Piper protrusum (Piperaceae), a new species from southern Thailand based on morphological and molecular evidence
Runglawan SUDMOON, Tawatchai TANEE,Arunrat CHAVEERACH
J Syst Evol . 2011, (5): 468 -475 .  DOI: 10.1111/j.1759-6831.2011.00148.x