Saturday, September 24, 2022

[Botany • 2022] New Species and A Revision of the Genus Peperomia (Piperaceae) in Thailand


เบี้ยพ่อตา  ||  Peperomia ranongensis Suwanph., Hodk. & Chantar., 

in Suwanphakdee, Hodkinson & Chantaranothai, 2022. 

Abstract
We update the descriptions of seventeen native species of Peperomia in Thailand, including a new species, P. ranongensis, and a detailed morphological description for the uncommon species P. kotana based on Thai specimens. We provide a generic description, a key to all the species and provide lectotypifications for P. bavina, P. heyneana, P. laticaulis, P. nakaharae and P. reflexa var. parvifolia. Five species, P. heptaphylla, P. masuthoniana, P. multisurcula, P. ranongensis and P. sirindhorniana, are endemic to Thailand. Peperomia pellucida is a common pantropical species. Eight species, namely P. cavaleriei, P. dindygulensis, P. heyneana, P. laevifolia, P. masuthoniana, P. moulmeiniana, P. multisurcula and P. sirindhorniana have a high potential for development as ornamental plants.

Keywords: Flora of Thailand, lectotypification, Piperales, taxonomy, tropical plants

A. Peperomia dindygulensis Miq.; B. P. kotana C.DC.;
C. P. masuthoniana Suwanph. & Chantar.; D. P. moulmeiniana C.DC.;
E. inflorescences of P. moulmeiniana C.DC.; F. P. pellucida (L.) Kunth;
 G. P. portulacoides (Lam.) Dietr.; H. P. tetraphylla (G.Forst) Arn.
(photos by C. Suwanpahkdee).

Peperomia ranongensis Suwanph., Hodk. & Chantar.:
 A. plant with inflorescences; B. a portion of infructescence; C. 3-verticillate; D. opposite-decussate; E. fruit image from light microscope; F. fruit image from scanning electron microscope; G. papillae imaged from scanning electron microscope (photos by C. Suwanpahkdee).


Chalermpol Suwanphakdee, Trevor R. Hodkinson and Pranom Chantaranothai. 2022. New Species and A Revision of the Genus Peperomia (Piperaceae) in Thailand. Thai Forest Bulletin (Botany). 50(2); 104–119.  DOI: 10.20531/tfb.2022.50.2.11