complete taxonomic descriptions of P. crassipes and P. obtusissimum are provided. We also designate lectotypes and epitypes of P. laosanum and P. obtusissimum, respectively. An emended key to species including the new species, new records for Thai Piper species and additional taxonomic notes are provided.
Keywords: asian Piper, Flora of Thailand, new species, Piperaceae, tropical plants


Piper kerrii Suwanph. and Y.Banchong, sp. nov.

Etymology This species is named in honour of A. F. G. Kerr (1877– 1942), who is recognized as the ‘founding father’ of Thai botany. He was the first botanist to collect Piper specimens from Ranong province.


Piper phangngaense Suwanph. and Hodk. sp. nov.

Etymology The specific epithet of this species refers to its type locality (Sri Phang-Nga National Park, Phangnga province, Thailand).



Piper rugocarpum Y.Banchong and Suwanph., sp. nov.

Etymology The specific epithet refers to the distinguishing character of the fruit surface which is rugate when dry.

New records for Thailand 
Piper laosanum C.DC. (De Candolle 1910)
Phitsanulok province, Phu Hin Rong Kla National Park

Piper obtusissimum Miq. (Miquel 1843–1844).
Narathiwat province, Hala-Bala Wildlife Sanctuary

 
Chalermpol Suwanphakdee, Sunate Karapan, Yuthana Banchong and Trevor R. Hodkinson. 2023. Three New Species, Two New Records and additional Taxonomic Notes of Piper (Piperaceae) from Thailand. Nordic Journal of Botany. e04099. DOI: 10.1111/njb.04099